Here is a 0.200 M solution of $ H_3C_6H_5O_7 $
(citric acid, $K_a$ $=$ $3.5 \cdot 10^{-4}$)
Hydrolysis equilibrium:
$H_3C_6H_5O_7$ $+$ $H_2O$
$H_3O^+$ $+$ $H_2C_6H_5O_7^-$
Identify the initial concentrations of the three species present at equilibrium (without $H_2O$):
For answers, use (possibly several times) the arrows ↑ Down! and ↓ Up! Complete please this question before moving on to the next one!
a) 0.200M, 0M, 0.200M b) 0M, 0.200M, 0.200M c) 0.200M, 0M, 0M d) 0.200M, 0.200M, 0.200M
The correct answer is: Initial concentrations: c) 0.200M, 0M, 0M