Question 15For a solution equimolar in HCN and NaCN, which statement is false?a) This is an example of common ion effect.b) The [H'] is larger than it would be if only the HCN was in solution.c) The (H*] is equal to the Ka.d) Addition of more NaCN will shift the acid equilibrium of HCN to the left.e) Addition of more NaOH will increase [CN] and decrease [HCN]).Question 16What will happen if a small amount of hydrochloric acid is added to a 0.1 Msolution of HF?a) The percent ionization of HF will increase,b) The percent ionization of HF will decrease.c) The percent ionization of HF will remain unchanged.d) K, for HF will increase.e) Ka for HF will decrease.Question 1715.0 mL of 0.50 M HCI is added to a 100 mL sample of 0.462 M HNO2 (K, for HNO2= 4.0 x 10-4). What is the equilibrium concentration of NO2 ions?a) 2.5 x 10-3 Mb) 1.6 x 10-4 Mc) 4.0 x 10-1 Md) 5.0 x 10-2 Me) none of these Question 13Given the initial rate data for the reaction A + B → C. determine the rateexpression for the reaction.ACAt (initial) M/s5.81 x 10-41.16 x 10-32.32 x 10-3[В], м0,150[A], M0.2150.2150.4300.3000.150A[C]a)= 1.80 x 10 M's[A][B]AtA[C]= 3.60 x 10- M's(A][B]b)AtA[C]= 1.20 x 10- M,-(A][B]?Atc)A[C]At= 5.57 x 10- Ms-[A]°[B]?d)6A[C]At= 8.37 x 10- M's[A]°[B]e)Question 14Calculate the [H*] in a solution of 0.17 M in NaF and 0.25 M in HF. (K, = 7.2 x10-4).a) 7.2 x 10-4 Mb) 1.5 Mc) 1.1 x 10-3 Md) 0.20 Me) 4.9 x 10-4 M

Question 15 For a solution equimolar in HCN and NaCN, which statement is false? a) This is an example of common ion effect. b) The [H'] is larger than it would be if only the HCN was in solution. c) The (H'] is equal to the Ka. d) Addition of more NaCN will shift the acid equilibrium of HCN to the left. e) Addition of more NaOH will increase [CN] and decrease [HCN].

Question 15 For a solution equimolar in HCN and NaCN, which statement is false? a) This is an example of common ion effect. b) The [H'] is larger than it would be if only the HCN was in solution. c) The (H'] is equal to the Ka. d) Addition of more NaCN will shift the acid equilibrium of HCN to the left. e) Addition of more NaOH will increase [CN] and decrease [HCN].

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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