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

1. Determine the molar mass of this compound ($KMnO_4$): 39.1* 1 + 54.94* 1 + 16* 4 = 158.04g/mol 2. Calculate the number of moles: $mm(g/mol) = \frac{mass(g)}{n(mol)}$ $158.04 = \frac{322}{n(mol)}$ $n(mol) = \frac{322}{ 158.04}$ $n(mol) = 2.037$ 3. Find the volume: $Concentration(M) = \frac{n(mol)}{V(L)}$ $2.06 = \frac{2.037}{V(L)}$ $V(L) = \frac{2.037}{2.06}$ $V(L) = 0.989\ L$