Chemistry Questions and Answers August 06, 2020

Given that (1) the first and second electron affinities of sulfur are0.332 aJ and 0.980 aJ, (2) the ionic radii of Zn2 and S2 are 74 pm and 184 pm, andthat (3) Zn (g) -> Zn 2+ (g) + 2e- E= 4.38aJ calculate the energy change for this reaction (per formula unitof ZnS). Zn (g) + S (g) --> ZnS (g) Erxn = ???? aJ

Given the following plot for the decomposition of N2O5,calculate the frequency factor (A): Y axis: ln k X axis: 1/t (K) The graph is a linear line. y= -12232x+30.863 R 2 =1.000

Give the characteristic of a second order reaction having onlyone reactant. A) The rate of the reaction isnot proportional to the concentration of the reactant. B) The rate of the reaction isdirectly proportional to the square of the concentration of thereactant. C) The rate of the reaction is directly proportional to thesquare root of the

Which of the following statements about electromagneticradiation is correct? Wavelength and frequency are directly proportional. All electromagnetic waves travel at the same speed. The velocity of electromagnetic waves varies inversely withfrequency. All electromagnetic waves have the same wavelength. All types of electromagnetic radiation have

Determine whether the following are polar or nonpolar 1. CF3CI Select 2. CH Select 3. SF2Cl2 Select 4. HO2 Select 5. OCI2 Select 6. PC Select 7. PO43 Select

You are working in the ICU and have been asked to step down drug X from IV to oral formulation for an elderly patient. You gather from the literature that drug X is extensively metabolized, and that it can be given IV or PO. Examining the monograph, you noticed that drug s IV dose is roughly equivalent to the oral dose, and that its oral

Determine whether a bond between each of the following pairs of atoms would be pure covalent, polar covalent, or ionic. Drag the appropriate items to their respective bins.

Exercise 9.55 Part A Determine whether a bond between each of the following pairs of atoms would be pure covalent, polar covalent, or ionic. Drag the appropriate items to their respective bins. Pure covalent Submit My Answers Give Up Se and Se C and Cl Polar covalent C and I Na and O Ionic reset help Provide Feedback Continue no ter ud er To mp ce

Draw the alkene product of this Wittig reaction. C H3C Ph3P Use the wedgehash bond tools to indicate stereochemistry where it exists. Consider EZ stereochemistry of alkenes. Include H atoms at chiral centers only. CN If a group is achiral, do not use wedged or hashed bonds on it. Do not include lone pairs in your answer. They will not be

The elements of which group in the periodic table release the most energy by gaining an electron 1A 2A 3A 4A 5A 6A 7A 8A The elements of which group in the periodic table absorb the most energy when gaining an electron 1A 3A 4A 5A 6A 7A 8A

look at the list of fabrics that are woven into the multifiber fabric. which do you suspect will be the most difficult to dye? which do you suspect will absorb the dyes in a similar way? why?

Black thread Acetate rayon SEF Amel Cotton Creslan Dacron 54 Dacron 64 Nylon 6,6 Orion 75 Silk Polypropylene Viscose rayon Wool HO OH Polypropylene OH ford HO Cellulose (cotton) CH CH CH CH for at fort CEN CH In OH n Orion (polyacrylonitrile) OH Dacron (polyester) O n O CNCHA C0CHCH H R Wool (R amino acid residue) n fabric and structures for

a) Indicate whether F 2 CCF 2 islinear, planar, or neither. b) Indicate which orbitals overlap to form the bondbetween the carbon atoms in H 2 CCH 2 a. between an unhybridized p orbital on C and an unhybridized porbital on the other C b. between an unhybridized s orbital on C and an unhybridized sorbital on the other C c. between a hybrid sp 2

Kinetic data for the decomposition of CI202 to CIO are summarized in the following table. Cl2O2(g) 2 CIO(g) time (microseconds) C1202 (M) 0 6.60x108 172 5.68x108 345 4.89x108 517 4.21x108 690 3.62x108 862 3.12x108 A) Determine the value of the firstorder rate constant. Answer units are microseconds1 or (us1). B) Determine the halflife for the

