0.5 mL of toluene react with 1.0 mL of 1 M solution of bromine in CH2Cl2. Calculate the number of mols of each reagent (bromine and toluene)?

From Wikipedia :
Density of toluene (C₇H₈) = 0.87 g/mL
Molar mass of toluene = 92.14 g/mol

No. of moles of toluene = (0.5 mL) × (0.87 g/mL) / (92.14 g/mol) = 0.0047 mol
No. of moles of bromine = (1 mol/L) × (1/1000 L) = 0.001 mol