Question

Calculate the [H⁺] in 1.0 M solution of Na₂CO₃ (for H₂CO₃, K_a1 = 4.3 × 10^–7; K_a2 = 5.6 × 10^–11).

a) 7.5 × 10^–6 M

b) 6.6 × 10^–4 M 

c) 1.3 × 10^–2 M 

d) 7.5 × 10^–13 M 

e) none of these  

Answer 1

d) 7.5 × 10^–13 M