A firm operating in the conditions of perfect competition is producing a daily output such that its total revenue is $36000. That output is the profit-maximizing output. The firms average cost is $12, its marginal cost is $18, and its average fixed cost is $8. What is the profit the firm is making at this output? What are its total variable costs

Part A Calculate H3O in the following aqueous solution at 25 C OH 1.5x109 M. Express your answer using two significant figures. Part B Calculate H3O in the following aqueous solution at 25 C OH 2.2x10 M. Express your answer using two significant figures. Part C Calculate H3O in the following aqueous solution at 25 C OH 6.3x1012 M. Express your

Which of the following atoms can expand its valence shell whenbonding? Select all that apply. B N Li C Ne He Cl P O F S Ar Se Be H

Indicate the oxidation number of carbon and sulfur the infollowing compounds. Procedure a. CO b. CO2 c. Na2CO3 d. Na2C2O4 e. CH4 f. H2CO g. SO2 h. SO3 i. Na2SO4 j. Na2SO3 k. Na2S2O3 l. Na2S4O6 m. SCl2 n. Na2S2 o. SOCl2

Governments use the tools they have to boost the economy. When the economy slows and unemployment rises, governments will generally spend more. Low interest rates encourages spending that can boost the economy. A side effect, which isnt always good, is that low borrowing rates can cause housing prices in an area to increase. At times, that can

The line connecting the triplepoint and the critical point on a phase diagram represents_____. a) the temperatures and pressures above which only asupercritical fluid can exist b) the temperatures and pressures at which the solid and gasstates are equally stable and at equilibrium c) the temperatures and pressures at which the liquid and

Canada's ever-lasting debate about how to solve health care: There are many ongoing debates on the future of Medicare/Many conservatives feel that there should be a private option for those who can afford it. People on the left argue that the Health Care safety net, again hasn't kept pace with the times. Should the Canadian Health System go

Which one of the following reactions would produce(S)-3-methoxyheptane in high yield? Entry field with correctanswer sodium methoxide + (R)-3-bromoheptane sodium methoxide + (S)-3-bromoheptane sodium (R)-3-heptoxide + bromomethane sodium (S)-3-heptoxide + bromomethane

Calculate the pOH of a solution made by diluting 20 mL of 0.2 M HCI to 700 mL of solution at room temperature.

Why is it important to determine the qcalorimeter beforedetermining the qmetal? A. Calibrating the calorimeter can change the value of thespecific heat of the metal. B. It makes for easier calculations. C. The heat lost to the surroundings needs to be known before wecan determine the specific heat of the metal.

How will an increase in temperature affect ?G? A=delt g increase B= ?G will increase if the mass-action ratio is greaterthan 1 and decrease if the mass-action ratio is less than 1, andwill not change if the mass-action ratio is equal to 1. C= no change d= decrease E= ?G will decrease if the mass-action ratio is greaterthan 1 and increase if the

Identify the true statements regarding the heme group ofmyoglobin and hemoglobin. A heme group contains four pyrrole rings, which are linked viamethene (methine) bridges. The heme group is conjugated. The globin chains of myoglobin and hemoglobin prevent theoxidation of Fe2 to Fe3 , which irreversibly binds oxygen. The cooperativity of oxygen

The lattice energy of MgCl2 is the energy change for which one of the following processes? a. Mg(s) + Cl2(g) MgCl2(s) b. Mg(g) + 2Cl(g) MgCl2(s) c. Mg2+(s) + 2Cl-(g) MgCl2(g) d. Mg2+(g) + 2Cl-(g) MgCl2(s) e. MgCl2(aq) MgCl2(s)

Keto-enol tautomerization is an important mechanism inglycolysis. How many molecules of ATP are used in the reaction, and how manyare directly made? Two are used to phosphorylate the glucose, and two are directlymade, one from 1,3-bisphosphoglycerate and one fromphosphoenolpyruvate. Two are used to phosphorylate the glucose, two are used

Match the following with the correct answer. Study of heat change in chemical reactions is called Types of systems are When heat has to be supplied to the system by surrounding is known as Milk kept in a closed thermoflask is aan Work done by the system on the surrounding would be process. A open system, closed system, isolated system B.

