The mole fraction of co2 in a certain solution with h2o as the solvent is 3.6 × 10−4. what is the % mass of co2 in this solution?

Explanation:

1) Basis

Assume 100 moles of solution

2) Number of moles of CO₂ (solute)

3) Number of moles of H₂O (solvent)

4) Mass of solution

a) Mass = number of moles × molar mass

b) Mass of CO₂ = 0.036 mol × 44.01 g/mol = 1.584 g

c) Mass of H₂O = 99.964 mol × 18.015 g/mol = 1,800.85 g

d) Mass of solution = mass of solute + mass of solvent = 1.584 g + 1,800.85 g = 1,802.435 g

5) Percent mass of CO₂, %

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