6.A solution is made up of 50 mL of 0.065 mol/L HCl(aq) and 65 mL of 0.050 mol/L NaOH(aq). What is the pH of the resulting solution?

A. 1.19 B. 1.30 C. 7.00 D. 12.81 E. 12.70

7. A concentrated weak acid is best described as which of the following? A. a solution with a low pH B. a solution where the concentration of undissociated acid particles is low compared to the concentration of hydronium ions C. a solution where the concentration of hydronium ions is large compared to the concentration of undissociated acid particles D. a solution with a high pH E. a solution where the concentration of undissociated acid particles is high and the relative quantity of hydronium ions is small