Chemistry
Give the pH value of pure water. Does it change if common salt is added to it.
Related Questions
Explain why :
(a) it is necessary to find out the ratio of reactants required in the preparation of sodium sulphate,
(b) fused calcium chloride is used in the preparation of FeCl3
(c) Anhydrous FeCl3 cannot be prepared by heating hydrated Iron (III) chloride.
Match the salts given in column A to their methods of preparation in column B. Write a balanced equation for each preparation.
Column A Column B Zinc sulphate Precipitation Ferrous sulphide Oxidation Barium sulphate Displacement Ferric sulphate Neutralisation Sodium sulphate Synthesis. Classify the following solutions as acids, bases or salts.
Ammonium hydroxide, barium chloride, sodium chloride, sodium hydroxide, H2SO4 and HNO3
Complete the following table and write one equation for each to justify the statement:
Reactants Products Method Soluble base + Acid (dil) Salt + water Neutralisation
TitrationMetal + Non-metal Salt (soluble/insoluble) …………… Insoluble base + …………… Salt (soluble) + water …………… Active metal + Acid (dil) …………… + …………… …………… Soluble salt solution (A) + Soluble salt solution (B) Precipitated salt + soluble salt …………… Carbonate/bicarbonate + Acid (dil) Salt + …………… + …………… Decomposition of carbonate Chlorides/nitrates + Acid (conc.) …………… + …………… Decomposition of chlorides and nitrates.