## Chemistry: The Molecular Science (5th Edition)

The volume of this solution is equal to 5080 ml, or $5.08 \times 10^3$ ml.
1. Determine the molar mass of this compound (NaOH): 22.99* 1 + 16* 1 + 1.008* 1 = 39.998 g/mol 2. Calculate the number of moles: $mm(g/mol) = \frac{mass(g)}{n(mol)}$ $39.998 = \frac{25}{n(mol)}$ $n(mol) = \frac{25}{ 39.998}$ $n(mol) = 0.625$ 3. Find the volume: $Concentration(M) = \frac{n(mol)}{V(L)}$ $0.123 = \frac{0.625}{V(L)}$ $V(L) = \frac{0.625}{0.123}$ $V(L) = 5.08$ 4. Convert the volume into ml: 5.08 L $\times \frac{1000 ml}{1L } = 5080 ml$