Question

Which of the following is/are correct for $17g/L$ of $H_2{O}_2$ solution?

• A. Volume strengths is $5.6$ at $273K$ and $1atm$
• B. Molarity of solution is $0.5M$
• C. $1mL$ of this solution gives $2.8mL{O}_2$ at $273K$ and $2atm$
• D. The normality of solution is $2M$

Answer 1

Answer: (A), (B), (C)

The correct options are
A Volume strengths is $5.6$ at $273K$ and $1atm$
B Molarity of solution is $0.5M$
C $1mL$ of this solution gives $2.8mL{O}_2$ at $273K$ and $2atm$

For A, The concentration in g/L is $\frac{680x}{224}g/L$
Here,$x$ represents the volume strength.
Thus, $17g/L=\frac{680x}{224}g/L$
The volume strength $x$ is $5.6$.
Thus, the option A is correct.
For B, the molarity of the solution is $\frac{x}{11.5}=\frac{5.6}{11.2}=0.5M$.
Thus, the option B is correct.
For C, The volume strength is $5.6$. This implies that $1$ mL of this solution gives $5.6$ ml of oxygen at $273$ K and $1$ atm.
When, the pressure is doubled to $2$ atm, the volume is reduced to half, i.e to $2.8$ mL.
Hence, the option C is correct.
For D, The normality of the solution is $\frac{x}{56}=\frac{5.6}{56}=0.1N$.
Thus, the option D is incorrect.