Washing soda (Na2CO3.10H2O) is widely used in softening of hard water. – InterviewSolution

InterviewSolution

1.	Washing soda (Na2CO3.10H2O) is widely used in softening of hard water. If 1L of hard water requires 0.0143 g of washing soda, what is hardness of water in terms of ppm of CaCO3?
Answer» Washing soda $(N a_{2} C O_{3} .10 H_{2} O)$ is widely used in softening of hard water. If 1L of hard water requires 0.0143 g of washing soda, what is hardness of water in terms of ppm of $C a C O_{3}$ ?

Discussion

No Comment Found

Related InterviewSolutions

40. Bond angle . BCl3 and BBr3
18. On cooling Chlorine water, there deposits greenish yellow crystals of Cl2.xH2O. Value of x is what?
a and b are van der Waals constants. Which gas will liquefy easily?
Doctor who examines and give medical treatments for eyes is
Identify the gas(es) which is released when coal is burnt in the presence of air.
A sample of calcium carbonate weighing 5g was heated. It yielded 2.25g of calcium oxide along with 1.4L of carbon dioxide.Prove that the given information explains the law of conservation of mass.
Question 19Is it possible for the atom of an element to have one electron, one proton and no neutron? If so, name the element.
What is the correct chemical equation for the combustion of charcoal (carbon) in the presence of oxygen?
(a) Name one metal which can displace iron form iron sulphate solution. (b) Name one metal which cannot displace iron form iron sulphate solution.
Question 2What is a good fuel?