Question

calculate the mass of sodium sulphate paper at 20% solution in 100 gram of water​

Answer 1

Explanation:

20% solution means 20 g of solution in 100g of water

20/100=0.2g

Water molar mass=18

No of Moles

100/1000=0.1mole

Moles=Mass/Molar Mass

0.1=. Mass/18

1.8g= Mass....