Q2. Assuming that rubbing alcohol is 70% (w/w) isopropyl alcohol and that its density is 1 kg/L,

a. How many grams of water and how many grams of isopropyl alcohol are there in a liter of rubbing alcohol?

b. How many moles of water and how many moles of isopropyl alcohol (molecular weight 60) are there in a liter of rubbing alcohol?

c. If we decide which is the solute on the basis of weight, is isopropyl alcohol the solute or the solvent?

d. If we decide on the basis of the number of moles, is isopropyl alcohol the solute or the solvent?

e. Considering water as the solute and the isopropyl alcohol as the solvent, what is the molarity of the water in the solution?