Converting Moles to Grams Calculate the mass, in grams, of 0.433 mol of calcium nitrate. What is the mass, in grams, of (a) 0.50 mol of diamond (C) and (b) 0.155 mol of ammonium chloride?
Answer ; Step1 In chemistry, the mole is the standard measurement of amount. When substances react, they do so in simple ratios of moles. However, balances give readings in grams. Balances DO NOT give readings in moles. So the problem is that, when we compare amounts of one substance to another using moles, we must convert from grams, since this is the information we get from balances. There are three steps to converting moles of a substance to grams: 1. Determine how many moles are given in the problem. 2. Calculate the molar mass of the substance. 3. Multiply step one by step two. Make sure you have a periodic table and a calculator handy. The three steps above can be expressed in the following proportion: