1- What is the pH of an aqueous solution of 4.6910 -3 M hydrobromic acid ? pH =——– 2- What is the pH of an aqueous solution of 6.8610 -3 M

1- 4.69×10-3hydrobromic acid

pH = ——–

2- 6.86×10-3potassium hydroxide

pH = —–

3- The pH of an aqueous solution of 0.332 M hydrocyanic acid is ——–

4- 0.332trimethylamine (a weak base with the formula (CH3)3N) 

0.124potassiumfluorideKF

This solution is_________ acidic, basic, neutral