Question- calculate the ph of a solution that is 025m in hf, Chemistry

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Question- calculate the ph of a solution that is 025m in hf

Question- 1) Calculate the pH of a solution that is 0.25M in HF and 0.15M in NaF.

2) Use the Henderson-Hasselbalch equation to calculate the pH of a buffer solution that is 0.24M in formic acid (HCO2H) and 0.47M in sodium formate (HCO2Na).

I need the Ka values for these however I do not have my textbook handy. Any explanations would be appreciated and rated. Thanks for your time.

I need proficient help to solve the above problem

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Chemistry: Question- calculate the ph of a solution that is 025m in hf

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Chemistry: Question- calculate the ph of a solution that is 025m in hf

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