What is the pH of an aqueous solution at 25.0 °C that contains 3.98 × 10-9 M hydroxide ion?
A) 8.40
B) 5.60
C) 9.00
D) 3.98
E) 7.00
Correct Answer:
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Q38: Using the data in the table, which
Q39: Using the data in the table, which
Q40: Which of the following aqueous solutions has
Q41: The conjugate acid of CH3NH2 is _.
A)CH3NH2
B)CH3NH3+
C)CH3NH2+
D)CH3NH+
E)none
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
Q47: The conjugate acid of HSO4- is _.
A)SO42-
B)H2SO4
C)HSO4+
D)H+
E)HSO3+
Q48: What is the pOH of an aqueous
Q58: Which of the following acids will be
Q59: Of the following,which is the strongest acid?
A)HClO
B)HClO3
C)HClO2
D)HClO4
E)HIO
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