Molarity is a concentration unit, defined to be the number of moles of solute divided by the number of liters of solution.
M=mol/L, 0.323M=mol/0.01325. Rework to solve for mol and bam! (I.e. times the two numbers)
Answer:

Explanation:
1. Take in account the sulfuric acid at STP:

2. Density is expressed as the ratio between the mass and the volume of a substance so:

Solving for m:

3. Replace values:


First gap is BY USING MAGNETS
2nd is ELECTROLYSIS
3rd is EVAPORATION