6
QuizMultiple Choice

Measures of Concentration: Molality and Other Calculations — Quiz

Question 6 • Chemistry

Calculate the molality of a solution that was made by dissolving 4 point 9 g of cap h sub 2 SO sub 4 in 50 g of water. Use molality is equal to moles of solute over kilograms of solvent

Answer
A
1000 m
B
0 point 1 0 m
C
1 m
D
10 m

Explanation

The molar mass of H₂SO₄ is about 98 g/mol, so 4.9 g is 4.9 ÷ 98 = 0.05 mol. The 50 g of water is 0.050 kg. Molality is 0.05 mol ÷ 0.050 kg = 1 m, so the correct choice is C, 1 m.

AI-written and checked against the verified answer.

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