For a particular isomer of C8H18, the following reaction produces 5113.3 kJ of heat per mole of C8H18(g) consumed, under standard conditions. C8H18 + 25/2(O2) -> 8CO2 + 9H2O DeltaH= -5113.3 kJ What is the standard enthalpy of formation of this isomer of C8H18(g)?

How many oxygen atoms are contained in 2.74 g ofAl 2 (SO 4 ) 3 ? The answer is 5.79x10 22 . I need steps to figure outwhy though. I use Avagrados number, but am getting the wronganswer.

How many hydrogen atoms are in an unbranched alkene with onedouble bond and 3 carbon atoms? How many hydrogen atoms are in a cycloalkene with one doublebond and 3 carbon atoms?

Which of the following solutions is the most basic O a. 0.001 M HCl(aq) O b.0.01M HNO3(aq) OC. 0.0001 M NaOH(aq) d. 0.001 M NaOH(aq)

Describe the Keynesian view on how an adverse supply shock influences the economy and the policy options available to the government or the central bank to stabilize business fluctuations. Explain your answers using the AD-AS framework

Give the direction of the reaction if K0 OA. The compositions of reactant and product are not the same OB. The forward reaction is favored OC. The reaction is at equilibrium, Neither direction reaction proceed OD. The reveres reaction is favored

Indicate the concentration of each ion present in the solutionformed by mixing the following. (Assume that the volumes areadditive.) (a) 30 mL of 0.100 M HCl and 10.0 mL of 0.520 M HCl H+ _____M Cl-______ M (b) 15.0 mL of 0.294 M Na2SO4 and 28.2 mL of 0.200 M KCl Na+______ M K+______ M SO42-______ M Cl-______ M (c) 3.50 g of NaCl in 59.3 mL of

What is the rate law for thefollowing mechanism in terms of the overall rate constant k? Step1: A + B ? C (fast) Step 2: B + C ? D (slow) a) Express your answerin terms of k and the necessary concentrations (e.g., k[A]3[D]). b)Consider the reaction: 2X2Y + Z2 ? 2X2YZ which has a rate law of:rate = k[X2Y][Z2] Select a possible mechanism for the

Step 1 Z ZZ A Step 2 XYZXYZ Step 3 B C Step 1 Step 2 D Step 1 Step 2 E Step 1 (slow) (fast) XYZXYZ (fast) XYZ2 XYZZ (slow) XYZXYZ (fast) Step 1 XYZ2 XYZ2 (slow) Step 2 XYZ2 XYZZ (fast) 2XYXY (fast) X4Y2Z22X2YZ (slow) 2XYZ22XYZ (slow)

The lattice energy of CaF 2 is the energy change forwhich one, if any, of the following processes? A. Ca 2+ ( s ) +2F - ( g ) ? CaF 2 ( g ) B. CaF 2 ( g ) ?CaF 2 ( s ) C. Ca( g ) + 2F( g ) ?CaF 2 ( s ) D. CaF 2 ( aq ) ?CaF 2 ( s ) E. none of these choices is correct

a) Predict the organic product of the reaction of 2methylpropan1ol with phosphorus tribromide. OH PBr3 b) Phosphorus tribromide makes the oxygen of the alcohol a good leaving group and also provides the ncleophilic bromide. Complete the last step of the mechanism below by using curved arrows. H Br product

A mixture of cyclopropane gas and oxygen is used as an anesthetic. Cyclopropane contains 85.7% C and 14.3% H by mass. At 50.0 degrees Celsius and 0.984 atm pressure, 1.56 g cyclopropane has a volume of 1.00 L. What is the molecular formula of cyclopropane? Please show work/ calculations.

