The concentration of a benzene solution prepared by mixing 12.0 g C₆H₆with 38.0 g CCl₄is
Molal.

Name: The concentration of a benzene solution prepared by mixing 12.0 g C 6 H 6 with 38.0 g CCl 4 is Molal. A) 0.240 B) 4.04 C) 0.508 D) 0.622 E) 0.316
Brand: Quizplus
Rating: 4.8 (30 reviews)

Question

The concentration of a benzene solution prepared by mixing 12.0 g C₆H₆with 38.0 g CCl₄is Molal. A) 0.240 B) 4.04 C) 0.508 D) 0.622 E) 0.316

Quizplus · Accepted Answer

Molality is calculated by dividing the moles of solute by the kilograms of solvent. The moles of benzene (C6H6) is 12.0 g / 78.11 g/mol = 0.1537 mol. The mass of CCl4 in kg is 38.0 g / 1000 = 0.038 kg. Molality = 0.1537 mol / 0.038 kg = 4.04 mol/kg.

The Concentration of a Benzene Solution Prepared by Mixing 12