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6. You need to make a pH = 4.00 buffer starting from 1.50 L of 0.0200 M solution of benzoic acid (C6H5COOH) and some added sodium benzoate salt (NaC6H5COO). a) Find the pH of the solution before adding the salt. b) How many moles of the salt should you add? c) How many grams of the salt should you add?
6. You need to make a pH = 4.00 buffer starting from 1.50 L of 0.0200 M solution of benzoic acid (C6H5COOH) and some added sodium benzoate salt (NaC6H5COO). a) Find the pH of the solution before adding the salt. b) How many moles of the salt should you add? c) How many grams of the salt should you add?
Beverley SmithLv2
15 Jan 2019
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