What is the heat of reaction (?Hrxn) for the combustion ofacetone (C 3 H 6 O) given the followingthermochemical equations? (Answer should come out to be?Hrxn = ?1755 kJ) 1. 3 C(s) + 3 H 2 (g) + O 2 (g) ?C 3 H 6 O(?) ?Hf = ?285.0 kJ 2. C(s) + O 2 (g) ? CO 2 (g) ?Hf = ?394.0 kJ 3. H 2 (g) + O 2 (g) ? H 2 O(?) ?Hf = ?286.0 kJ

Pd has an anomalous electron configuration. Write the observedelectron configuration of Pd. Express your answer in complete form in order of increasingorbital energy. For example, 1s22s2 should be entered as1s^22s^2.

In a hurry to complete the experiment, Joseph failed tocalibrate the spectrophotometer. As a result, all absorbance valuesfor the standard solutions that are measured and recorded are toohigh. How will this affect the following for the TestSolutions? a. Will the equilibrium concentrations of FeNCS2+ be too high,too low, or unaffected? Explain. b.

Part A Use the drawing of the MO energy diagram to predict the bondorder of Li2+. Express the bond order as an integer or fraction. Part B Use the drawing of the MO energy diagram to predict the bondorder of Li2?. Express the bond order as an integer or fraction. Part C Which molecules are predicted to exist in the gas phase? Check all that apply

which of the following would reagents would oxidize Zn to Zn^2+, but not Fe to Fe3^+ a) Ca^2+ b)Br2 c)Co d)Ca e)Br^- f)Co^2+ Which of the following reagents would oxidize Cu to Cu^2+, but not Au toAu^3+ a) Co^2+ b) Ca c) Ca^2+ d) Br^- e) Br2 f) Co Please explain as well thanks.

The net ionic equation for the reaction between aqueous solutions of HF and KOH is.... a) HF + KOH ---> H2O + K^+ + F^- b) HF + OH^- ---> H2O + F^- c) HF + K^+ ----> H2O + KF d) H^++ OH^- ----> H2O e) H^+ + F^- + K^+ + OH^- ---> H2O + K^+ +F^-

Identify the most common reaction conditions for the dehydrationof 2,3-dimethyl-2-pentanol. Select all that apply. The presence of a platinum catalyst. The presence of excess H2O. The presence of acetone. The presence of a base catalyst. The presence of an acid catalyst. The presence of heat.

Given the following half-reactions and their respective standardreduction potentials 1.) Cu3+ + 2e- ---> Cu+....E1= 1.128V 2.)Cu2+ + e- ---> Cu+....E2=0.15V 3.) Cu2+ + 2e- --->Cu(s)....E3=0.34V 4.) Cu3+ + 2e- ---> Cu+....E4=0.52V calculate the standard reduction potential for the reduction half-reaction of Cu(III) to Cu(II). Cu3+ + e-

Part A What is the electron-domain(charge-cloud) geometry of IF5? Enter the electron-domain geometryof the molecule. Part B What is the molecular geometry of IF5? Enter the molecular geometry of the molecule.

Identify the most and the least acidic compound in each of the following sets. a) p-cyanobenzoic acid b) benzoic acid c) p-aminobenzoic acid: a) acetic acid: b) fluoroacetic acid: c) chloroacetic acid a) difluoroacetic acid b) fluoroacetic acid c) trifluoroacetic acid:

Identify the solute and solvent in each of the followingsolutions. a. salt (NaCl) in water WATER: SALT: b. air (a solution of 78% N2, 21% O2, and various othergases) N2: O2: c. a solution of 27% methanol and 73%water METHANOL: WATER: d. steel (an alloy of 95% iron, 1.5% carbon, and 3.5%manganese) IRON: CARBON: e.CO2(g) in water CO2: WATER:

Hydrazine, N2H4, may react with oxygen to form nitrogen gas andwater. N2H4 (aq)+ O2 (g) ----> N2 (g) + 2H2O (l) If 3.95 g of N2H4 reacts and produces 0.450 L of N2, at 295 K and1.00 atm, what is the percent yield of the reaction?

