How many mols do you need? That's mols = M x L = ?
Then mols = grams/molar mass. You know mols and molar mass, solve for grams.
How much SrCl2 is needed to make 100ml of 2.0 molar SrCl2 solution?
2 answers
molar means moles per liter of solution
0.1 L of 2.0 M solution contains 0.2 moles of solute
0.1 L of 2.0 M solution contains 0.2 moles of solute