Answer to Question #56160 in General Chemistry for sue
Express the molality with the appropriate units.
I entered these and they are not correct, can you help?
ANSWER 1: Deduction: -3%
ANSWER 2: Deduction: -3%
Enter your answer using dimensions of concentration.
solvent – H2O
solute – C12H22O11
ρ (density) = m / V (mass / volume),
so m = ρ * V
m (H2O) = 0.975 (g/mL) * 350 mL = 341.25 g
n = m / M
n (C12H22O11) = 2.5 g / 342 g/mol = 0.0073 mol
b (solution) = 0.0073 mol / 0.3413 g = 0.021 mol/kg
Answer: 0.021 mol/kg
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