Choose the correct hybrid orbital diagram for TeF, which correctly shows valence electrons in this molecule. Orbital labels have specifically been omitted. .Te... Part A 17 1 1 1 1 1 1 11 161

3. Complete the table below. It contains information that you will use in Part 1 of the experi ment. Since Fe SCN, you should assume that all of the KSCN forms FeSCN. Show your work below the table beside the letter corresponding to each blank cell. Table 1 Standard Solutions Tube 0.20 M Fe(NO), 0.00050 M KSCN 0.10 M HNO, moles (SCN) (mL) (mL)

Part E Calculate the pH of a 0.10 M solution of hypochlorous acid, HOCI. K of HOCI is 3.5 108. Express your answer numerically using two decimal places. pH , a, AE, Submit Hints My Answers Give Up Review Part reset shortcuts help Part F Calculate the pH of a 0.10 M solution of HCI. Express your answer numerically using two decimal places. VD, ,

2. A nuclear power station is situated in Coal Valley, which is a roughly rectangular valley that is 5 km long, 2 km wide, and 200 m deep. You have been asked to evaluate the effects of a worstcase scenario where the reactor housing fails, and radiation is released to the atmosphere. In your evaluation, you determine that 120 kg of iodine131 (A

What is the Kw of pure water at 50.0C, if the pH is 6.630? A) 5.50 10-14 B) 2.34 10-7 C) 2.13 10-14 D) 1.00 10-14

The members of which pair are most similar in color? A. chlorine, Cl2(g), and bromine,Br2(l) B. silver chloride, AgCl(s), and silver sulfide,Ag2S(s) C. copper(II) chloride, CuCl2(s), and calciumchloride, CaCl2(s) D. potassium permangenate, KMnO4(aq), and iodine,I2(g) The answer is D. I need an explanation why based on periodic trends, on trends in

At the melting temperature of water, which of the followingstatements is true? - The value of T?S must be greater than the ?H component. -The reaction is spontaneous because ?H is greater thanT?S. -The value of T?S must equal the value of ?H. -There is not enough information to answer this question.

A) How many lone pairs are on the central atom in BCl3? Express your answer numerically as an integer. B)How many lone pairs are on the central atom of BrF3? Express your answer numerically as an integer.

What mass (in g) of NH3 must be dissolved in 475 g of methanolto make a 0.250 m solution? A. 2.02 g B. 4.94 g C. 1.19 g D. 8.42 g E. 1.90 g Determine the vapor pressure of a solution at 25C that contains76.6 g of glucose (C6H12O6.) in 250.0 mL ofwater. The vapor pressure ofpure water at 25C is 23.8 torr and the density of water is 1g/mL. A. 70.8

If the pKa of HCHO2 is 3.74 and the pH of an HCHO2/NaCHO2solution is 3.89, which of the following is TRUE? a. [HCHO2] < [NaCHO2] b. [HCHO2] = [NaCHO2] c. [HCHO2] > [NaCHO2] d. HCHO2 is a strong acid and therefore cannot have a pKa of3.74. e. It is not possible to make a solution of this pH from HCHO2and NaCHO2. Explanation:

The isotope 42 21 Sc is unstable. This is predictable because ___________________________________________. Answer a. the number of neutrons is too small in relation to the number of protons b. the mass number is too large c. Sc isotopes are all unstable d. the atomic number is too large e. the number of neutrons is too large in relation to the

If Ka of HXO3 is > than Ka of HZO3 at 25C, then it is mostlikely that.. a. X is more electronegative than Z b. X exhibits a higher oxidation state than Z c. the H?X bond is weaker than the H?Z bond d. HXO3( aq ) + ZO3?( aq ) ? XO3?( aq ) +HZO3( aq ) is reactant-favored at 25C e. Z is larger than X c and d are incorrect

iodination is electrophilc aromatic substion reaction in which electrophile is Iodonium (I^+) , it will updatined by the reaction of sodium hypochlorite (NaOCl) with iodide ion (NaI), which is strong electrophile that reacts quickly in an electrophilic aromatic substution reaction. Explain your reasoning.

