Chemistry Questions and Answers August 08, 2020

Draw the main Lewis structure of NOF. Draw nonbonding electrons using the dot notation and bonding electrons as a bond. Submit 10 12 reset help Hints My Answers Give Up Review Part Incorrect Try Again 2 attempts remaining,Determine the number of bonding electrons and the number of nonbonding electrons in the structure of BeF2. Enter the number of

The following is a diagram of energy states and transitions in the hydrogen atom. ENERGY 1 2 3 4 5 Match each arrow with the correct response below. n n 4 n 3 n 2 II infinity n 1 a) The emission line with the longest wavelength. b) The absorption line with the longest wavelength. c) The emission line with the highest energy. d) The absorption

A Fischer projection of a monosaccharide is shown below HO HO CHOH CO H H CHOH a. Classify this monosaccharide (e.g., aldotriose) b. Does it have the D or L configuration c. Which carbon and oxygen become bonded in the furanose ring form of this monosaccharide (e.g., C206, where 06 means the oxygen on carbon 6, or not formed) d. Which carbon and

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) Which of the following compounds does not have an alpha hydrogen L II. A) I B) II C) III HCH H CH H E III. D) IV E) all of the above 2) Which of the labeled hydrogen atoms in the following structure is the most acidic IV. cl A) achloroethanal

Draw and name the product for the following reaction between an alkyne and one equivalent of HCl. Hint/ Explanation: H and Cl? will add to the carbon atoms of the triple bond. The addition is regioselective.

C H(by 3methyl1butyne

Draw the structure of the organobromide that can be used toprepare the following Gilman reagent.

CengageBrain Login or X OWLv2 Online teaching X C west.cengagenow.comilrntakeAssignmenttakeCovalentActivity.dolocatorassignmenttaketakeAssignmentSessionLocatorassignmenttake EOC Week 13 Question 1 1 pt Question 2 Question 3 Question 4 Question 5 Question 6 Question 7 Question 8 Question 9 1 pt Progress 811 items Due Dec 9 at 1155 PM 1 pt 1 pt

Classify each statement as true or false. Drag the appropriate items to their respective bins. View Available Hint(s) Period 3 elements have six 2p electrons. The valence electrons of group 5A elements are in the 6s subshell. Group 8A elements have completely full outer principal shells. True The highest principal quantum number of period 2

Do you expect AH soln to be a large positive number, a large negative number, or close to zero Complete the sentences to explain your answer. Match the words in the left column to the appropriate blanks in the sentences on the right. solventsolvent (AH solvent) value close to zero large negative number solutesolvent (AHmix) dipoledipole forces

Draw the product of the oxidation of the following aldehyde. Include all hydrogen atoms in your structure.

Draw the product of the oxidation of the following aldehyde. Include all hydrogen atoms in your structure. H3CCHCHCHCHCHCH3 CH oxidation

The microwave spectrum of 13C160 shows the first four absorptions at the following wavenumbers (cm) 3.673, 7.345, 11.018, 14.690 (a) Explain the general form of this spectrum by considering the appropriate energy level diagram of a diatomic molecule. (b) Indicate the two selection rules that apply to molecular rotation. (c) Calculate the bond

Draw the structures and assign formal charges, if applicable, to these structures. Draw BH, and add formal charges, if applicable. Draw Rings More Select G BH Erase Select Draw Rings More 1 Q2 Q Draw I with three lone pairs and add formal charges, if applicable. Erase Draw BH, and add formal charges, if applicable. Select Draw Rings B H More

Draw a structural formula of the R configuration of the compound shown below. Br CH3CHCHCHCH . Use the wedgehash bond tools to indicate stereochemistry where it exists. Include H atoms at chiral centers only. If a group is achiral, do not use wedged or hashed bonds on it. () Ill P opy aste ChemDoodle

Draw the major product of each of the following reactions. Both reactions start with para-nitrobenzaldehyde and form one major organic product. Do not draw inorganic side products.

