Which one of the following is NOT correct? a. HCIO_4 is a stronger acid than HCl

Question

Which one of the following is NOT correct? a. HCIO_4 is a stronger acid than HClO_3. b. HCIO is a stronger acid than HCI. c. HCIO_2 is a weaker acid than HClO_3. d. CIO^- is a stronger base than CIO_2^-. e. CIO^-_2 is a stronger base than Cl^-. Which one of the following is NOT related to the water autoionization constant, K_w? If all are related, respond E. a. [H_3O^+] [OH^-] b. 1.0 times 10^-14 at 25 degree C c. 2 H_2O H_3O^+ OH^- d. pH = 7 at 25 degree C e. A-D are all related to K_w. When [H^+] = 1.0 times 10^-7 M in water at 25 degree C. then a. pH = 1. b. pH = 10^-7. c. [OH^-] = 1.0 times 10^-7 M. d. [OH] = 1.0 times 10^7 M. e. [OH^-] - 0 M. A solution with pH of 9.50 has a pOH of __. a. 9.50. b. 0.50. c. 4.50. d. 23.5. e. 19.0. Phosphoric acid is a triprotic acid in water, ionizing in the following sequential steps: H_3PO_4 + H_2O H_2PO^-_4 + H_3O^+ = 7.11 times 10^-3 H_2PO_4^- + H_2O HPO_4^2 + H_3O^+ K_a2 = 6.32 times 10^-8 HPO_4^2- + H_2O PO_4^3- + H_3O^+ K_ay = 4.5 times 10^-13 What is the pH of a 0.20 M Na_3PO_4 solution? a. 1.66 b. 5.82 c. 10.50 d. 12.75 e. 12.82

Explanation / Answer

Question 17.

a)

HClO4 is stronger , since it has more Oxygen,s which realeases more H+

b)

False, HClO is not that polar as HCl

c)

True, less oxygen, less strenght

d)

ClO- will accept H+ readily

e)

Correct, sicne Cl- i snot likely to accept H+

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