Skip to content
MathsGenie logo
Open app

Course home

  1. A Level
  3. Chemistry OCR A
  5. Question bank

Rates, equilibrium and pH

EasyMediumHard
1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162
Question 12

An aqueous solution of propanoic acid, CH3CH2COOH\text{CH}_3\text{CH}_2\text{COOH}CH3​CH2​COOH, has a concentration of 0.15 mol dm-3.

pKa\text{p}K_{\text{a}}pKa​ for CH3CH2COOH=4.87\text{CH}_3\text{CH}_2\text{COOH} = 4.87CH3​CH2​COOH=4.87 at 25 ∘C25\text{ }^\circ\text{C}25 ∘C.

What is the pH of the propanoic acid solution at 25 ∘C25\text{ }^\circ\text{C}25 ∘C?

2.02

2.85

4.05

5.69

Rates, equilibrium and pH Questions

  1. A Level
  2. /Chemistry
  3. /Rates, equilibrium and pH