NaBH. 1.Sn, HC1 2. NaOH Is this reaction selective to one functional group OH H 0 of NH

Data Table 1 Chemical Change Observations Well Chemical 1 (4 drops) A1 A2 A3 A4 A5 A6 B1 NaHCO3 Sodium Bicarbonate IKI indicator KI Potassium lodide NaOH Sodium Hydroxide HCI Hydrochloric Acid NaOH Sodium Hydroxide AgNO3 Silver Nitrate Chemical 1 Appearance Chemical 2 (4 Chemical 2 drops) Appearance HCI Hydrochloric Acid Starch Pb(NO3)2 Lead(II)

The data below were collected for an enzyme-catalyzedreaction. Determine Vmax and Km for this reaction.

The data below were collected for an enzymecatalyzed reaction. S (MM) 0.20 0.50 2.00 4.00 Determine Vmax and Km for this reaction. V max Number Vo (mMs1) 0.37 0.83 2.22 3.08 Number mm. s mM This graph is provided for your use only. It will not be graded. (It is not necessary to use a graph to answer.) 0.8 0.6 0.4 0.2 0.0 0.2 0 1 2 3 4 5 6 7 8 9

draw the major products of nitration of benzenesulfonic acid

of ts pt pt pts 1 pt 2 Draw the major product(s) of nitration of benzenesulfonic acid. 0 You do not have to consider stereochemistry. You do not have to explicitly draw H atoms. Draw organic products only. Separate multiple products using the sign from the dropdown menu. Submit Answer OH ChemDoodle Try Another Version 1 item attempt

Draw the curved arrow to show the bond formation for the following reaction.

Draw the curved arrow to show the bond formation for the following reaction. H X HC CH3 0 The secondary carbocation in the reaction is the The chloride ion in the reaction is the Select answer Select answer H Ki CI HC CH3

Part A Describe the hybridization of the carbon atom in the poisonous gas phosgene, Cl CO. Match the words in the left column to the appropriate blanks in the sentences on the right. Make certain each sentence is complete before submitting your answer. Submit sp two four sp 2 sp one three There are three bond(s) and one bond(s) in the phosgene

Draw the conjugate base for the following acid (include lone pairs in your answer) OH Edit Draw the conjugate base for the following acid (include lone pairs in your answer) Edit IN Get help answering Molecular Drawing questions. Draw the conjugate base for the following acid (include lone pairs in your answer) NH3 Edit Get help answering

Consider the following copolymer structure: Draw the structuresof the monomers used to form the copolymer.

Consider the following copolymer structure Draw the structures of the monomers used to form the copolymer.

Consider the equilibrium reaction 2AB 4C After multiplying the reaction by a factor of 2, what is the new equilibrium equation 0 Drag the following labels into the numerator and denominator as needed to create the equilibriumconstant expression, Kc, for the new equilibrium reaction. K A BC A B A B C4 C If the initial reaction contains 1.31 MA,

Complete this structure for open-chain D-glucose by replacing each X with either H or O?H

Part B Complete this structure for openchain Dglucose by replacing each X with either H or OH. Complete the molecule by replacing each X with the appropriate atoms or groups of atoms. OH H H H IIII DOOD OH H reset help

A) What is the average rate of the reaction between 0 and 10s? B) What is the average rate of the reaction between 40 and 50s? C) What is the rate of formation of C2H4 between 20 and 30 s?

Consider the following reaction C4H8 (9) 2CH4 (9) The following data were collected for the concentration of C4 Hg as a function of time Time (s) 0 10 20 30 40 50 C4H8 (M) 1.000 0.913 0.835 0.763 0.697 0.637

Draw structural formulas for the products of the reaction shownbelow.#1 #2 #3

Draw structural formulas for the products of the reaction shown below. CH3 CH3CHCHCHOC CH3 You do not have to consider stereochemistry. Assume equimolar amounts of the reagents. HI

A bc A absorbance b path length (typically 1 cm for standard cuvettes) molar absorptivity (aka extinction coefficient) c concentration of chromophore,Part I. Calculation of the Molar Absorptivity of Heme 1. Using the following dilution scheme Dilution 1.12 M Hemoglobin stock (mL) 1 12345 2 3 4 5 0.60 1.20 1.80 2.40 3.00 Phosphate Buffer

Draw the salt produced in this reaction. Include charges. Whatis the IUPAC name of the salt?

