What is the ph of buffer after hydrochloric acid

Reference no: EM13167392

1) A 0.37 M solution of a certain cation has a pH of 4.71. What is the Ka of this cation?

2) 5.0 mL of a buffer is made by mixing 10.0 mL of 0.10 M HF and 5.0 mL of 0.10 M NaOH solution. What is the pH of this buffer after 0.45 mL of 10.0 M hydrochloric acid are added to it? The Ka for HF is 6.8 x 10-4.

Reference no: EM13167392

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