Chemistry concepts and calculations

6. The rate constant for a certain chemical reaction is 71.0 s -1 at a temperatu

6. The rate constant for a certain chemical reaction is 71.0 s-1 at a temperature of 20.0°C. If the activation energy for this reaction is 52. kJ/mole, what is the rate constant a…

6. The rxn C 2 H 6 (g) --> 2CH 3 (g) is a first order rxn. If k = 5.50*10 -4 s -

6. The rxn C2H6(g) --> 2CH3(g) is a first order rxn. If k = 5.50*10-4s-1 and [C2H6] is initially 0.0200M, calcualte the final concentration after 1.25 hours. 7. What is the hal…

6. The structure shown below is amoxicillin, one of the most commonly prescribed

6. The structure shown below is amoxicillin, one of the most commonly prescribed penicillin-type antibiotics in use today. The structure on the right is a ?-lactam, which is the c…

6. The value of state function depends only on the present state of the system,

6. The value of state function depends only on the present state of the system, not on the path the system took to reach that state. Which of the following quantities are state fu…

6. The vapor pressure of pure, solid pyrene at 25 ° C is given by the variable P

6. The vapor pressure of pure, solid pyrene at 25 °C is given by the variable P1 atm. The solubility of pyrene in H2O at 25 °C is 1.0 x 10-4 M, whereas the solubility in ethanol a…

6. The water coupling/dioxygen evolving reaction promoted by photosynthetic orga

6. The water coupling/dioxygen evolving reaction promoted by photosynthetic organisms (involves the proton-coupled four electron oxidation of two water molecules along with O–O bo…

6. The weak acid or the weak base of the below species is given along with eithe

6.   The weak acid or the weak base of the below species is given along with either the pKa or the pKb. Determine the unknown information for each species from the information giv…

6. This question comes from https en.Wikipedia.org/wiki/Caesar Cipher. Let A equ

6. This question comes from https en.Wikipedia.org/wiki/Caesar Cipher. Let A equal the set of 26 letters of the English alphabet, without regard to lower case or upper case. A bij…

6. To the correct number of significant figures, how should the answer to this c

6. To the correct number of significant figures, how should the answer to this calculation be writtern r to this calculation be written? (98.35-97.75) x 28.3- (A) 16 (B) 16.98 (C)…

6. Translate the following base 10 integers into binary, octal and hexadecimal.

6. Translate the following base 10 integers into binary, octal and hexadecimal. Show your work for the “grouping method” of translating binary to octal and hexadecimal.           …

6. UV: Determine the max for each of the following structures. Show your work. D

6. UV: Determine the max for each of the following structures. Show your work. D. 2max E. Lmax HN G. 2max Part B: NMR Spectroscopy (read TOC Chapter 22) Go to: H. max htip://www2.…

6. UV: Determine the max for each of the following structures. Show your work. D

6. UV: Determine the max for each of the following structures. Show your work. D. 2max E. Lmax HN G. 2max Part B: NMR Spectroscopy (read TOC Chapter 22) Go to: H. max htip://www2.…

6. Uise the following potential energy iagram below to answer questions: AB 100

6. Uise the following potential energy iagram below to answer questions: AB 100 EA-forward 80 PE 60 k)) 40AB A, reverse A+B 20 C+D Progress of the reaction a. is the overall react…

6. Under what conditions could a thermodynamically unfavorable reaction proceed?

6. Under what conditions could a thermodynamically unfavorable reaction proceed? 7. Understand the significance of the free-energy change (G) of reactions and the relationship bet…

6. Use formal charges to choose between different arrangements of atoms a) carbo

6.         Use formal charges to choose between different arrangements of atoms a) carbon disulfide, CSS or SCS? b) hypochlorous acid, HOCI, HCIO, or OHCI? c) nitrosy1 chloride, N…

6. Use the 4Pts AB 100 80 PE 60 EA, reverse A+ B C+D 20- Progress of the reactio

6. Use the 4Pts AB 100 80 PE 60 EA, reverse A+ B C+D 20- Progress of the reaction a. is the overall reaction, as shown, exothermic or endothermic? xothermic l0o-40b what is the va…

6. Use the following data for the reaction: 4CH,N+CO H.O Experiment 4NO CH,N 3.8

6. Use the following data for the reaction: 4CH,N+CO H.O Experiment 4NO CH,N 3.8 x 10* 3.8 x 10 7.6 x 10 O2 , M/min 2.4 x 10 1.25 x 10 6.0 x 10 3.0 x 10 Also find the rate when [C…

