Chemistry Questions and Answers August 01, 2020

Consider the following reaction: N2 (g) + 3H2 (g) <----> 2NH3 (g) Complete the following table. Assume that all concentrations are equilibrium concentrations in . T(K) [N2] [H2] [NH3] [Kc] 500 0.115 0.105 0.439 ---- 575 0.100 ----- 0.134 9.6 775 0.130 0.145 ----- 0.0584 Find Kc at 500 K. Find [H2] at 575 K . Find [NH3] at 775 K.

Choose the compound below that contains at least one polarcovalent bond, but is nonpolar. HCN CF 4 SeBr 4 ICl 3 Both B and C are nonpolar and contain a polar covalent bond.

Describe how you would prepare 2.00 L of each of the following solutions. (a) 0.255 M NaOH from solid NaOH Place g NaOH in a L volumetric flask; add water to dissolve the NaOH, and fill to the mark with water, mixing several times along the way. (b) 0.255 M NaOH from 1.00 M NaOH stock solution Add mL of M NaOH stock solution to a L volumetric

Calculate the frequency of the light emitted when an electron ina hydrogen atom makes each of the following transitions. a) n =4? n =3 Express the frequency in inverse seconds ? 1 b) n =5? n =1 Express the frequency in inverse seconds. ? 2 = c) n =5? n =4 Express the frequency in inversesecond s. ? 3 d) n =6? n =5 Express the frequency in inverse

Complete the following sentences on predicting the relativeentropy of a system. The words are: decreases, equal to, increases, less than,greater than 1. Temperature Changes: for a givensubstance, S __________as the temperatureincreases. 2. Physical States and Changes ofState: as the freedom of motion of thesubstance ____________ , the entropy

Complete and balance each equation. If no reaction occurs, writeNOREACTION. a) NaNO3( a q )+KCl( a q )? b)NaCl( a q )+Hg2(C2H3O2)2( a q )? c)(NH4)2S( a q )+SrCl2( a q )? d)Al2(SO4)3( a q )+AgNO3( a q )? Thanks

Chlorofluorocarbons photodissociate to produce chlorine atoms, Cl; which have been implicated in decreasing the concentration of ozone, O3, in the stratosphere. The decomposition of the ozone follows a reactiong sequence of O3+Cl: --> ClO +02 ClO + O ---> Cl+ O2 What role ( factor affecting reaction rates) do chlorine atoms have in increasing the

Classify these 3 elements by whether they get oxidized or reduced in the reactions shown here:Calcium Oxygen Flourine Lithium 2Ca (s) + O2 (g)= 2CaO (s)F2 (g)+2Li (s) = 2LiF (s)

choose the reaction that illustrates delta H *f for Ca(NO3)2. a.) Ca (s) + N2 (g) + 3O2 ---> Ca(NO3)2 (s) b.) Ca2 (aq) + 2 NO3- (aq) ---> Ca(NO3)2 (aq) c.) Ca (s) + 2N (g) + 6O (g) ---> Ca(NO3)2 (s) d.) Ca(NO3)2 (aq) ---> Ca2+ (aq) + 2NO3- (aq) e.) Ca(NO3)2 (s) ---> Ca(s) + N2 (g) + 3 O2 (g)

Price Level LRAS Y Output (b) SRAS AD,The RussiaUkraine war triggers a surging of crude oil price to a record high that leads to a negative supply shock of an economy. If the economy is currently at the fullemployment output, how does it affect the aggregate price and real output level in the short and longrun if the central bank does not carry

Choose the paramagnetic species from below: A.) Cd 2+ B.) O 2- C.) Nb 3+ D.) Ca My professor posted the answer key and says it's C, I don'tunderstand why it's C and not A.