Question 4 of 15 sapling leaming Draw the salt produced in this reaction. Include charges. KOH What is the IUPAC name of the salt Map HO,Question 4 of 15 sapling leaming Draw the salt produced in this reaction. Include charges. KOH What is the IUPAC name of the salt Map HO,Question 4 of 15 sapling leaming Draw the salt produced in this

Be sure to answer all parts. Draw all products, including stereoisomers, in the following reaction. H Part 1 Identify which mechanism(s) the reaction will undergo. SN1 SN2 El E2 Part 2 The number of SN1 product(s) 2 The total number of El product(s) (including stereoisomers) 3 Part 3 out of 3 The Syl products draw structure... (R isomer) draw

Draw the product of the following reaction between a ketone and an alcohol. H3C CH3 HOCH2CH3 1L How would you classify the product of the reaction s an alcohol. It is a ketone. It is a hemiacetal. It is an acetal.

Calculate how much of H 2 SO 4 solution of 98%w/w will be added to the distilled water 250ml in order to have 1N(normality) of H 2 SO 4 in to 250ml. (Hint your need to find density)

Draw a plausible mechanism for the following transformation 19.08b1 4 HSO excess EtOH HO EtO OEt Add curved arrow(s) to draw step 1 of the mechanism. Modify the given drawing of the product as needed to show the intermediate that is formed in this step. fi CH HC CH Edit Drawing HC CH CH,Draw a plausible mechanism for the following transformation

Draw and name the organic product of the following reaction Cl FeCla HCI,Draw and name the organic product of the following reaction HNO3 HSO4 HO,Draw the uncharged product of the following reaction SO3 HSO4,Draw and name the organic product of the following reaction CHCI AICI3 HCI,Draw the major organic product of the following FriedelCrafts

Draw the correct bondline structure for the following compound (CH3)3CC(CH3)3 Draw Your Solution eTextbook and Media Hint Save for Later,02.05b Draw the correct bondline structure for the following compound CH3CHCH(CH3)2 Draw Your Solution Hint Save for Later,Draw the correct bondline structure for the following compound (CH3CH)3COH Draw Your

Draw a structural formula for the product formed upon hydroborationoxidation of the alkene below. CH astered Use wedge and hash bonds ONLY for rings. Do not show stereochemistry in other cases. If the reaction produces a racemic mixture, just draw one stereoisomer. C opy P aste F

5. For each of the following IUPAC names, draw a structural diagram. (A) 2methylpentane (D) octane (B) 2methylprop1ene (C) propyne (E) 2,3,4trimethylpentane (F) cyclohexane

Draw a carboxylic acid that results from the hydrolysis of glyceryl tributyrate (Figure 1). Include only one carboxylic acid product in your answer., CHOC(CH2)2CH3 O CH OC(CH2)2CH3 O CHOC(CH2)2CH3,How many H molecules are needed to completely hydrogenate the following triacylglycerol molecule (Figure 2),CHzOC(CH2)6CH3 CHOCCH2CHCHCH2CHCHCH2CH3

Consider the reaction of an alkyl bromide with hydroxide. Br HO Draw the neutral organic products. incorrect ON Feedback The structure you drew is correct, but there is another major product. Think about which other mechanism is likely.

Draw the major organic substitution product(s) for (2R,3S)2bromo3methylpentane reacting with the given nucleophile. Indicate the stereochemistry, including Hs, at each stereogenic center. Omit any byproducts. Br H CH3CHO (conc.)

