Multiple Choice
Calculate the pH in a solution which is made when 20.0 mL of 0.10 M NH3 ( K b = 1.8×10 - 5) is added to 30.0 mL of 0.10 M HCl.
A) 0.02
B) 1.70
C) 4.57
D) 4.74
E) 9.25
Correct Answer:
Verified
Correct Answer:
Verified
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