Here is the problem. I have a series of questions that I don't know how to do. They are all basically the same so I will just give an example of one and if I could get a point the right direction that would be great! The molar mass of an important industrial solvent is 78.0 g and its empirical formula is CH. What is its molecular formula? Anther slightly related question that might be answered as part of the first question is How many moles are in 35 g of potassium chloride?