Question

Which of the following is a salt that will form from the combination of a strong base with a weak acid?

Select the correct answer below:
A. NaHCO3
B. H2O
C. CH3CO2H
D. NH4Cl

Answer 1

A. NaHCO₃

Step-by-step explanation:

NaHCO₃ ⇒ NaOH + H₂CO₃

NaOH is a strong base and H₂CO₃ is a weak acid. Therefore, NaHCO₃ is a salt of a strong base-weak acid reaction. The salt is basic because carbonic acid (H₂CO₃) is a weak acid so it remains undissociated. So, there is a presence of additional OH⁻ ions that makes the solution basic.

Hope that helps.