A chemistry student needs 75 g of thiophene foran experiment. He has available 0.50 kg of a 29.3% w/w solution of thiophene in carbon tetrachloride.
Calculate the mass of solution the student should use. Ifthere's not enough solution, press the "No solution" button.

The mass of solution the student should use is 256 g

Explanation:

Given : 29.3 % w/w which means that 29.3 g of solute is present in 100 g of solution

Thus 100 g of solution contains = 29.3 g of solute

0.50 kg or 500 g of solution contains = g of solute   (1kg=1000g)

146.5 g of solute is available in = 500 g of solution

Thus 75 g of solute is available in = of solution

Thus the mass of solution the student should use is 256 g

answer: mole of the gas

answer: mole of the gasexplanation: