calculate-the-h3o-and-ph-of-060-m-of-a-strong-diprotic-acid-with-pka2-25102-prov

Question

Calculate the [H₃O⁺] and pH of a strong diprotic acid with pK_a2 = 2.5 ×10⁻² at the given concentrations. At which given concentration(s) does the assumption "x is negligible" not applicable?

i. 1.0 M

ii. 0.10 M

iii. 0.01 M

Accepted Answer

i. [H₃O⁺] = 1.0 M; pH = 0

ii. [H₃O⁺] = 0.12 M; pH = 0.92

iii. [H₃O⁺] = 0.016 M; pH = 1.8

x is not negligible in ii and iii.

Answer

i. [H₃O⁺] = 1.3 M; pH = 0

ii. [H₃O⁺] = 0.21 M; pH = 0.68

iii. [H₃O⁺] = 0.15 M; pH = 0.96

x is not negligible in all of the given concentrations.

Answer

i. [H₃O⁺] = 1.0 M; pH = 0

ii. [H₃O⁺] = 0.10 M; pH = 1.1

iii. [H₃O⁺] = 0.016 M; pH = 1.8

x is not negligible in iii.

Answer

i. [H₃O⁺] = 1.2 M; pH = 0.52

ii. [H₃O⁺] = 0.12 M; pH = 0.92

iii. [H₃O⁺] = 0.016 M; pH = 1.8

x is not negligible in all of the given concentrations.

My Courses

Chemistry

Biology

Math

Physics

Business

Social Sciences

Programming

Product & Marketing

Calculate the [H₃O⁺] and pH of a strong diprotic acid with pK_a2 = 2.5 ×10⁻² at the given concentrations. At which given concentration(s) does the assumption "x is negligible" not applicable?
i. 1.0 M
ii. 0.10 M
iii. 0.01 M

My Courses

Chemistry

Biology

Math

Physics

Business

Social Sciences

Programming

Product & Marketing

Calculate the [H3O+] and pH of a strong diprotic acid with pKa2 = 2.5 ×10−2 at the given concentrations. At which given concentration(s) does the assumption "x is negligible" not applicable?i. 1.0 Mii. 0.10 Miii. 0.01 M

Calculate the [H₃O⁺] and pH of a strong diprotic acid with pK_a2 = 2.5 ×10⁻² at the given concentrations. At which given concentration(s) does the assumption "x is negligible" not applicable?
i. 1.0 M
ii. 0.10 M
iii. 0.01 M