A compound has infrared absorptions at the following frequencies 1650 cm, 3200 and 3400 cm (both weak) Suggest the likely functional group that may be present ester ketone carboxyl group secondary amine alcohol ether Submit Answer Try Another Version 1 Item aldehyde primary amine primary amide secondary amide tertiary amine tertiary amide

Help please

34. 33. 35. 36. 37. A covalent bond is best described as A. a bond between a metal and a nonmetal. B. the transfer of electrons. C. the sharing of electrons between atoms. D. a bond between a metal and a polyatomic ion. E. a bond between two polyatomic ions. Identify the compound with covalent bonds. A. FeO3 B. CO C. NaBr D. Ca E. LiCl What is the

This compound was synthesized from benzene by the scheme outlined. CH3 Br CH3 1. CH3CI, AICI3 2. CH3CI, AICI 3 3. Br2, FeBr3 Draw the structure of the product that results from step 1 of the scheme. You do not have to consider stereochemistry. You do not have to explicitly draw H atoms. In cases where there is more than one answer, just draw

Consider the energy diagram for a general reaction, reactants products. What are the expected signs of and ? 1. ? E sys is positive and ? E surr is positive. 2. ? E sys is negative and ? E surr is negative. 3. ? E sys is positive and ? E surr is negative. 4. ? E sys is negative and ? E surr is positive.

Internal energy (E) reactants products

(a) Determine the formal charge of oxygen in the following structure. If the atom is formally neutral, indicate a charge of zero. H Formal charge on O 1 (b) Draw an alternative Lewis structure for the compound given in part (a). Show the unshared pairs and nonzero formal charges in your structure. Dont use radicals.

Data Table 2 Sodium Hypochlorite SDS information Items Physical State Route of Exposure Symptoms Protective Equipment First Aid Procedures Firefighting Measures Chemical Reactivity Safe Storage Safe Disposal Environmental Ecotoxicity Spill Cleanup Procedures SDS Information Liquid and no color Eye contact, skin contact, inhalation and ingestion

A gas expands from 3 L to 8 L at constant temperature. Calculate the work done (in joules) by the gas if it expands against a constant pressure of 2.1 atm. NOTE Write only numeric value in the answer.

Draw a structural formula for the major organic product of the reaction shown below. . . Br Consider EZ stereochemistry of alkenes. Do not show stereochemistry in other cases. You do not have to explicitly draw H atoms. Do not include organocopper or inorganic ion byproducts in your answer. Oto P opy aste CuLi ,Draw a structural formula for

Consider equimolar samples of different ideal gases at the same volume and temperature. Gas A has a higher molar mass than gas B. Compare the pressures. AB A B O A D CD O C B OAB OA F O EF OE D OCD OC D Give Up View Solution OCD OC F O EF OE

Draw the aldehyde or ketone that thefollowing enone could be prepared from by the adolreaction. Draw the curved arrows. Please use thisexact picture to draw the arrows. I am super confused by the otherexplenations. ): Thank you!

Question 1 Question 2 Question 3 Question 4 Question 5 Question 6 Question 7 Question 8 Question 9 Question 10 Question 11 Progress 811 items Due Nov 28 at 1155 PM 1 pt 1 pt 1 pt 1 pt 1 pt 1 pt 1 pt 1 pt 1 pt 1 pt 1 pt References Draw the aldehyde or ketone that the following enone could be prepared from by the aldol reaction. ball stick v

Please explain your answer.

Each cyclic structure shown below contains a heteroatom that has lonepair electrons. For each structure, answer the following questions Are the lonepair electrons delocalized ( electrons and part of the system) Is the structure aromatic The lone pair is delocalized. The lone pair is not delocalized. The compound is aromatic not aromatic The lone

Complete the statements about the redox reaction below. 3 electrolytic Cu(aq) 1 5 2 2Cu (aq) Fe(s) 2Cu(aq) Fe (aq) Halfreactions Fe (aq) Cu (aq) 6 voltaic Fe(s) Cu (aq) e Fe (aq) 2e Cu (aq) Fe(s) E 0.15 V E 0.44 V is being oxidized. is being reduced. is acting as an reducing agent. is acting as an oxidizing agent. The reaction is a(n)

