a Which combination can be used to make a buffer with a pH of 9.3? The Ka of benzoic acid, C6H5COOH, is 6,5x10-5 and the
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a Which combination can be used to make a buffer with a pH of 9.3? The Ka of benzoic acid, C6H5COOH, is 6,5x10-5 and the
a Which combination can be used to make a buffer with a pH of 9.3? The Ka of benzoic acid, C6H5COOH, is 6,5x10-5 and the Ka of hydrocyanic acid, HCN, is 4.9x10-10 50.0 mL of 0.500 M HCN and 25.0 mL of 0.500 M sodium hydroxide. 50.0 mL of 0.500 M HCN and 50.0 mL of 0.500 M sodium hydroxide. 50.0 mL of 0.500 M C6H5COOH and 50.0 mL of 0.500 M sodium hydroxide, 50.0 mL of 0.500 M C6H5COOH and 25.0 mL of 0.500 M sodium hydroxide.
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