Data:
\(M_{concentrated} = 2.5\:mol\)
\(V_{concentrated} = ?\)
\(M_{dilute} = 0.50\:mol\)
\(V_{dilute} = 100\:mL\to0.100\:L\)
Formula: Dilution Calculations
\(M_{concentrated} * V_{concentrated} = M_{dilute} * V_{dilute}\)
Solving:
\(M_{concentrated} * V_{concentrated} = M_{dilute} * V_{dilute}\)
\(2.5 * V_{concentrated} = 0.50 * 0.100\)
\(2.5V_{concentrated} = 0.05\)
\(V_{concentrated} = \frac{0.05}{2.5}\)
\(\boxed{\boxed{V_{concentrated} = 0.02\:L\:or\:20\:mL}} \end{array}}\qquad\quad\checkmark\)
