\(7.2 \mathrm{mL}\) of \(6.0 \mathrm{M} \mathrm{NaOH}\) are diluted with water to
a volume of \(400.0 \mathrm{mL}\). You are asked to find the molarity of the
resulting solution.
a. First find out how many moles of NaOH there are in 7.2 mL of \(6.0
\mathrm{M}\) NaOH. Use Equation \(1 .\) Note that the volume must be in liters.
b. since the total number of moles of NaOH is not changed on dilution, the
molarity after dilution can also be found by Equation 1, using the final
volume of the solution. Calculate that molarity.