What are the correct conditions for the following transformation 2 3 3 1. BH3 2. H02 Br 80 4 5 al TO MacBook Air 6 20 7 Br Br ditv 8,2 W Br 3 Br HO 1.03 2. Zn 80 E 4 000 R 5 T TO MacBook Air 6 Y 7 tv U 8

For a mixture of n-hexane (C 6 H 14 ) and 2,3-dimethyl butane (C 6 H 14 ), the vapor pressure of the solution is 108.2 kPa. The vapor pressures of pure n-hexane is 101.3 kPa; the vapor pressure of 2,3-dimethyl butane is 112.7 kPa. What is the mole fraction of n-hexane in the solution phase?

Complete the mechanism for the keto-enol tautomerization below using bonds, charges, nonbonding electron pairs, and curved arrows (forward reaction only). Do not remove any pre-drawn bonds/lone pairs.

enol form H HO H keto form HOTH H3C X 8H 1L 1L H8 H8 (b) The tautomer that predominates in aqueous solution is the H H3C HC I keto form. enol form. 8H 8H Map o (Scroll down for more)

Print Question 36 of 36 Hint Calculator Complete the electronpushing mechanism for the following decarboxylation reaction. Add bonds, nonbonding electron pairs (lone pairs), and curved arrows where indicated. Add three curved arrows. Periodic Table H 0 4.12 H CH3 Complete the structures. Do not add curved arrows. 1 tautomerization 0 CH3 Previous

At a concentration of 1 M, the weak acid HNO is 2 ionized and the pH of the solution is 1.7. What happens when KNO(s) is dissolved into the solution The extent of HNO2 ionization The concentration of H The pH decre ses. increases.

Complete the base-dissociation reaction and its K c and K b equations.

Complete the basedissociation reaction and its Kc and K, equations. (aq) B Kc Kb K HO Put the weak base (B) or weak acid (HB) species before the water species (HO, HO, or OH). r (1) HB OH H3O (aq) (aq)

ORGANIC CHEMISTRY JANET L. MAXWELL presented by sapling learning Draw the correct product(s) for the following oxidative cleavage reaction. (1)KMnO, OH, heat (2)HO Incorrect. OH The strong oxidizing conditions convert vinylic hydrogens to hydroxy groups.

Draw the alcohol that is oxidized to give the product shownbelow. Show all hydrogen atoms.

Draw the alcohol that is oxidized to give the product shown below. Show all hydrogen atoms. oxidation CH3 H3C CHCHCH CH3

Determine the isotope symbol that fits each description. a. 68 neutrons, 47 electrons 47 115 c. atomic number 86, 136 neutrons 86 Ag 222 Rn b. mass number 197, 79 electrons 79 197 d. atomic number 76, mass number 192 76 Au 192 Os 115 222 Os Pt Ag 86 76 47 197 79 192 Er 78 Rn Au 68

To which of the following compounds does the NMR spectrumbelong?

To which of the following compounds does the NMR spectrum belong chemical shift, Hz 1200 A) cis3hexene B) (Z)1ethoxy1butene C) 2ethyl1butene D) ClCHCH(OCH2CH3)2 E) CICHCHCI H3CCHO OCHCH3 A) B) C) D) O E) 2400 8 2100 1800 7 1426 6 1500 1458 5698 900 600 300 5 4 3 chemical shift, ppm (8) The magenta numbers in the spectrum are the relative integrals

Draw a stepwise mechanism for the following acid-catalyzed addition of water to a carbonyl: Could someone help me with the last part of the question? I'm not sure how to finish part 3 and 4 of the mechanism.

