Question 1
If 25 mL of 0.750 M HCl are added to 100. mL of 0.339 M NaOH, what is the final pH?
◦
13.08◦
0.92◦
13.43◦
0.57◦
7.00Question 2
If 25.0 mL of 0.451 M NaOH solution is titrated with 0.253 M H2SO4, the flask at the endpoint will contain (besides the indicator phenolphthalein) as the principal components:
◦
sodium hydroxide, sulfuric acid, and water◦
dissolved sodium sulfate and water◦
sodium hydroxide, sodium sulfate, and water◦
dissolved sodium sulfate, sulfuric acid, and water◦
precipitated sodium sulfate and water