Question

Equal volumes of 0.1 M HCl and 0.1 M NaOH are mixed. The concentration of the resulting solution will be

a.0.1 M

b.0.05 M

c.0.2 M

d.0M

• A. 0.1 M
• B. 0.05 M
• C. 0.2 M
• D. 0M

Answer 1

The correct option is b
0.05 M

0.1 M HCl completely neutralizes 0.1 M NaOH. As the volume has been doubled, the concentration reduces to half.