JAMB - Chemistry (1980 - No. 18)

20 cm3 of 1 M H\(_2\)SO\(_4\) is mixed 20 cm\(^3\) of 1 M NaOH. The resulting solution is?
acidic with a molarity of 0.50 M H2SO4
acidic with a molarity of 0.25 H2SO4
neutral
alkaline with a molarity of 0.25 M NaOH
alkaline with a molarity of 0.50 M NaOH

Explanation

The balanced equation for the reaction is:

\(2NaOH + H_2 SO_4 \to Na_2 SO_4 + 2H_2 O\)

\(\therefore 1M H_2 SO_4 \to 2M NaOH\)

\(1M NaOH \to 0.5M H_2 SO_4\)

The resulting solution is Acidic with 0.5M H\(_2\)SO\(_4\). 

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