Question

Dilutions Worksheet - Solutions

Answer 1

Answer:

$\large \boxed{\text{0.64 mol/L}}$

Explanation:

The original solution was diluted from 250 mL to 295 mL

We can use the dilution formula to calculate the concentration of the diluted solution.

$\begin{array}{rcl}V_{1}c_{1} & = & V_{2}c_{2}\\\text{250 mL }\times \text{0.75 mol/L} & = & \text{295 mL} \times c_{2}\\c_{2}& = & \dfrac{250}{295}\times \text{0.75 mol/L}\\\\& = & \text{0.64 mol/L}\\\end{array}\\\text{The molar concentration of the diluted solution is \large \boxed{\textbf{0.64 mol/L}} }$