Question

Calculate the value of $100x$ if $x$ mL is the volume of water required to make $1\text{N}$ solution from $2$ mL concentration $HN{O}_3$.

• A. $2956$
• B. $3000$
• C. $2500$
• D. None of the above

Answer 1

The correct option is A $2956$

Milliequivalents of $HN{O}_3$ (before) $=$ Milliequivalents of dil. $HN{O}_3$ (after dilution)
($\because$ mEq does not change on dilution)
$N_1{V}_1=N_2{V}_2$
$15.78\times 2=1\times V_2$
$\therefore V_2=31.56$ mL
Volume of $H_{2}O$ added $=31.56-2=29.56$ mL