How many moles does 109.4?

To determine the number of moles in 109.4 grams of a substance, you need to know its molar mass (the mass of one mole of that substance). The number of moles can be calculated using the formula: moles = mass (grams) / molar mass (g/mol). Once you have the molar mass, you can divide 109.4 grams by that value to find the number of moles.