Chemistry, 13.12.2019 17:31 Kstearns694
Citric acid ( h 3 c 6 h 5 o 7 h3c6h5o7 ) has p k a pka values of 3.128 ( p k a1 pka1 ), 4.761 ( p k a2 pka2 ), and 6.396 ( p k a3 pka3 ).
a. what is the predominant form of citric acid at ph 4.23 4.23 ? hc 6 h 5 o 2 − 7 hc6h5o72− h 2 c 6 h 5 o − 7 h2c6h5o7− h 3 c 6 h 5 o 7 h3c6h5o7 c 6 h 5 o 3 − 7 c6h5o73−
b. what is the predominant form of citric acid at ph 6.05 6.05 ? h 3 c 6 h 5 o 7 h3c6h5o7 c 6 h 5 o 3 − 7 c6h5o73− h 2 c 6 h 5 o − 7 h2c6h5o7− hc 6 h 5 o 2 − 7 hc6h5o72−
c. what is the second most abundant species of citric acid at ph 4.23 4.23 ? c 6 h 5 o 3 − 7 c6h5o73− h 2 c 6 h 5 o − 7 h2c6h5o7− h 3 c 6 h 5 o 7 h3c6h5o7 hc 6 h 5 o 2 − 7 hc6h5o72−
d. what is the second most abundant species of citric acid at ph 6.05 6.05 ? c 6 h 5 o 3 − 7 c6h5o73− h 2 c 6 h 5 o − 7 h2c6h5o7− h 3 c 6 h 5 o 7 h3c6h5o7 hc 6 h 5 o 2 − 7
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Citric acid ( h 3 c 6 h 5 o 7 h3c6h5o7 ) has p k a pka values of 3.128 ( p k a1 pka1 ), 4.761 ( p k...
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