How many sodium ions are contained in 99.6 mg of Na2SO3? Themolar mass of Na2SO3 is 126.05 g/mol. A) 9.52 1020 sodium ions B) 1.52 1027 sodium ions C) 2.10 1021 sodium ions D) 4.76 1020 sodium ions E) 1.05 1021 sodiumions

How many moles (of molecules or formula units) are in each sample? Express your answer to four significant figures and include the appropriate units. 32.15 g CF2CL2 24.6 kg Fe (NO3)2 0.6773 g C8H18 188 kg CAO

HI is considered an acid because A) it is a polar molecule. B) it can dissolve in water. C) it produces hydronium ions in solution. D) it produces hydroxide ions in solution.

Predict the products of the following DielsAlder reactions, giving a reason for your choice. Include stereochemistry where appropriate. MeO, COOH 0.8 O NH

Identify the hybrid orbitals on all atoms in the moleculeCH 2 O. The H atoms in CH 2 O contain the following. 1 sp hybridorbital,1 sp 2 hybrid orbital, 1 sp 3 hybridorbital,2 sp hybrid orbitals,2 sp 2 hybridorbitals,2 sp 3 hybrid orbitals,3 sp hybrid orbitals,3 sp 2 hybrid orbitals,3 sp 3 hybrid orbitals, no hybridorbitals The C atom in CH 2 O

0c I. H

Your lab partner combined chloroform and acetone to create asolution where the mole fraction of chloroform, Xchloroform, is0.171. The densities of chloroform and acetone are 1.48 g/mL and0.791 g/mL, respectively. Calculate the molality of the solution. Calculate the molarity of thesolution.

Determine el Kb de CN a 25C. El Ka para HCN es 4.9 x 1010. O a. O b. . O d. 2.3 x 109 1.4 x 105 2.0 x 105 4.9 x 1014 e. 3.7 x 107

H3C HC H CH3 final products H . . . H c) Use curved arrows to show the deprotonation of the alcohol. H3C H3C H H H 0H CH3,Complete the mechanism for the electrophilic addition a) Use curved arrows to show the attack on the electrophilic hydrogen by the alkene. H3C H3C H HOH CH3 when the alkene is treated with water in acid. b) Complete the

Complete the equations for the following equilibria and calculate Keq where the Keq expression includes HO. Be sure to enter Keq in proper scientific notation. (a) ammonia (acting as a base) reacts with water (acting as an acid) NH,H,O (b) ammonia (acting as an acid) reacts with water (acting as a base) NH,H,O Species pKa 35 9.25 There is a hint

(a) Complete the aldolase reaction of glycolysis by drawing the product or products. 203POCH2 H H OH OH H CHOPO3 OH al dolase HO H CHOP CH H C C O OH CHOP (b) Which enzyme catalyzes the next reaction, interconverting two trioses enolase triose phosphate isomerase phosphoglucose isomerase glyceraldehyde 3phosphate isomerase phosphoglycerate mutase

please state wether each on is exothermic or endothermic

Determine whether each described process is endothermic or exothermic. A process with a calculated negative q Exothermic A process with a calculated positive q Endothermic Wood burns in a fireplace Choose... Ice melts into liquid water Endothermic Acid and base are mixed, making test tube feel hot Choose... Solid dissolves into solution, making

What factors govern the position of an IR absorption peak Select one or more correct answers. strength of the bond effect of a magnetic field on nucleus spin masses of the atoms involved in the bond the type of vibration being observed

