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1) What is the pH of a 0.246 M aqueous solution of sodium acetate, NaCH3COO? This...

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Chemistry

1) What is the pH of a 0.246 M aqueous solution of sodiumacetate, NaCH3COO? This solution is acidic, basic or neutral?

2) The substance benzoic acid(C6H5COOH) is a weak acid(Ka = 6.3×10-5). What is thepH of a 0.110 M aqueous solution ofsodium benzoate,NaC6H5COO?This solution is acidic, basic or neutral?

3) What is the pH of a 9.17×10-2 Maqueous solution of ammonium nitrate,NH4NO3? This solution isacidic, basic or neutral?

Answer & Explanation Solved by verified expert
3.7 Ratings (411 Votes)
AS we know that Sodium acetate is a strong saltCH3COONa CH3COO Na CH3COO 01 the equillibrium isCH3COO H2O CH3COOH OHinitial 01 0 0change x x xat equilibrium 01 x x xKb CH3COOH OH CH3COOKa for acetic acid 175 10 5Kb for acetate KwKa 1014 175 10 5 571 1010571 1010 X2 01 x0571 1010 571 1010 x x2x2 571 1010 x 0571 1010 0 using quadratic formulae we solve for xx b b2    See Answer
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