Choose the correct description(s) of reverse transcriptase. Reverse transcriptase is a DNA polymerase that adds dNTPs to aDNA primer. Reverse transcriptase is a DNA polymerase that adds dNTPs to aDNA primer while moving in reverse direction along the templatestrand (i.e. from 5' to 3') Reverse transcriptase is a DNA polymerase that

Catalysts can be classified as either homogeneous or heterogeneous. Platinum is used to catalyze the hydrogenation of ethylene: H2(g)+CH2CH2(g)=>CH3CH3(g) (Pt solid) Chlorofluorocarbons (CFCs) catalyze the conversion of ozone () to oxygen gas (): 2O3(g)=>3O2(g) (CFC gas) Magnesium catalyzes the disproportionation of hydrogen peroxide to produce

Consider the formation of the three solutionsshown in the table. Type of Interaction Strength of Interaction Solution A Solution B Solution C solute-solute weak weak strong solvent-solvent weak strong strong solute-solvent strong strong weak Rank the solutions A, B, and C from the most exothermic to the mostendothermic. Rank the enthalpy of

The combustion of pentane, C5H12, occurs via the reaction C5H12(g)802(g)5CO2(g)6H2O(g) with heat of formation values given by the following table Substance AHof (kJmol) C5H12 (g) 119.9 CO2(g) 393.5 H2O(g) 241.8 Calculate the enthalpy for the combustion of 1 mole of pentane.

Chlorination of alkanes can produce a multitude of products. Determine the number of mono chlorinated and dichlorinated products that can be obtained by chlorination of 3-methylpentane. (Consider constitutional isomers only. Do not count stereo isomers.)

Y Name the aldehyde displayed below. Enter the name. View Available Hint(s) Submit Part B The ketone displayed below could potentially have any of the names listed. Choose the name that follows IUPAC guidelines. View Available Hinti 3methyl5aeptanone 5ethyl3hexanone 5methy3heptasone O2ethyl4hexanone CO 6ethyl5methyl3 pentanone

9) 3.25 kcal is the same amount of energy as A) 3.25 J B) 0.777 J C) 777 J D) 13600 J E) 13.6 J Answer D. Objective 2.1 Global Outcomes GO4 mult from all of the following except

9. What is the correct IUPAC name for the following structure nd 10. Draw in the plane of symmetry in the following compound. 11. Is the following a meso compound X

8. Consider the reaction below and determine which of the following statements is true. 1. BH3, THF 2. HO2, HO, HO A) The primary alcohol is formed since this type of reaction always leads to the anti Markovnikov product. B) The secondary alcohol is formed since this type of reaction always leads to the Markovnikov product. C) The primary alcohol

Which of the following conjugate acid-base pairs will function as a buffer? HBr/OH HF/F HCl/Cl H 2 O/OH

Calculate the pH of the resulting solution if 25.0 mL of 0.250 MHCl(aq) is added to (a) 30.0 mL of 0.250 M NaOH(aq). pH___________(b) 35.0 mL of 0.300 M NaOH(aq). pH___________

Consider the following reaction 2NO(g)02(g)2NO2(g) The data in the table show the equilibrium constant for this reaction measured at several different temperatures. Temperatures Kp 170K 3.8103 180K 0.34 190K 18.4 200K 681 Part A Use the data to find AHrxn and ASrxn for the reaction. i found AHrxn 114 kJ but i dont know how to get ASrxn. please

9. Predict the product of this reaction CHCH0CCHCCH A. B. CHCHOCCHCOOH CH,Ph C. PhCHCHCOOH D. 10. Identify the amino acid phenylalanine. NH A. B. CHCHCOOH Ph NH CHUCPH CHCHCOOH NH3 PHCHCCOO H OH A. HCO C. D. CHCHCHCOOH NH Ph 11. What is the product of the reaction shown HyCO CECCHCH3 B. HCO C. HCO D. HCO 1. NaOEIEtOH 2. PhCHBr 3. HOA H HO, HSO4

nevermind on answering this question. Thanks

A)Identify the necessary parts to build a calorimeter. Select one or more Cover Thermometer Conductivity probe An exterior paper cup An interior paper cup An interior styrofoam cup An exterior styrofoam cup B) Suppose you mix 100.0 g of water at 25.0 oC with 75.0 g of water at 71.1 oC. What will be the final temperature of the mixed water, in oC

Based on the activity series, which one of the reactions below will occur A) Pb (s) Nil2 (aq) Pb12 (aq) Ni (s) C) Fe (s) ZnCl2 (aq) FeC12 (aq) Zn (s) E) None of the reactions will occur. (B) SnBr2 (aq) Cu (s) CuBQ (aq) Sn (s) D) Mn (s) NiC12 (aq) MnC12 (aq) Ni (s)

Arrange these species by their ability to act as anoxidizing agent.

