A sample of hard water is found to contain 40 mg of `Ca^(2+)` ions per litre. The amount of washing shoda `(Na_(2)CO_(3))` required to soften `5*0`L of the sample would be

A sample of hard water contains 20 mg of Ca^(2+) ions per litre. How many millimoles of Na_(2)CO_(3) would be requried to soften 1 L of the sample. Also calculate the mass of Na_(2)CO_(3) .

A sample of hard water contains 20 mg of Ca^(2+) ions per litre. How many millimoles of Na_(2)CO_(3) would be requried to soften 1 L of the sample. Also calculate the mass of Na_(2)CO_(3) .

A sample of hard water contains 20 mg of Ca^(2+) ions per litre. How many milliequivalents of Na_(2)CO_(3) would be required to soften 1 litre of sample ?

1L of pond water contains 20mg of Ca^(2+) and 12mg "of" Mg^(2+) ions . What is the volume of a 2N Na_(2)CO_(3) solution required to soften 5000L of pond water?

1L of pond water contains 20mg of Ca^(2+) and 12mg "of" Mg^(2+) ions . What is the volume of a 2N Na_(2)CO_(3) solution required to soften 5000L of pond water?

1L of pond water contains 20mg of Ca^(2+) and 12mg of mg^(2+) ions. What is the volume of a 2N Na_2 CO_3 solution required to soften 5000L of pond water ?

1L of pond water contains 20mg of Ca^(2+) and 12mg of mg^(2+) ions. What is the volume of a 2N Na_2 CO_3 solution required to soften 5000L of pond water ?

A sample of hard water is found to contain 50mg of CaSO_4 in 12kg of sample.Calculate the hardness of the sample in terms of ppm of CaSO_4 .