The mole fraction of a solute in a molal aqueous solution is . (Round off to Nearest Integer) [Atomic masses: H: , O: ]

Question

The mole fraction of a solute in a  molal aqueous solution is  . (Round off to Nearest Integer) [Atomic masses: H: , O: ]

Canvas Classes · Accepted Answer

Strategy:
 100 molal means there are 100 moles of solute in 1000g of solvent (water). Use the definition of mole fraction: .

Step 1: Calculate moles of solvent

Step 2: Calculate mole fraction

Step 3: Format the answer
.
The nearest integer is 64.

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