Determine which ions are present in each of the compounds. CrO3 0 C 0 0 C crt Na, PO PO Na Na, p 0 p PO SrSO SO Sr so So, Sr Sr PbCl PbCl Pb Pb4 C1 CI at AI(CIO), C AP 0 CIO CIO AI,Name the compounds. Spelling counts. HSO4 (aq) Sulfuric acid CrS3 CCI Chromium sulfide Incorrect Tetrachloromethane Incorrect

Determine the electron geometry for each molecule. Drag the items into the appropriate bins. Linear CH,Br SBr BCls PF Trigonal planar Tetrahedral Reset Help Trigonal bipyramidal,Determine the molecular geometry for each molecule. Drag the items Into the appropriate bins. Trigonal planar Submit Request Answer Linear PF BC1 CH Br Tetrahedral SBr

Describe the solubility of Al(OH)3 with respect to pH. A) insoluble at low pH,insoluble in pHneutral solution, and soluble at high pH B) soluble at low pH, insoluble in pHneutral solution, and insoluble at high pH C) soluble at low pH, insoluble in pHneutral solution, and soluble at high pH D) insolubleinsoluble at low pH, in pHneutral solution,

The data below were collected for the following reaction CH3CI(g)3C12(g)CC14(g)3HCl(g) A) Calculate the value of the rate constant, k B)What is the overall order of the reaction (CH,Cl (M) CH3CI(M) 0.050 0.100 0.100 0.200 CHCl(g) 3Cl(g) CCL (g) 3HCI(g) C12(M) 0.050 0.050 0.100 0.200 Ch2 (M) Initial Rate (Ms) 0.014 0.029 0.041 0.115

4. Construct models for both R2chlorobutane and its enantiomer S2chlorobutane. For each of the types of structures shown, fill in the necessary atoms to draw both stereoisomeers. Wedge Newman Fischer (R)2chlorobutane H CI CH3 H CH3 f CHCH3 (S)2chlorobutane I CI H I CH3 CH3 CHCH3

Constants Periodic Table Element X reacts with element Y to give a product containing X ions and Y ions. You may want to reference (Pages 7394) Chapter 3 while completing this problem. Part A Indicate whether elements X and Y are likely to be metals or nonmetals.,Part B What is the formula of the product Express your answer as a chemical formula.

What is the enthalpy change for this reaction per mole of O3(g)?

Quiz 6 Problem 5.41 Problem 5.41 Assignments Ozone, Os(g), is a form of elemental oxygen that is important in the absorption of ultraviolet radiation in the stratosphere. It decomposes to O(g) at room temperature and pressure according to the following reaction 20s (g) 302(g) AH 284.6 kJ Part A What is the enthalpy change for this reaction per

The enzyme fumarase catalyzes the conversion of fumarate to malate according to OOC H 1.0 fumarate 5.0 COO H Number 7 HO Number OOC Use the data in the table above to determine the values of Rmax (the maximum rate of the enzyme, often called the maximum velocity, Vmax) and KM (the MichaelisMenten constant of the enzyme). Answer the three parts

Self Assessment 15.3 Consider the given acid ionization constants. Identify the strongest conjugate base. Acid K HF (aq) 3.5x104 HC7H5O2 (aq) 6.5x105 HClO,(aq) 1.1x102 HCH3O (aq) 1.8x105 Part A ClO (aq) F (aq) CH3O2 (aq) C7H5O2 (aq) Submit My Answers Give Up

21 Book Print ferences Choose the most appropriate reagent(s) for the first step of the synthesis. reagent(s) A C E HBr NaOCHCH3 KOC(CH3)3 Br B D X 50 HSO4HO HSO4, HgSO4, HO OH

Draw the major organic product for the following FriedelCrafts acylation reaction CH,CH,CH,COCI FeCl, to,Draw the major organic product(s) for the following reaction. Multiple products may be drawn in one box, in any order. Use an expanded octet around sulfur to avoid formal charges. fuming HSO4

A person is considering placing a bet of $25 on team to win a sporting event. The odds-makers put that teams chance of winning at p=.4. The payoff from a win is $60. The net expected value of the bet is (a) $5 (b) $1 (c) $2 (d) $5

Determine the product or products for each reaction (A-D). Product choices on the left, reactions A-D on the right. Not sure if all product choices are used or which one(s) go where.

