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Of the Bases NaOH, H2O, CN-, SO42-, and HPO42-, Which

Question 82

Multiple Choice

Of the bases NaOH, H2O, CN-, SO42-, and HPO42-, which is the weakest? (Ka for HCN is 6.2 × 10-10; Ka for HSO4- is 1.2 × 10-2; and Ka3 for H3PO4, is 4.8 × 10-13)


A) CN-
B) HPO42-
C) SO42-
D) NaOH
E) H2O

Correct Answer:

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