2.4 8 (a) Define in words the following: (1) Ka (ii) p.Ka I (b) Calculate the pH of 0.0005 mol dm³ ethanoic acid when its pKa=4.75 H (80) CH3COOH(39) CH3COO() + K₂= pH =

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Environmental Pollution

Environmental pollution occurs due to some unwanted alteration in the surroundings which results in unfavorable effects on all organisms of that surrounding.