Calculate the number of moles of solute in 154.8 L of 0.675 M sodium cyanide.

Question

Calculate the number of moles of solute in 154.8 L of 0.675 M sodium cyanide.

_______ moles of solute

Answer 1

The definition of molarity (M) is moles of solute per liter of solution (moles/L).

We are given the molarity and the volume so we can solve for moles.

154.8 L x 0.675 moles/L = 104 moles (to 3 sig. figs.)