**$\mathbf{Molarity}\mathbf{}\mathbf{=}\mathbf{}\frac{\mathbf{mol}\mathbf{}\mathbf{solute}}{\mathbf{L}\mathbf{}\mathbf{solvent}}\phantom{\rule{0ex}{0ex}}\mathbf{mol}\mathbf{}\mathbf{solute}\mathbf{}\mathbf{=}\mathbf{}\mathbf{Molarity}\mathbf{}\mathbf{\times}\mathbf{}\mathbf{L}\mathbf{}\mathbf{solvent}\phantom{\rule{0ex}{0ex}}\mathbf{mol}\mathbf{}\mathbf{solute}\mathbf{}\mathbf{=}\mathbf{}\mathbf{16}\mathbf{}\frac{\mathbf{mol}}{\overline{)\mathbf{L}}}\mathbf{}\mathbf{\times}\mathbf{}\mathbf{100}\overline{)\mathbf{}\mathbf{mL}}\mathbf{}\mathbf{\times}\frac{{\mathbf{10}}^{\mathbf{-}\mathbf{3}}\mathbf{}\overline{)\mathbf{L}}}{\mathbf{1}\mathbf{}\overline{)\mathbf{mL}}}$**

**mol solute = 1.6 mol**

Write a detailed set of instructions for making two solutions: (1) 100 mL of 16 MNaOH from solid sodium hydroxide and (2) 1.00 L of 0.1 M NaOH from your first solution. You have in your lab: volumetric flasks marked to contain 100.0 mL and 1.000 L, a graduated cylinder, and a balance.

Calculate the mass of solid sodium hydroxide needed for making a 100 mL solution of 16 MNaOH.

Frequently Asked Questions

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Molarity concept. You can view video lessons to learn Molarity. Or if you need more Molarity practice, you can also practice Molarity practice problems.