Question

How to find molecular mass in finding empirical formula?

Answer 1

Calculate the empirical formula mass. You determine this number by finding the mass of HO (1 hydrogen atom and 1 oxygen atom). Divide the gram molecular mass by the empirical formula mass. Multiply each of the subscripts within the empirical formula by the number calculated

Answer 2

Start with the number of grams of each element, given in the problem.

Convert the mass of each element to moles using the molar mass from the periodic table.

Divide each mole value by the smallest number of moles calculated.

Round to the nearest whole number. This is the mole ratio of the elements and is.