Question: how many moles in calcium chloride?
Answer: The molar mass of CaCl2 is 110.98 g/mol. The conversion factor that can be used is then based on the equality that 1 mol = 110.98 g CaCl2. Dimensional analysis will allow you to calculate the mass of CaCl2 that you should measure. When you measure the mass of 333 g of CaCl2, you are measuring 3.00 moles of CaCl2.