Calculate the mass of Sodium Sulphate required to prepare its 20% (Mass percent) solution in 100g of water?

Academic Chemistry NCERT Class 9

Let the mass of sodium sulphate required be =x grams

The mass of solution =(x+100)g

x g of solute in (x + 100) g of solution

20% = (x / x+100) ×100

20x+2000=100x

80x=2000

x = 2000/80

x =25 g

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Updated on: 19-Jan-2023

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