6. Use the following potential energy diagram below to answer questions: 4Pts AB

6. Use the following potential energy diagram below to answer questions: 4Pts AB EA, forward 100 80 Ea. reverse PE 60 (k))AB C+D 20 Progress of the reactiorn a. is the overall rea…

6. Using Le Châtelier\'s principle, predict what will happen to the equilibrium

6. Using Le Châtelier's principle, predict what will happen to the equilibrium under the follow- ing conditions: (Hint: The Fe3+ ion is yellow and the [FeSCN2+ complex is red.) (3…

6. Using the energy efficiency of CO2 dissociation into CO and 02 in thermal pla

6. Using the energy efficiency of CO2 dissociation into CO and 02 in thermal plasma in the regime of ideal quenching at specific energy input 3 eV/imol found in Problem 3, calcula…

6. Weighing Data for 3 trials Calculate the difference between mass delivered by

6. Weighing Data for 3 trials Calculate the difference between mass delivered by each technique and also the percent error between the masses of NaCI using the "By Difference" val…

6. Weighing Data for 3 trials Calculate the difference between mass delivered by

6. Weighing Data for 3 trials Calculate the difference between mass delivered by each technique and also the percent error between the masses of NaCI using the "By Difference" val…

6. Westrich and Berner (1984) suggest that the oxidation of organic matter can b

6. Westrich and Berner (1984) suggest that the oxidation of organic matter can be considered a first-order re- action, with the differential rte equation written as: dG/dt =-k,G. …

6. What are the two spectator ions present in this reaction? 05, and Na 7. Combi

6. What are the two spectator ions present in this reaction? 05, and Na 7. Combine all the facts above (Questions 1,5, and 6) i. Write a molecular equation for the reaction betwee…

6. What are the two spectator ions present in this reaction? 05, and Na 7. Combi

6. What are the two spectator ions present in this reaction? 05, and Na 7. Combine all the facts above (Questions 1,5, and 6) i. Write a molecular equation for the reaction betwee…

6. What are the values/formulas of the following? a) melting point of water (in

6. What are the values/formulas of the following? a) melting point of water (in all 3 units) b) boiling point of water (in all 3 units) c) the density of water d) the formula for …

6. What are the values/formulas of the following? a) melting point of water (in

6. What are the values/formulas of the following? a) melting point of water (in all 3 units) b) boiling point of water (in all 3 units) c) the density of water d) the formula for …

6. What change in reaction direction occurs if dilute HCI is added to a H.PO, so

6. What change in reaction direction occurs if dilute HCI is added to a H.PO, solution? I.Coasider the solubility of BaSO. If Ba(NO,) is added to the solution, the solubility of t…

6. What happens to a reaction when Q K? A. Reaction shifts to the left to make m

6. What happens to a reaction when Q K? A. Reaction shifts to the left to make more reactant. B. Reaction shifts to the right to make more products. C. Reaction do not shift shift…

6. What is the A equilibrium-constant expression for the following equilibrium A

6. What is the A equilibrium-constant expression for the following equilibrium ATSP B) C) IS, JI) D) IR) E)? 7. Which of the following reactions is associated with the definition …

6. What is the AG of the reaction below at 375 K if its enthalpy is +142 kJ/mol

6. What is the AG of the reaction below at 375 K if its enthalpy is +142 kJ/mol and its entropy is +137 J/mol K? Is it spontaneous or non-spontaneous? 20sg) à 3020) A. -91 kJ, spo…

6. What is the RUPACne of the comoun L If the optical rotation faof itonellal is

6. What is the RUPACne of the comoun L If the optical rotation faof itonellal is-11.5%whar would the observed notation be if you had a mistu 1.15b)6 39 2Which phsical properties a…

6. What is the change in entropy for a typical, 65 kg human (assume the body has

6. What is the change in entropy for a typical, 65 kg human (assume the body has the same physical properties as water) when the body core temperature is lowered from normal (37 d…

6. What is the electrophile in the Friedel-Crafts alkylation reaction with tert-

6. What is the electrophile in the Friedel-Crafts alkylation reaction with tert-butylchloride? A. The tert-butyl cation B. A complex of tert-butylchloride and aluminum trichloride…

6. What is the equilibrium concentration for Cl2(g) in the reaction below if at

6. What is the equilibrium concentration for Cl2(g) in the reaction below if at equilibrium, PCS the M, [PCb]=0.42 M and Ke=0.44? PCIs(g) PC, (g) + Cl2(g) 7. -C that had a Kc valu…

6. What is the identity of sx? a. zinc b. silver c. iridium d. cesium O manganes

6. What is the identity of sx? a. zinc b. silver c. iridium d. cesium O manganese 7. For the process A + 389 2C how many moles of C are theoretically formed from the reaction of 0…

6. What is the molar solubility of cadmium hydroxide, Cd(OH) 2 in pure water at

6. What is the molar solubility of cadmium hydroxide, Cd(OH)2 in pure water at 25 oC? Note that KSP for Cd(OH)2 is 5.3 x 10-15 at 25 oC 7. In the previous problem, you calculated …

6. What is the relationship between the volume of balloon and the following? Ass

6. What is the relationship between the volume of balloon and the following? Assume that everything else stays the same. a. how much air you put in it b. you put it in the refrige…

6. What quantity, in moles,of hydrogen is consumed when 1S1.1 kJ of energy is ev

6. What quantity, in moles,of hydrogen is consumed when 1S1.1 kJ of energy is evolved from the combustion of a mixture of H2(g) and 0 (8)? a. 0.5286 mol b.0.2643 mol c. 1.891 mol …

6. Which ONE of these would have the lowest boiling point? a) (CH3))N b) CHiCH2N

6. Which ONE of these would have the lowest boiling point? a) (CH3))N b) CHiCH2NHCH c) CH,CH,CHNH 4 7. A primary amine has how many peaks in the region of 3200-3400 cm in the IR? …

6. Which ONE of these would have the lowest boiling point? a) (CHi)N b) CH CH NH

6. Which ONE of these would have the lowest boiling point? a) (CHi)N b) CH CH NHCH primary amine has how many peaks in the region of 3200-3400 cm" in the IR? a) zerob) one c) two …

6. Which ONE ofthese would have the lowest boiling point?CH0H11b a) (CHs)AN b) C

6. Which ONE ofthese would have the lowest boiling point?CH0H11b a) (CHs)AN b) CH,CH NHCH c) CH 7. A primary amine has how many peaks in the reg a) three a) zero b) one c) two 8. …

6. Which amino acid has the one-letter symbol E? a) lysine b) phenylalanine c) h

6. Which amino acid has the one-letter symbol E? a) lysine b) phenylalanine c) histidine d) glutamic acid 7. Which amino acid has a benzene-like ring? a) Glutamic Acid b) Histidin…

6. Which amino acid has the one-letter symbol E? a) lysine b) phenylalanine c) h

6. Which amino acid has the one-letter symbol E? a) lysine b) phenylalanine c) histidine d) glutamic acid 7. Which amino acid has a benzene-like ring? a) Glutamic Acid b) Histidin…

6. Which of the following is not true for a solution at 25° C that has a hydroxi

6. Which of the following is not true for a solution at 25° C that has a hydroxide (OH) concentration of 2.5 x 106 M A. The Kw is independent of what the solution contains. B. Kw-…

6. Which of the following is not used as a binder in coal briquetting ? A. Tar B

6. Which of the following is not used as a binder in coal briquetting ? A. Tar B. Molasses C. Pitch D. Line 7. Size of blast furnace grade coke is __________ mm. A. 25-80 B. 0-15 …

6. Which of the following molecules and ions contain polar bonds? Which of these

6. Which of the following molecules and ions contain polar bonds? Which of these molecules and ions have dipole moments? (14 pts) (a) CIF (b) (b)CIO, (c) (c)sia- (d) Pc (e) SeF (t…

6. Which of the following represents the set of three quantum number that corres

6. Which of the following represents the set of three quantum number that correspond atomic orbital? 7. Coulomb's law predicts that when two oppositely charged particles get close…

6. Which of the following species will reduce Ag+ but will not reduce Cu2+? A. F

6. Which of the following species will reduce Ag+ but will not reduce Cu2+? A. Fe2+ B. Fe3+ C. Au3+ D. Mn2+ E. Sn2+ 7. Which of the reactions shown below should be spontaneous und…

6. Which of the following statements is false a. The rate of vaporization increa

6. Which of the following statements is false a. The rate of vaporization increases with increasing surface area. b. The rate of vaporization increases with decreasing s strength …