Question

Find the volume of a 0.2 molar solution of sodium hydroxide, which is used to neutralize 40 liters of a 0.3 molar hydrochloric acid solution.

• A. 10 liters
• B. 20 liters
• C. 40 liters
• D. 60 liters
• E. 120 liters

Answer 1

Answer: (D)

60 liters

$M_1{V}_1=M_2{V}_{2}0.200\times V_1=0.300\times 40V_1=60L$
Hence, the volume of a 0.2 molar solution of sodium hydroxide, which is used to neutralize 40 liters of a 0.3 molar hydrochloric acid solution, is 60 liters.