(i) Suggest a safe procedure of diluting a strong concentrated acid. (ii) Name the salt formed when…
(i) Suggest a safe procedure of diluting a strong concentrated acid.
(ii) Name the salt formed when sulphuric acid is added to sodium hydroxide and write its pH.
(iii) Dry HCl gas does not change the colour of dry blue litmus paper. Why ?
Solution
(i) The acid must always be added slowly to water with constant stirring.
(ii) Sodium sulphate / Na2SO4
pH = 7
(iii) Dry HCl is unable to ionise
/ Due to absence of hydrogen ion or hydronium ion