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1a. determine the pH of a citrate buffer that is 0.14 M citric acid (H3C6H5O7) and...

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Chemistry

1a. determine the pH of a citrate buffer that is 0.14 M citricacid (H3C6H5O7) and 0.18 M sodium citrate (NaH2C6H5O7). (What if itwere 0.14 sodium citrate and 0.18 M disodium citrate(Na2HC6H5O7)?

2a. For the origional citrate buffer in question 1a, determinewhat the pH will be if 10mL of 1.09 M HCl solution is added to250mL of the buffer?

3a. For the origional citrate buffer in wuestion 1a, determinehow much 1.09 M HCl could beadded before you excedd the effectivecapacity of the buffer. (How much 1.09 M HCl would be required toget [A-]/[HA} to equal 0.1)?

Answer & Explanation Solved by verified expert
3.9 Ratings (468 Votes)
1a H3C6H5O7 is the acid and its molarity is given as o14M and NaH2C6H5O7 is the conjugate base with molarity 018M Here we need Pka1 for the acid and it is 315 From handerson    See Answer
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