Related questions

Question

7. A buffer is made by combining 5.55 g of NH3 (Kb = 1.8 X 10-) with 4.78 g of HCl and diluting to a volume of 750.0 mL. a. What is the pH? b. What is the pH after adding 60.0 mL of 2.00 M HBr(aq)? c. What is the pH after adding 120.0 mL of 2.00 M HBr(aq)?