Question

calculate the mass of sodium sulphate required to prepare its 20% (mass percent) solution in 100 g of water​

Answer 1

Answer:

25 g of water

Step-by-step explanation:

very simple

Answer 2

Let the mass of sodium sulphate required be =xg

The mass of solution =(x+100)g

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

20% =

x+100

x

×100

20x+2000=100x

80x=2000

x=

80

2000

=25 g

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hope it will help

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