In order to prepare 5 L of 2.0 M H₂SO₄
Molarity M =Number of Moles of solute, in moles / Volume of solvent in dm³
Note M is in Mol/dm³
Note that 1000cm³ = 1dm³ = 1 Liter
Volume of solvent = 5 L = 5 dm³
2 mol/dm³ = Number of moles / 5dm³
Number of moles = 2 mol/dm³ * 5dm³
Number of moles = 10 moles.
Option (3) is the answer.
I hope this helps.
