Calculate the pOH of a solution at 25.0 °C that contains 1.94 × 10-10 M hydronium ions.
A) 1.94
B) 4.29
C) 7.00
D) 14.0
E) 9.71
Correct Answer:
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Q45: Of the following substances, an aqueous solution
Q46: The conjugate base of H2PO4- is _.
A)PO43-
B)H2PO4
C)H3PO4
D)HPO42-
E)none
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A)SO42-
B)H2SO4
C)HSO4+
D)H+
E)HSO3+
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A)OH-
B)H2SO4
C)SO42-
D)HSO4+
E)H3SO4+
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