Question

At $300K$, $40$ mL of $O_3$ (g) dissolves in $100g$ of water at $1.0$ atm. What mass of ozone dissolved in $400g$ of water at a pressure of $4.0$ atm at $300K$?

• A. $0.1g$
• B. $1.2g$
• C. $0.48g$
• D. $4.8g$

Answer 1

The correct option is D $4.8g$

40 ml $O_3$ dissolve in 100 g water at 300 K and 1 atm
40 x 4 ml $O_3$ dissolve in 400 g water at 300 K and 1 atm
$\because m\varpi Pso(40\times 4)\times 4$ ml $o_3$ dissolve in $400$ g water at $300K$ and 4 atm
$n_{O_3}dissolved=\frac{4\times 640\times {10}^{-3}}{0.0821\times 300}=0.1$
or mass of $O_3=4.8g$