1. The problem statement, all variables and given/known data Show that 1kg of CaF2 equals 13 mol. 2. Relevant equations Molar mass CaF2 = 78.074g/mol 3. The attempt at a solution I can take 78.074g/mol CaF2 * 13 mol = 1014.962 g CaF2 But I can't do this equation backwards, I'm missing a step. I would think if I'm converting g/mol to mol, I would divide by how many grams I have (1000 in this case), but 78.074g/mol CaF2 / 1000g [tex]\neq[/tex] ~13mol. Edit: I'm dumb. 1000/78.074 = ~13mol. Kill me now.