15.5g of a substance is dissolved in 150g of benzene. If the molality of the substance is close to: (A) 60 (B) 50 (C) 40 (D) 7
Understand the Problem
The question pertains to the calculation of molarity based on given mass and volume, as well as understanding properties related to solutions and processes in chemistry. It also includes questions related to coloids and calcinating examples.
Answer
7
The final answer is 0.7 mol/kg.
Answer for screen readers
The final answer is 0.7 mol/kg.
More Information
The molality calculation involves dividing the moles of the solute by the mass of the solvent in kilograms. In this problem, checking the options provided and back-calculating can confirm the molality closest to 7.
Tips
Be sure to convert all masses to the appropriate units and verify using all possible choices given.
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