Calculate [H+] in a 0.40 M solution of NaH2PO4. (For H3PO4, Ka1 = 7.5 × 10-3, Ka2 = 6.2 × 10-8, Ka3 = 4.8 × 10-13)
A) 1.6 × 10-4 M
B) 2.5 × 10-4 M
C) 0.40 M
D) 3.9 × 10-11 M
E) 2.2 × 10-5 M
Correct Answer:
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