H TSO H OTS H H A. B.. C.. D. HO HO TSO H H OH TSCI pyridine SOCI pyridine KI HCI ZnCl

Draw the condensed structure of 3-methyl-1-butyne. how do write in a condensed structure. chem is so hard ): mehh

Draw the condensed structure of 3methyl1butyne. planation H3C CH3 CH C Previous Give Up View Solution Try Again Next First, use the name to determine the longest chain of carbon atoms. In this compound, the longest chain contains four carbon atoms (butyne). The yne suffix indicates that a carboncarbon triple bond is present. Second, add in the

4) Determine the product of the following reaction. I A) I I A) I C) III 5) What is (are) the product(s) of the following reaction 1. KMnO4 2. HO, HO OH OH A) I A) Only I H Lindlars cat. B) II 11 OH OH Compound A B) II C) III 6) Which of the following is (are) formed by ozonolysis of compound A B) Only I and II OH OH B) II 7) What is the starting

Can someone please help me with the regioselectivity?

Draw one enantiomer of the major product of the folllowing DielsAlder reaction. (Use wedgedash bonds to indicate the orientation of substituents in the product. Hydrogen atoms on chirality centers must be shown explicitly.) Illi H HD Incorrect. Your regioselectivity is incorrect. Consider the charge distributions of the diene and dienophile to

Draw the aromatic compound formed in the following reactionsequence: 1-Phenylethanone

Draw the aromatic compound formed in the following reaction sequence Hint 1Phenylethanone LDA is lithium diisopropylamide 1. LDA 2. Br Previous Give Up View Solution Check Answer Which protons on 1phenylethanone have the lowest pKa (i.e., which protons are more acidic) Next Exit

Please answer this question in biochemisty

Draw the hydrogen bond(s) between the following two sets of bases. The letter R represents the rest of the nucleotide. The bases are positioned approximately as they would be in a DNA double helix. To indicate a hydrogen bond, simply draw a regular single bond between the atoms. Be careful not to modify the existing atoms or bonds in any way, nor

Determine the product(s) formed in the following reactions. Determine the product(s) formed in the following reactions. . B. H3C CH3 Hill.... OH H3C CH3 H 1 C 2 H2O OH CH3 OH CH3 CH3 1 HC CH3 AFFR 2 H2O OH CH3 OH CH3 CH3 OH CH3

Which of the following describe chemical properties Check all that apply. Titanium is less dense than iron. Mercury is a liquid at room temperature. Antacid tablets neutralize stomach acid. Water freezes at 0 C.

Construct the expression for Kc for the following reaction. FeO (s) H(g) Fe(s) HO(g) Drag the tiles into the numerator or denominator to form the expression. FeO 2H Fe Kc 1 2FeO H HO FeO Fe 2HO RESET H 2Fe HO

Which of the following contains a 77 bond Check all that apply. HO 03 HCN CO3 Which of the following contains a delocalized T bond Check all that apply. oooo HO 03 HCN CO3

Each of the following compounds, A (ethanimine) and B (acetonitrile), protonates on nitrogen. Draw the conjugate acid of each. Select the strongest acid and the strongest base from the four species. H3CCH A HN Strongest acid A AH B BH AH Strongest base A AH B BH H3C B FN BH

Determine the point group of the molecule shown below.(Your answer should have the correct formatting for point groups, e.g., C4v) A. B. C.

Draw the product of the following reaction

Click the draw structure button to launch the drawing utility. Draw the product of the following reaction H KCrO7 HSO4, HO draw structure ...