Home
Class 11
CHEMISTRY
The hardness of water sample containing ...

The hardness of water sample containing 0.002 mole of magnesium sulphate dissolved in a litre is expressed as

A

20 ppm

B

200 ppm

C

300 ppm

D

120 ppm

Text Solution

Verified by Experts

The correct Answer is:
B
0.002 moles of `MgSO_(4)` is equivalent to 0.002 moles of `CaCO_(3)`.
0.002 moles of `CaCO_(3)` weighs `0.002xx100=0.2` g
Degree of hardness `=(0.2)/(10^3)=10^(6)=200` ppm
Promotional Banner

Similar Questions

Explore conceptually related problems

The hardness of water sample containing 0*002 mole of magnesium sulphate dissolved in a litre of water is expressed as

The hardness due to the presence of chlorides and sulphates of calcium an magnesium dissolved in it is called ……………. Hardness.

Number of moles of solute dissolved per litre of solution is

Mass of CaO will be required to remove the hardness of 1000 litres of water containing 1.62 g of calcium bicarbonate per litre is A. Find value of A

Hardness of water is due to dissolved impurities of

Will the depression in freezing point be same or different if 0.1 mole of sugar or 0.1 mole of glucose is dissolved in one litre of water ?