Question

A student sets up a titration of $40$ mL of $1M$ $NaOH$ against $2M$ $HCl$, determine the volume of $HCl$ required to neutralize?

• A. $20.00mL$
• B. $40.00mL$
• C. $43.15mL$
• D. $23.15mL$
• E. $13.15mL$

Answer 1

The correct option is A $20.00mL$

Acidity of $NaOH$ $=$ 1

Basicity of $HCl$$=$1

so in both cases

Normality $=$ Molarity

For neutralization

$N_1$$V_1$$=$$N_2$$V_2$

let $X$ is volume of $HCl$ required.

so $1\ast 40$$=$$2\ast X$

or $X$$=20$$mL$