1. What is the pH of a solution containing 0.20mol of NH4Cl and 1.5mol of NH3? Kb = 1.8 x 10-5

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Chapter1: Chemical Foundations
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1. What is the pH of a solution containing 0.20mol of NH4Cl and 1.5mol of NH3? Kb = 1.8 x 10-5

2. What is the pH of a buffer solution consisting of 25.0g HC2H3O2 and 45.0g of NaC2H3O2 in 625 ml solution? Ka= 1.76 x10-5

3. A student prepares a buffer solution containing C2H5COOH and C2H5COO-. The concentration of C2H5COOH and C2H5COO- are both 1.00M. The Ka = 1.35 x 10-5.

      a. Calculate the pH of the buffer solution. 

      b. Calculate the pH of the new buffer after the student adds 5ml of 1M NaOH

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