Molarity Worksheet
Molarity (M) = moles/L
1 mole (mol) = 6.02214076 x 1023 particles (molecules or atoms)
M = n/v
v = volume in Liters
n = # of moles
weight of 1 mol = molecular weight in grams (g)
1) What is the molarity of a 1 L solution containing 2.0 moles of NaCl?
2) Calculate the molarity of 0.50 moles of FeCl3 dissolved in 120 ml of solution?
3) How many moles of NaCl are present in 550 ml of a 4.0 M NaCl solution?
4) How many liters of solution are needed to make a 1.5M solution containing 3.0 moles
of FeCl3?
5) What is the molarity of a 550 ml solution containing 65 g of MgCl2?
6) What volume of a 0.80 M solution can be made using 120 g of FeCl3?
7) How many grams of Mg(OH)2 are needed to produce 450 ml of a 1.6 M Mg(OH)2
solution?