Question- 1) How much of 5.0 M NaOH is needed to make 800 mL of 0.1 M NaOH?

2) A student titrated 10.00 mL HCL with standard NaOH in a 125 mL flask. The amount of NaOH needed was 24.50 mL. Calculate the molarity of the HCl solution if the concentration of the standarized NaOH is 0.09430 M. (The blank titration needed 0.10 mL of NaOH.)

3) Many drops of NaOH adhered to the uncleaned spots of a buret after the NaOH was deleivered in a titration of NaOH with HCl. How will this affect the molarity of HCl?

Give reasons or calculations to sustain your answer.