How many grams are in 1.20 mol of sodium chloride?

To find the mass of 1.20 mol of sodium chloride (NaCl), you first need to know its molar mass. The molar mass of NaCl is approximately 58.44 g/mol (sodium is about 22.99 g/mol and chlorine is about 35.45 g/mol). Therefore, to calculate the mass, you multiply the number of moles by the molar mass: 1.20 mol × 58.44 g/mol = 70.13 g. Thus, there are approximately 70.13 grams in 1.20 mol of sodium chloride.