Arrange these species by their ability to act as an oxidizing agent. Best oxidizing agent Au Fe Ni Na Poorest oxidizing agent Answer Bank 0

www.Crowdmor com Base Crossword Puzzle ACROSS 1 A neutral solution has a pH of 6 The products of the the reaction between an acid and a base are a salt and 8 Another term for a base is a(n) 9 H is also known as a 12 A reaction that gets hotter is called acid 13 H2SO4 is known as 15 The strongest acid has a pH of 17 Bases tend to taste 18 Bases

According to the Star Trek Fifth Interstellar Geophysical Conference Standard version of the periodic table, there are 140 known elements. In what group of the periodic table would you place element 117, topaline which is reported to have been discovered on Ganymede in 2021 group 17 (7A) If the symbol for topaline is To, predict the formula of a

Can this alcohol be synthesized selectively by hydroboration-oxidation of an alkene?

CH3 CH3CHCHCHCHCHOH Can this alcohol be synthesized selectively by hydroborationoxidation of an alkene If yes, draw the structure of the alkene. If no, signify this by drawing ethane.

7-Cyclopentyl-6-oxoheptanal in the presence of base undergoes a cyclic aldol reaction. Complete the mechanism for the following reaction by adding any missing atoms, bonds, charges, nonbonding electron pairs and curved arrows.

7Cyclopentyl6oxoheptanal in the presence of base undergoes a cyclic aldol reaction. omes aro 0H Complete the mechanism for the following reaction by adding any missing atoms, bonds, charges, nonbonding electron pairs and curved arrows. H que HE H OH que H H 0 H H HO

Add hydrogen atoms to the following alkynes and give their systematic names. Tip: Add hydrogen atoms by clicking on the button, then clicking on an existing carbon atom.

Add hydrogen atoms to the following alkynes and give their systematic names. Tip Add hydrogen atoms by clicking on the H button, then clicking on an existing carbon atom. H

07 Question (3 points) Consider the following reaction between ethoxide (CH3CHO) and propionyl chloride CH3CH(CO)CI. HC 1st attempt Part 1 (1 point) CH Choose one O HOMO O LUMO Which orbital in propionyl chloride will be involved in the first step of the reaction between these two compounds e See page 365 See Periodic Table See Hint,Part 2 (1

19. The number of hydrogen atoms in 0.050 mol of C3H8O3 is (A) D) 3.0 x 1022 H atoms. 1023 H atoms. B) 1.2 x E) 2.4 x 1023 H atoms. 38.7 4.8 x 1023 H atoms. none of the above. 70067 21

could you please help me with these questions. thank you so much

36. What is the major product of this reaction CuLi A A 1. 2. ve ye A 1.CH,OH,ON 2. Cold dil aq HCI 37. Which reaction is the major product of this reaction sequence B se B C D 38. What is the product of this reaction HO, NCH A B OH D C D C

Classify the following by the sign of delta U for the system: the following can be classified into these three categories (negative,positive, not enough data) 1. The system contracts and the surroundings get cooler. 2. The system expands and the surroundings get cooler. 3. The system contracts and the surroundings get hotter. 4. The system expands

What is the conjugate base forHCH 3 CO 2 and the conjugate base forH 3 PO 4 ? Write the chemical equation for how each of the followingbehaves in water . Include states-of-matter underthe given conditions in your answer. H 2 C 2 O 4 BO 3 3?

Consider the following unbalanced equation for the combustion of hexane aC6H14(g)BO2(g)yCO2(g)6H2O(g) A. Balance the equation. B. Determine how many moles of O2 are required to react completely with 5.2 moles C6H14

Consider the reaction: SO2Cl2(g) SO2(g) + Cl2(g) Kp = 2.91 103 at 298 K In a reaction at equilibrium, the partial pressure of SO2 is 132 torr and that of Cl2 is 304 torr. What is the partial pressure of SO2Cl2 in this mixture? The answer is 0.0181 torr. why is the answer such a small number?! i keep getting numbers closer to 9?

Consider the reaction A(g)12B(g)2C(g). A.) When C is increasing at a rate of 3.0x102 Ms1, how fast is B decreasing Express your answer using two significant figures. B.) How fast is A decreasing Express your answer using two significant figures.

Consider the reactionNH 4 HS(s) NH 3 (g) +H 2 S(g) At a certain temperature,K c = 8.5x10 -3 . A reaction mixture at thistemperature containing solid NH 4 HS has [NH 3 ]= 0.166 M and [H 2 S] 0.166 M. Will more of the solid formor will some of the existing solid decompose as equilib rium isreached?

You have decided to buy a new tool for $5,500 and agreed to pay in 30 equal monthly payments at 6% APR on the unpaid balance. How much do you pay monthly?

Once the concentration of the common ion is increased:(Selectthe correct answer below:) A:the solubility of the ionic solid increases B: the solubility of the ionic solid decreases C:the solubility of the common ion increases D: the solubility of the common ion decreases

Consider the following reaction 2 NO(g) 2 N(g) O(g) part A Express the rate of the reaction in terms of the change in concentration of each of the reactants and products. Part B In the first 11.0 s of the reaction, 1.5x102 mol of O2 is produced in a reaction vessel with a volume of 0.310 L. What is the average rate of the reaction over this time

Consider this molecular-level representation of a gas. If thepartial pressure of the diatomic gas is 0.330 atm, what is thetotal pressure? HINT: One way to solve this problem is to find the mole fractionof the diatomic gas. There is a total of 14 independently movinggas particles in this sample. Of those 14 particles, 3 arediatomic. Thus, the mole

Consider the following reaction, equilibrium concentrations, and equilibrium constant at a particular temperature. Determine the equilibrium concentration of H2O(g): [C2H4]eq = 0.015 M, [C2H5OH]eq = 1.69 M C2H4(g) + H2O(g) C2H5OH(g) Kc = 9.0

Determine the half-life of a nuclide that loses 38.0% of itsmass in 407 hours. Determine the half-life of a nuclide that loses38.0% of its mass in 407 hours. 590 hours 204 hours 281 hours 291 hours 568 hour

The combustion of octane, C8H18, proceeds according to the reaction shown. 2C8H18(1)2502(g) 16CO2(g)18H2O(1) If 562 moles of octane combusts, what volume of carbon dioxide is produced at 38.0 C and 0.995 atm V

Chiral D-sugars rotate plane-polarized light: a) clockwise b) counterclockwise c) +20.0 degrees d) in a direction that cannot be predicted but must bedetermined experimentally e) since they are optically inactive.

Chemistry of Volcanic Gases: Balance the following reactionsthat occur among volcanic gases. Place coefficient directly infront of the compound, leaving no spaces. 3SO2(g) + 3O2(g) arrow 2SO3(g) H2S(g) + O2(g) arrow SO2(g) +H2O(g) H2S(g) +SO2(g) arrow S8(s) +H2O(g)

Balance the following redox reaction and type the coefficients for each of the species in the balanced reaction. 2Al(s) 3 F (g) 2Al (aq) 6 F (aq) Indicate the reducing agent and the oxidizing agent. (Write the species with charge and state.) Reducing agent F (aq) TAP (aq) Oxidizing agent Remember, charges and masses (number of atoms or ions of

to answer the question, interpret the following Lewis diagram for SeBr2O

Please note that geometry refers to the molecular or ionic geometry. A. The Lewis diagram for CO is OC0 Recall that for predicting geometry, double and triple bonds count as only one electron pair. The electronpair geometry around the C atom in CO is There are lone pair(s) around the central atom, so the geometry of CO is B. The Lewis diagram for

Balance the following oxidationreduction reaction Fe(s) Na (aq) Fe (aq) Na(s) Express the coefficients as integers separated by commas (e.g., 4,1,3,2, where 1 indicates the absence of a coefficient). submit hints my answers show answer review part Part C Balance the following oxidationreduction reaction K(s) HO(1) KOH(aq) H(g) Express the

Assign formal charges to each atom in the three resonance forms of NO. NN0 NN0 NN Which resonance structure contributes the most to the overall structure of NO A 1 2 Answer Bank 0 3 2 1 4,Which resonance structure contributes the most to the overall structure of NO NN0 NN0 NN0

The atomic weight of copper, Cu, is listed as 63.546. Which of the following statements are untrue Check all that apply. The dominant isotopes of Cu must be 63 Cu and 64 Cu. Copper is a mixture of at least two isotopes. The number of electrons in the copper atoms is independent of atomic mass. All the copper atoms have 29 protons in the nucleus.

Balance the equation. equation U(s) (3)F (g) UF, (g) Write the reactionquotient expression, Qc, for this reaction. UF6 lc F1 O,Write the equilibriumconstant expression for the reaction shown in terms of A, B, C, and D. A(g) B(g) 2 C(g) D(g) Note that K, which is sometimes symbolized as K or Keq, denotes that the equilibrium constant is

Arrange the following gases in order of increasing density (highest density at the bottom of the list) under the conditions given. Assume that the volume of the container is not fixed. Helium at 1 atm and 273 K Neon at 2 atm and 73 K Neon at 1 atm and 273 K Neon at 2 atm and 273 K Place these in the proper order. Do you know the answer

An aspirin tablet contains 325.0 mg of aspirin, which has the molecular formula, CHO4 1st attempt Part 1 (1 point) How many moles of aspirin are in the tablet moles Part 2 (1 point) How many molecules of aspirin are in the tablet molecules 14 OF 23 QUESTIONS COMPLETED 0423 l See Periodic Table See Him SUBMIT A

Be sure to answer all parts. Balance the following skeleton reaction and identify the oxidizing and reducing agents Include the states of all reactants and products in your balanced equation. You do not need to include the states with the identities of the oxidizing and reducing agents. NO(g) NO3(aq) NO (aq) The oxidizing agent is The reducing

For the atoms that do not follow the octet rule state how many electrons surround these atoms. Express your answers as integers separated by commas. N NO, N BF3, N ICl2?, N OPBr3, N XeF4 =

F ci d B 0 Br 0 P Br LL Br

What is the average rate of the reaction between 10 and 20s?

Chapter 13 Rates of Reaction Exercise 13.32 Exercise 13.32 Consider the following reaction NO(g) NO(g) O(g) The following data were collected for the concentration of NO 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 0.606 100 What is the average rate of the reaction

An amino acid is drawn below. H3N H3C CH CH CH3 H Identify the amino acid. Isoleucine Leucine Alanine Glycine Identify the threeletter abbreviation. 2000 Gly Ala lle Leu Identify the oneletter symbol. O A,An amino acid is drawn below. H3N CH3 H Identify the amino acid. Isoleucine Glycine Alanine Leucine Identify the threeletter abbreviation. Ala

Consider the following generic reaction A2BC3D, with AH 170 kJ. 1. 3A6B 3C9D 2. C3DA2B 3. 12 C 32 D12 A B

Conceptual Connection 17.4 Part A Which statement is true regarding the sublimation of dry ice(solid CO2)? ? H is positive,? S is negative,and ? G is positive at all temperatures. ? H is positive, ? S ispositive, and ? G is positive at low temperatureand negative at high temperature. ? H is negative,? S is positive,and ? G is negative at all

Determine the freezing point of a solution that contains 78.8 gof naphthalene (C10H8, molar mass = 128.16 g/mol) dissolved in 722mL of benzene (d = 0.877 g/mL). Pure benzene has a melting point of5.50C and a freezing point depression constant of 4.90C/m.

