Find the mass of .89 moles of CaCl2?

Question

Can you show how to do it please

Answer 1

This is very simple:

Find the molar mass of CaCl2 and multiply by the number of moles.

Ca weighs 40.08 g/mole; Cl weighs 35.45 g/mole.

So CaCl2 weighs 40.08 + (2 x 35.45) = 110.98g/mole. Now we multiply by 0.89 to get the desired mass.

0.89 x 110.98 = 98.77g

Answer 2

that's easy. The formula for mass=moles x molar mass
so, mass=89 moles x the molar mass of cacl2(u need a periodic table for that) to get the molar mass, just add the mass number of ca with the mass number of cl (multiplied by 2 cuz of the 2 in the end). That's it. Hope i helped!