The degree of hardness of a given sample of hard water is `40 p p m`. If the entire hardness is due to `MgSO_(4)`, how much of `MgSO_(4)` is present per `kg` of water?

The degree of hardness of a given sample of hard water is 60 ppm. If the entire hardness is due to MgSO_4, how many of MgSO_4 is present per kilogram of hard water ?

The degree of hardness of a given sample of hrad water is 40 ppm if the entire hradness is due to MgSO_4 how much of MgSO_4 is present per kg of water?

Define degree of hardness of water.

The degree of hardness of a sample of water is 40 ppm. If the hardness is only due to the presence of "MgSO"_(4) , then determine the amount of "MgSO"_(4) in 1 kg of that water.

Determine the degree of hardness of a sample of water containing 30 ppm of MgSO_(4) .

Calculate the degree of hardness of a sample of hard water which is found to contain 72 mg of "MgSO"_(4) per kg of water.

A sample of water contained 30ppm of MgSO_4 . Its hardness is

Permanent hardness of water is due to

The temporary hardness of water is due to :