Determine which complex of the electron transport chain(respiratory chain) each phrase describes. (Coenzyme Q is alsocalled ubiquinone or ubiquinol, depending on whether it is inoxidized or reduced form.) Complex I: Complex II: Complex III: Complex IV: Here are the choices that need to be put in the correctcomplex: 1) NADH-ubiquinone(NADH-coenzyme

Consider the decomposition of a metal oxide to its elements, where M represents a generic metal. M2O(s) 2M(s)+1/2O2(g) What is the standard change in Gibbs energy for the reaction, as written, in the forward direction? ????rxn= kJ/mol What is the equilibrium constant of this reaction, as written, in the forward direction at 298 K? ????= What is

A concentration cell consists of two Sn/Sn2+ half-cells. Thecell has a potential of 0.17V at 25 ?C. What is the ratio of the Sn2+ concentrations in the twohalf-cells? Express your answer using two significant figures. [Sn2+( o x )][Sn2+( r e d )=

Complete this equation to show how pyridine, C5H5N, acts as aBrnsted-Lowry base in water. C5H5N+H2O--->

Consider these reactions, where M represents a generic metal. 2M(s)6HCl(aq)2MCI3(aq)3H2(g)AH1668.0 kJ HCl(g) HCl(aq) AH274.8 kJ H2(g)Cl2(g) 2HCl(g) AH31845.0 kJ MC13(s)MC13(aq) AH4336.0 kJ Use the given information to determine the enthalpy of the reaction 2M(s)3C12(g)2MC13(s)

Consider this molecular-level representation of a gas. If the partial pressure of the diatomic gas is 0.480 atm, what is the total pressure?

Choose the reactions that are spontaneous as written. Multipleanswers: You can select more than one option A Al 3+ + Au ? Al + Au 3+ B Ni + Cu 2+ ? Ni 2+ + Cu C 3Zn 2+ + 2Al ? 2Al 3+ + 3Zn D 2Ag + + 2H + ? H 2 ? + Ag E 3Cu + 2Al ? 3Cu 2+ + 2Al 3+ F 3Pb 2+ + 2Al ? 2Al 3+ + 3Pb

Choose an expression for the acid ionization constant( K a) for HCHO2 . K a=[H3O+][CHO2?][HCHO2] K a=[CHO2?][HCHO2] K a=[H3O+][CHO2?][H2O][HCHO2] K a=[H3O+][HCHO2][CHO2?]

Which of the compounds below undergoes solvolysis in aqueousethanol most rapidly? a)Cyclohexyl bromide b)methyl iodide c)3-iodo-3-methylpentane d)3-chloropentane

Complete the following oxidation reactions. Include the appropriate hydrogen atoms and charges.a. Use NAD+ as the oxidizing agent: b. Use FAD as the oxidizing agent:

OH O NAD H NADH H

Determine whether each of the following changes represents oxidation or reduction my answer oxidation Reducatin NO2 to NH3 gain of electrons FADH2 to FAD ,NAD to NADH, CH4 to CO2 ,Ag to Ag, CH3CHO to CH3CH2OH, CH3OH to CH4, N2H4 to N2

A certain weak base has a Kb of 7.80 10-7. What concentration of this base will produce a pH of 10.16? ______M

Draw the Lewis structure (including resonance structures) formethyl azide (CH3N3). For each resonance structure, assign formalcharges to all atoms that have formal charge. Draw the Lewis dotstructure for methyl azide. Include all hydrogen atoms andnonbonding electrons. Show the formal charges of all atoms.

