Question

A 10.0-milliliter sample of NaOH(aq) is neutralized by 40.0 milliliters of 0.50 M HCl. What is the molarity of the NaOH(aq)?

Answer 1

`(10 mL)/(1000 mL) = 0.01 L`


`(40mL)/(1000mL) =0.04L`


`M _(1) V_(1)=M_(2)V_(2)`


`M_(1)(0.01)=(0.50)(0.04)`


`M_(1)(0.01)=0.02`


`M_(1)= (0.02)/(0.01)`


`M_(1)=2`