Calculate the PH in a Solution Which Is Made When

question 54

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

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