Advertisements
Advertisements
Question
Name a metal carbonate which is soluble in water.
Solution
Washing soda (sodium carbonate decahydrate) is soluble in water. It has the formula `Na_2 CO_3 . 10H_2O.`
APPEARS IN
RELATED QUESTIONS
Name the sodium compound which is used for softening hard water.
Fill in the following blank:
Chemical formula of washing soda is ..................
What is washing soda?
State two properties and two uses of washing soda.
Write the formulae of sodium chloride and sodium carbonate.
Explain why an aqueous solution of sodium chloride is neutral but an aqueous solution of sodium carbonate is basic (or alkaline). Write chemical equations of the reactions involved.
Consider the following substances:
NaCl, Ca(OH)2, NaHCO3, NH3, Na2CO3, H2O, Cl2, CO2, CaSO4.2H2O, 2CaSO4.H2O, CaOCl2
Which four substances are utilised in the production of washing soda?
How many molecules of water of crystallisation (per formula unit) are present in:
washing soda?
Give a scientific explanation.
The hard water of a well becomes soft on adding washing soda to it.
Answer the following question.
How is washing soda prepared from sodium carbonate? Give its chemical equation. State the type of this salt. Name the type of hardness of water that can be removed by it?