7. Award 7.50 out of 10.00 points Your response Be sure to answer all parts. Draw a stepwise mechanism for the following acidcatalyzed addition of water to a carbonyl OH Part 1 view structure F H F H HO F view structure H F F A. F B. HO C. HF OH D. HO E. H3O

Below is a diagram of the mechanism of a general enzymecatalyzed reaction. Put the labels in the correct locations. The abbreviations E, P, and S indicate the enzyme, product, and substrate, respectively. ES SP ES SP EP 14 EP

Complete the enthalpy diagram for an ionic compound dissolving in water. vaporization AHsolution AHfusion endothermic exothermic AHformation AHhydration AHsolute Enthalpy, H BY(s) This reaction is B(g) Y(g) B(aq) Y(aq) Hfinal Hinitial

Part A Estimate the volume, V, of one sodium atom (Na) using its metallic radius of 186 pm. Express your answer with the appropriate units. V 2.70x107 pm Submit Hints My Answers Give Up Review Part Correct If you were as big as the Empire State Building, a sodium atom would be slightly smaller than a grain of sand. Part B Using your answer from

Given these standard reduction potentials at 25 C 3 1. Cr e Cr 2. Cr 2e 3 Cr 3e O E Cr(s) determine the standard reduction potential at 25 C for the halfreaction equation Cr(s) Number O E E 0.913 V V 0.407 V

What is the expected major product for the following reaction sequence 1. BHTHF 2. HO, NaOH tox III OIV OV 01 ell Question 11 HO HO. 2247 enantiomer enantiomer III enantiomer 11 NaOH, HO HO, HO 1). BH, THF 2). HO, HO, HO 1). Hg(OAc), CHOH 2). NaBH 1). Hg(OAc), HO, THF 2). NaBH What reagents are needed to accomplish the following synthesis IV

Give the systematic name for the compound KCoBr4. potassium tetrabromocobalate Part 2 (1 point) Give the systematic name for the compound NH4Zn(HO)(OH)3. ammonium aquotrihydroxozinc (II) Part 3 (1 point) Give the systematic name for the compound Fe(NH3)5CICI2. pentaammoniumchlorideferrate (III) chloride

Give all possible m, values for orbitals that have each of the following values (a) 2 1, 0, 1 2,1, 0, 1, 2 3, 2, 1, 0, 1, 2, 3 (c) n 4, 10 1, 0, 1 2, 1, 0, 1, 2 3, 2, 1, 0, 1, 2, 3 (b) n 2 (choose all possible solutions) 1, 0, 1 2, 1, 0, 1, 2 3, 2, 1, 0, 1, 2, 3

Given w 0, an endothermic reaction has the following. and AH and AE and and ,Which statement is FALSE Endothermic has a positive . An exothermic reaction gives heat off heat to the surroundings. AHrxn is the heat of reaction. AErxn is a measure of heat. Enthalpy is the sum of a systems internal energy and the product of pressure and

Part E Give the nuclear symbol for the isotope of beryllium for which A 10 Enter the nuclear symbol for the isotope (e.g., He). View Available Hint(s) Hint 1. Isotope notation Hint 2. Determine the atomic number 0 11 10 Be 0 Xb Submit a b 16 KI X . Previous Answers Request Answer X Thats not quite right. Please check your formatting and try

1x Express your answer as a symbol or as an isotope. Submit Part D 39 0 Part E Express your answer as an isotope. 0 Submit My Answers Give Up Express your answer as an isotope. AYA My Answers Give Up pow S

7) Which of the following will cause the volume of an ideal gas to triple in value A) Raising the absolute temperature by a factor of 3 while increasing the pressure by a factor of 3. B) Lowering the absolute temperature by a factor of 3 while increasing the pressure by a factor of 3. C) Lowering the pressure by a factor of 3 while the temperature

Which of the following bases is the strongest The base is followed by its Kb value. CH3NH2, 4.4 x 104 C6H5NH2, 4.0 1010 C5H5N, 1.7 10 NH3, 1.76 x 105 (CH3CH)NH, 8.6 x 104

(a) Determine which of the following graphs represents the relationship of reaction rate (velocity) and substrate concentration when the enzyme concentration of the nonallosteric enzyme is constant. Move the correct graph to the set of axes. Reaction velocity Substrate concentration (b) Determine how reaction rate (velocity) varies with substrate

