Question

A cold drink bottle contains 200 mL liquid, in which CO₂ is 0.1 molar. Considering CO₂ as an ideal gas the volume of the dissolved CO₂ at S.T.P is ______.

पर्याय

• 22.4 L

• 0.224 L

• 2.24 L

• 0.448 L

Answer 1

A cold drink bottle contains 200 mL liquid, in which CO₂ is 0.1 molar. Considering CO₂ as an ideal gas the volume of the dissolved CO₂ at S.T.P is 0.448 L.

Explanation:

Given,

Molarity = 0.1 M

Volume = 200 mL

∵ Molarity = `"number of moles of solute"/"volume of solution (mL)" xx 1000`

∴ Number of moles = `(0.1 xx 200)/1000` = 0.02

Now,

1 mole of dissolved CO₂ occupies = 22.4 L volume at STP.

∴ 0.02 moles of dissolved CO₂ occupies

= 22.4 × 0.02

= 0.448 L Volume at STP.