How to calculate hardness of water of MgSO4?

Temporary hardness = Mg(HCO3)2 = 11.50mgs/Lit. Permanent hardness = MgCl2 + MgSO4 = 12.63 + 24.66 = 37.29mgs/Lit.

What is the degree of hardness of a sample of water containing 24 mg of MgSO4 per kg of water?

20 ppm
It is given that 1 kg of water contains 24 mg of $MgS{O_4}$. Therefore, the equivalent amount of $CaC{O_3}$ for 24 mg of $MgS{O_4}$ = 24 $ \times $ 100 /120 = 20 ppm. Hence, the degree of hardness of water is 20 ppm. The correct answer is (C) 20 ppm.

Which of the following compound can be used for removal of temporary hardness of water?

From the above given options, slaked lime can remove the temporary hardness and process of removal of hardness is called Clark’s process. In Clark’s process, the addition of slaked lime into temporary hard water will take place.

How do you determine the hardness of a sample of water?

The amount of hardness is expressed in milligrams per litre (mg/L) or grains per gallon (gpg) as calcium carbonate. Hardness is calculated from the equation Hardness = 2.497 (Ca) + 4.118 (Mg).

What type of hardness is present in magnesium sulfate solution?

2 to 2.5
The Mohs hardness is 2 to 2.5 and it has a low specific gravity of 1.67. Epsomite is the same as the household chemical, Epsom salt, and is readily soluble in water….CHEBI:31795 – magnesium sulfate heptahydrate.

ChEBI Name	magnesium sulfate heptahydrate
Definition	A hydrate that is the heptahydrate form of magnesium sulfate.

How is temporary water hardness removed?

Temporary hardness of water can be removed by using calcium hydroxide also known as Clark’s reagent, as calcium hydroxide converts bicarbonates to insoluble carbonates which can be removed by filtration thus softening the hard water.

How do you calculate hardness of water in ppm?

It takes 17.1 PPM to equal 1 GPG. If a test for hard water is measured in parts per million or milligrams per liter you can take the total hardness level and divide it by 17.1 to get hardness in grains per gallon. For example if your water test shows 250 mg/L hardness you actually have 14.62 grains per gallon.

How do you measure the hardness of water in ppm?

Often, water hardness test results will be delivered in ppm or mg/L, which are equivalent. To use the same hardness scale above, you can simply convert your ppm or mg/L by dividing that number by 17.1 to find the gpg equivalent. So, for example, 130 mg/L or ppm would be 7.6 gpg, which is considered hard water.

Does mgcl2 cause hardness of water?

MgCl2 and MgSO4 cause permanent hardness of water, while Mg(HCO3)2 and MgCO3 cause temporary hardness of water.