I) discuss the theories of indicator. calcuate the following,
ii)pH of a solution containing 0.1M Na2CO3 and 0.2M NaHCO3. Kaz (H2CO3 ) = 4.7 X10-11 .
iii)pH of a solution resulting from adding 4 mL of 0.2 M of NaOH solution to 16 mL of a buffer solution containing 0.1 M CH3COOH ( Ka = 1.8X10-5 ) and 0.2 M CH3COONa
iv)1 500 ml of a 15% v/v solution of methyl salicylate in alcohol is diluted to 1500 ml, what is the percentage strength v/v.?