Empirical and Molecular Formulas

Match it! Select the correct answer from the pull down...Good luck!

A formula with the lowest whole # ratio of elements in a compound is called ______________.

A substance has a molecular formula of C8H10N4O2. The empirical formula is

A chemical formula that shows the actual # and kinds of atoms present in one molecule of a compound is called ____________.

The empirical formula of a substance is CH2O. Its molar mass is 180. What is the molecular formula?

All of the following are empirical formulas EXCEPT

Epinephrine (adrenaline) is a hormone secreted into the bloodstream in times of stress. It contains 59.0% C, 7.15% H, 26.20% O, and 7.65% N and has a molar mass of 183 g/mol. What is its molecular formula?

Which of the following is an empirical formula?

A compound is 25.9% nitrogen and 74.1% oxygen. Find its empirical formula.