Chemistry, 24.04.2020 23:53 maddymaddy
Phosphoric acid is a triprotic acid (Ka1=6.9×10−3 M, Ka2=6.2×10−8 M, and Ka3=4.8×10−13 M) . To find the pH of a buffer composed of H2PO−4(aq) and HPO2−4(aq) , which pKa value would you use in the Henderson–Hasselbalch equation? pKa1=2.16 pKa2=7.21 pKa3=12.32 Calculate the pH of a buffer solution obtained by dissolving 16.0 g KH2PO4(s) and 27.0 g Na2HPO4(s) in water and then diluting to 1.00 L.
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Phosphoric acid is a triprotic acid (Ka1=6.9×10−3 M, Ka2=6.2×10−8 M, and Ka3=4.8×10−13 M) . To find...
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