8.58 grams of CaCl2 is dissolved in H2O. How many moles of CaCl2 dissolved?

Answer 1

This question is a stoichiometry question!

We need to convert mass to moles.

First we need to find the molar mass of calcium chloride. MM of calcium chloride is 110.98 g/mol.

8.58 grams CaCl2*(1 mol CaCl2/110.98 g CaCl2) = number of moles of CaCl2

Hope that helps!