Consider the following reaction: H2(g)+I2(g)?2HI(g) A reactionmixture at equilibrium at 175 K contains PH2=0.958atm,PI2=0.877atm, and PHI=0.020atm. A second reaction mixture, also at175 K, contains PH2=PI2= 0.614 atm , and PHI= 0.105 atm . 1) Is the second reaction in equilibrium? yes/no 2) If not, what will be the partial pressureof HI when the

Determine the minimum concentration of the precipitating agent onthe right to cause precipitation of the cation from the solution on the left. a) 4.0x10^-2 M BaNO3; NaF b) 9.0x10^-2 M CaI2: K2SO4 c) 1.9x10^-3 M AgNO3; RbCl

The data below show the concentration of AB versus time for thefollowing reaction: AB(g)?A(g)+B(g) Time (s) [AB] (M) 0 0.950 50 0.459 100 0.302 150 0.225 200 0.180 250 0.149 300 0.128 350 0.112 400 0.0994 450 0.0894 500 0.0812 Determine the value of the rate constant.Predict theconcentration of AB at 21 s .

Consider the following reaction:2CH3OH(g)+3O2(g)?2CO2(g)+4H2O(g) Each of the following moleculardiagrams represents an initial mixture of the reactants. (Figure 1)How many CO2 molecules would be formed by complete reaction in eachcase? (Assume 100% actual yield.) a)Express your answer as an integer b)Express your answer as an integer c) Express

(a) (c) CHOH (b) 0

For each electron in a ground-state Beryllium atom, select the set of quantum numbers that represents it. Check all that apply. n = 1, l= 0, ml= 1, ms= 1/2 n = 2, l= 0, ml= 0, ms= 1 n = 1, l= 0, ml= 0, ms= 1/2 n = 1, l= 0, ml= 0, ms= 1/2 n = 2, l= 0, ml= 0, ms= 1/2 n = 2, l= 1, ml= 0, ms= 1/2 n = 2, l= 1, ml= 1, ms= 1/2 n = 2, l= 0, ml= 0, ms= 1/2

Consider thereaction 2NO2( g )?N2O4( g ). Using the following data, calculate ? G ? at298 K . ? G ? ( N O 2 ( g ) ) =51.84 k J / m o l , ? G ? ( N 2 O 4 ( g ) ) =98.28 k J / m o l . I answered part A but need help with B. Part A is-5.40kJ Part B Calculate ? G at298 K ifthe partial pressures of N O 2 and N 2 O 4 are0.37 a t m and1.60 a t m

Consider thereaction: 2A( g )+B( g )?3C( g ). Determine the expression for the rate of the reaction withrespect to each of the reactants and products. Part B) When A is changing at a rate of-0.160 M?s?1 , how fast is B changing? Part C) How fast is C increasing?

Rate 1 3 t Rate Rate Rate st 1 1 2 1 C 1 2 2 t 2 3 3 t 1 C 1 C 1 C 3

What is the effective pH range of a buffer (relative to the pKaof the weak acid component)? What is the effective range of abuffer (relative to the of the weak acid component)? a) pKa4 b) pKa2 c) pKa3 d) pKa1

The compound NCl3 is nitrogen trichloride,but AlCl3 is simply aluminum chloride. Why? Choose all that apply. 1 AlCl3 is a molecular compound (two or more nonmetals),and therefore in its name prefixes indicate the number of each typeof atom-?so AlCl3 is aluminum chloride. 2 NCl3 is a molecular compound (two or morenonmetals), and therefore in its

Atomic orbitals developed using quantum mechanics 1) describe regions of space in which one is most likely to find an electron. 2) describe exact paths for electron motion. 3) give a description of the atomic structure which is essentially the same as the Bohr model. 4) allow scientists to calculate an exact volume for the hydrogen atom. 5) are in

The blue curve is the plot of the data. The orange line is tangent to the blue curve at t = 40 s.

