Hydrogen Question 3
Question 3 - 25 January - Shift 1
‘25 volume’ hydrogen peroxide means
(1) $1 L$ marketed solution contains $250 g$ of $H_2 O_2$
(2) $1 L$ marketed solution contains $75 g$ of $H_2 O_2$.
(3) $100 mL$ marketed solution contains $25 g$ of $H_2 O_2$.
(4) $1 L$ marketed solution contains $25 g$ of $H_2 O_2$.
Show Answer
Answer: (2)
Solution:
Volume $=11.35 \times M$
Strength
$M=\frac{25}{11.35} M$
$g / L=25 \times 34 / 11.35$
$=74.889$
