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For each of the following solutions, calculate the initial pH and the final pH after adding...

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Chemistry

For each of the following solutions, calculate the initial pHand the final pH after adding 0.010 mol of NaOH.

1. For 240.0 mL of pure water, calculate the initial pH and thefinal pH after adding 0.010 mol of NaOH.

2. For 240.0 mL of a buffer solution that is 0.195M in HCOOH and0.280 M in HCOOK, calculate the initial pH and the final pH afteradding 0.010 mol of NaOH.

3. For 240.0 mL of a buffer solution that is 0.255 M in C2H5NH2and 0.225 M in C2H5NH3Cl, calculate the initial pH and the final pHafter adding 0.010 mol of NaOH.

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Answer & Explanation Solved by verified expert
4.4 Ratings (993 Votes)
1 pH of pure water is 7 OH 0010mol0240L 0042M pOH log OH log 0042M 138 pH pOH 14 pH 14138 1262 2 pH pKa logHCOOHCOOH pKa374 pH 374 log 0280195 39 initial when we add NaOH the OH will react with    See Answer
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