3. Determine the electron geometry (eg) and molecular geometry (mg) of XeF2. A) eg trigonal bipyramidal, mgbent B) eglinear, mglinear C) egtetrahedral, mglinear D) egtrigonal bipyramidal, mglinear E) egtetrahedral, mgbent 4. Determine the electron geometry (eg) and molecular geometry (mg) of XeF4. A) egtetrahedral, mgtetrahedral B) eg linear,

Determine the total number of nonbonding electrons that should be added to each of these molecules. FH nonbonding electrons HOH nonbonding electrons 0NH nonbonding electrons,Consider the structure shown. O Determine the number of shared and unshared electrons in the structure. shared (bonding) electrons Determine the number of shared and unshared

Current is applied to a molten mixture of CuF, ZnCl2, and MgI. Standard reduction potentials can be found in this table. What is produced at the cathode Mg F2 Cl Zn Cu 12 What is produced at the anode F2 Cu Cl 12 Zn Mg

In the diagram below, the gray unit represents. ORNA O DNA O transcription factors VV ORNA polymerase O the promoter Submit VVM Request Answer,In the diagram below, the green unit represents ACWVV ORNA ODNA O transcription factors ORNA polymerase O the promoter Submit Request Answer,In the diagram below, the two blue strands represent DVV View

Consider the following reaction: NO2(g)?NO(g)+12O2(g) The following data were collected for the concentration of NO2 as a function of time: A. What is the average rate of the reaction between 10 and 20 s? B. What is the average rate of the reaction between 50 and 60 s? C. What is the rate of formation of O2 between 50 and 60 s?

Consider the following reaction NO(g) NO(g) O2(g) The following data were collected for the concentration of NO2 as a function of time Time (s) NO (M) 0 1.000 10 0.951 20 0.904 30 0.860 40 0.818 50 0.778 60 0.740 70 0.704 80 0.670 90 0.637 100 0.606

Determine the K for CH3NH3 at 25 C. The K for CH3NH is 4.4 x 104. Select one O a. 2.3 x 10 O b. 6.8 x 1011 O c. 3.1 x 1010 Oe. 5.6 x 1010

2. Determine the geometry about each interior atom in each molecule. (Skeletal structure is indicated in parentheses.) CH3NH2 (H3CNH2), CH3COCH3 (H3CCOOCH3, both O atoms are attached to second C), NHCOH (HNCOOH both O atoms are attached to C)

Draw the organic product (if any) expected from each of the following oxidation reactions" Note, [O] represents an oxidizing agent, such as potassium dichromate.

sapling learning Draw the organic product (if any) expected from each of the following oxidation reactions Note O represents an oxidizing agent, such as potassium dichromate. a) b) CH CH CHOH 0 Note O is present in excess. CHCHOHCH, Note O is present in excess. HC TH 11 HI Modify the drawing to represent the product. H A H H AD H ME 11 F M H

Identify ions having the same electronic configuration as noble gases. What ion has the same electronic configuration as each noble gas Choose all that apply. Ca H a. Ne As I Sr Cs b. He S Mg2 0 CI Fe A13 c. Ar Be2 Li d. Kr

For the following electrochemical cell Sn(s)Sn (aq, 0.0155 M)Ag (aq, 1.50 M)Ag(s) write the net cell equation. Phases are optional. Do not include the concentrations. Calculate the following values at 25.0 C using standard potentials as needed. Ecell E cell Number 0 Number 0 AG rxn G. rxn Number 0 Number 0 kJmol kJmol

Hint What information does the chemical shift of an NMR signal convey Select the correct answer. the number of chemically equivalent nuclei that produce the signal the chemical environment near the nuclei that produce the signal the relative mass of the nuclei that produce the signal the stretching frequencies of the bonds adjacent to those nuclei

Indicate the hybridization about each interior atom in NH (whose skeletal structure is HNNH). Match the items in the left column to the appropriate blanks in the sentences on the right. sp sp linear tetrahedral sp trigonal planar The left interior N atom has hybridization. The right interior N atom has hybridization. electron geometry and Reset

Indicate which atoms in the following compound are chiral centers. CH3 B d N IZ (Provide a list of letters without spacing. Alphabetize your list (abcd).) Chiral centers How many stereoisomers do you expect for this compound

The following alkenes can be used as substrates in polymer synthesis. CH3 H A A CH3 OD CH3 H B Which substrate would be the best substrate for cationic polymerization D

Show all steps and explainplease.

