91Ó°ÊÓ

How are basic salts formed?

How are soluble salts prepared by direct combination? Give an example.

What is the \(\mathrm{pH}\) range in which phenolphthalein is colourless?

What are the \(\mathrm{pH}\) values of the following solutions at \(25^{\circ} \mathrm{C}\) ? (i) \(0.001 \mathrm{M}\) of \(\mathrm{HCl}\) (ii) \(0.05 \mathrm{M}\) of \(\mathrm{H}_{2} \mathrm{SO}_{4}\) (iii) \(0.01 \mathrm{M}\) of \(\mathrm{NaOH}\)

The formula of the basic salt formed by treating calcium hydroxide with \(\mathrm{HCl}\) is

Which method is employed for the preparation of sulphate of \(\mathrm{Ba}\), \(\mathrm{Ca}\) and \(\mathrm{Pb}\) ?

What would be the nature of aqueous solutions of the following salts? (i) \(\mathrm{KNO}_{3}\) (ii) \(\mathrm{Na}_{2} \mathrm{CO}_{3}\) (iii) \(\mathrm{CH}_{3} \mathrm{COONa}\)

Normality of \(0.01 \mathrm{M}\) aluminium hydroxide is (assuming complete ionization).

Mention the steps involved in ionization of phosphoric acid.

How is \(\mathrm{NH}_{4} \mathrm{OH}\) helpful as a reagent for the analysis of cations in the aqueous solutions of their salts? Give equations.