# Problem: Calculate the pH of the following solutions: Buffer 1: 25.0 mL of 0.20 M acetic acid with 35.0 mL of 0.10 M NaOH. Buffer 2: 50.0 mL of 0.18 M NH3 with 5.0 mL of 0.36 M HBr.

###### FREE Expert Solution

Part A. We are being asked to determine the pH of the buffer of 25.0 mL of 0.20 M acetic acid with 35.0 mL of 0.10 M NaOH.

CH­3COOH (weak acid) will react with NaOH (strong base).

Reaction:

CH3COOH(aq) + NaOH(aq) CH3COO(aq) + H2O(l)

***Na+ is a neutral ion and has no contribution to pH

82% (84 ratings) ###### Problem Details

Calculate the pH of the following solutions:

Buffer 1: 25.0 mL of 0.20 M acetic acid with 35.0 mL of 0.10 M NaOH.

Buffer 2: 50.0 mL of 0.18 M NH3 with 5.0 mL of 0.36 M HBr.

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