3. If the energy of a photon is 1.321018 J, what is its wavelength in nm OA. 1.51107 nm B. 151 nm OC. 1.99x1015 nm D. 1.99x1024 nm E. 6.64x10 nm

Which of the following designations are accurate for the fatty acid shown 195(44.7.10,13,15) 205(458,11,14,17) 205(43,69,12,15) eicosanoic acid w3 fatty acid

Draw the most stable form of the major product in the following reaction. There is a hint available View the hint by clicking on the bottom divider bar. Click on the divider bar again to hide the hint. 1. NaOCH 2. H,O CHOH O que

For the following dehydrohalogenation (E2) reaction, draw the major organic product(s), including stereochemistry. CI H F Br KOH ethanol heat For the following dehydrohalogenation (E2) reaction, draw the major organic product(s), including stereochemistry. CH, CH OK CH, CHOH heat

Draw the major organic product of the reaction shown below. HSO4 stered . You do not have to consider stereochemistry. You do not have to explicitly draw H atoms. . In cases where there is more than one answer, just draw one. . OH II... CP opy aste ,CH3 HC OH Submit Answer XE HC Review Topics CH3 HC CH3 Secondary alcohols are often dehydrated

Draw the major organic product, assuming no dehydration of aldol product has occurred. Also draw mechanism. Draw the major organic products. Also draw mechanism.

For the following reaction H NaOH CH3CHOH

bu es ext nam cum er S ourse Constants Periodic Table In general, an enzyme has one active site at which catalysis can occur. When the substrates are bound to the active site, the enzyme will catalyze the reaction. As the concentration of substrate increases, the reaction rate increases, until the point where the active site is saturated with

Hydrogen atoms are excited by a laser to the n 4 state and then allowed to emit. What is the maximum number of distinct emission spectral lines (lines of different wavelengths) that can be observed from this system 1 O2 A Calculate the wavelength of the 41 transition. 7 8 Number 0 m

Consider the following compound. How many sigma and pi bonds does it contain CH3CHCHCOH 13 sigma, 0 pi 6 sigma, 2 pi 9 sigma, 4 pi 9 sigma, 2 pi 11 sigma, 2 pi

Assigned as Homework HQ5.29 A gas is compressed in a piston with 87 J of work. As a result, 43 J of heat is given off to the surroundings. What is the change in internal energy (AU) of the gas Numeric Answer Unanswered Submit,Which statement best describes the First Law of Thermodynamics O O HQ5.24 O A D The change in internal energy of a system

Consider the figure that shows the distillation apparatus. Describe the practical reasons behind the direction of the flow of water through the condenser.

the hoses water begins to boil and the vapor distills over to the collection vessel. Be water faucet. Heat the flask using a heating careful not to allow the flask to rest directly on the bottom of the heating mantle, or to allow the suspension to foam up into the 3way connector. You may notice the distillate is cloudy due to the mixture of water

STARTING AMOUNT X ADD FACTOR x( ) 1 Convert the concentration of 0.700 M NaSO4 to gmL 6.022 x 1023 M NaSO4 gmL 0.0994 1000 mL 99.4 0.001 L ANSWER 0.0833 g Na 0.700 83.3 mol NaSO4 142.04 RESET 3 119.05 mol Na g NaSO4

Consider the reaction of an alkyl bromide and hydroxide ion. Br Draw the SN 1 product. Select Draw Rings More C H 0 Incorrect OH OH Erase Q2Q Draw the SN2 product. Select Draw Rings Incorrect M OH More H 0 Erase Q2Q