For the reaction A products time and concentration data were collected. t(s) A (M) 0 0.52 20 0.43 40 0.35 60 0.29 80 0.24 100 0.20 The blue curve is the plot of the data. The orange line is tangent to the blue curve at t 40 s. A (M) 0.52 0.48 0.44 0.40 0.36 0.32 0.28 0.24 0.20 0.16 0 10 20 30 40 50 60 70 80 90 100 t(s) Approximate the

Arrange the compounds by boiling point. hexane Highest boiling point Lowest boiling point Answer Bank pentane neopentane,Classify each substance based on the intermolecular forces present in that substance. Hydrogen bonding, dipoledipole, and dispersion HO 8 CO H Dipoledipole and dispersion only HCI Answer Bank Dispersion only

CaCl (aq) 2AgNO3 (aq) Ca(NO3)2 (aq) 2AgCl (s) If 25.0 mL of a 2.00 M CaCl solution is used for the reaction shown above, how many moles of chloride ions were involved in the reaction mols Enter the answer

ANSWERQUESTIONS

Print stion 7 of 23 Calculator Periodic Table glucose Map Add coefficients to the following reaction summary to show the net results of glycolysis. You do not need add the water and hydrogen ions necessary to balance the overall reaction. If no coefficient is needed, leave the answer blank. ADP P NAD pyruvate ATP Gradeboo NADH Draw the

Suppose a piece of silver jewelry contains 5.11x1022 atoms of silver (Ag). Part A How many dozens of silver atoms are in the piece of jewelry Express your answer numerically in dozens. ( View Available Hint(s) 4.261021 dozen Submit Previous Answers V Correct,How many moles of silver atoms are in the piece of jewelry Express your answer

Alanine is shown below as a Fischer projection. Identify the stereochemistry configuration. H H HN H Which Fischer structures below have the same stereochemistry configuration A C COOH D CH3 CH3 CH3 COOH NH COOH NH H H B NH CH3 E R S COOH COOH CH3 NH CH3 HN H H3C COOH F COOH H NH ABC

5 6 7 01 point Tap on the conjugate acid 11 point X Selected Answer Incorrect neutral Match the pH range with the solution properties. basic Conjugate acidbase pair acidic Remove H 01 point The reaction between a BrnstedLowry acid and water is called acid Conjugate acidbase pair X acid ionization Add H 7 7 7,3 Tap on the acid (but not the

Alkenes can be converted to alcohols by reaction with mercuric acetate to form a ?-hydroxyalkylmercury(II) acetate compound, a reaction called oxymercuration. Subsequent reduction with NaBH4 reduces the C-Hg bond to a C-H bond, forming the alkyl alcohol, a reaction called demercuration. Draw the structures of the Hg-containing compound(s) and the

NaBH HO Hg(OOCCH) HO, THF Neutral product(s) of oxymercuration. Include stereoisomers, if any. Alcohol product(s) of demercuration. Include stereoisomers, if any. Select all that apply The alcohol product(s) of the reaction is characterized as being R,R. R,S (andor S,R). S,S. achiral. racemic. diastereomers. R. c S.

K Classify each process by its individual effect on the entropy of the universe, S Drag the appropriate items to their respective bins. View Available Hint(s) a process run infinitesimally slowly at equilibrium and reversed to its original state the dissolution of sodium chloride in water Increases S of the universe a constant composition mixture

Determine the pH of an HNO2 solution (for which Ka4.6x104) of each of the following concentrations. Part A Part complete 0.520 M Express your answer to two decimal places. Part B Part complete 0.100 M Express your answer to two decimal places. Part C Part complete 1.10102 M Express your answer to two decimal places. Part D When using an ICE table

A North Carolina real estate broker is managing an apartment community. occupancy has dropped by 80% and the broker needs to attract more tenants. Which of the following actions made a broker lawfully make to solicit more tenants? A. Offer 1 months free rent for existing tenants who refer new tenants B. offer 2 months free rent to each new tenant

Element X forms three different compounds with element Y. Based on the information in this table compund 1> formula XY6> mass of Y per grams of X> 2.82g compound 2> formula XY?> mass of Y per grams of X>1.41g compound 3> formula XY?> mass of Y per grams of X >0.94 g what are the formulas of compounds 2 and 3?