CHEMISTRY QUESTIONSPLEASE ANSWER AND GIVE EXPLANATION ASWELL.

1.	CHEMISTRY QUESTIONSPLEASE ANSWER AND GIVE EXPLANATION ASWELL.
Answer» Mass of the solution = mass of SOLUTE + mass of solvent Given that the mass percent of sodium SULPHATE solution is 20%. Let the mass of sodium sulphate which is required to prepare this solution be x grams. Given that the mass of water is 100 G. So, 20 = [x/(x + 100)] * 100 20/100 = [x/x + 100] 1/5 = x/x + 100 x + 100/5 = x x + 100 = 5x 5x - x = 100 4x = 100 x = 100/4 x = 25 Thus, 25g of sodium sulphate is required.

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