Dopamine has a percent composition as follows: C 62.73%, H 7.24%, N 9.14%, 0 20.89%. Show all work for credit (6pts)
a. What is the empirical formula of dopamine?
b. If the molar mass of dopamine is 153.18g/mol, what is the molecular formula?

Which substance has non polar covalent bonds

Scientists often have to deal with numbers that are either very large or very small. for example, the radius of the sun is approximately 696,000 kilometers, while bacterial cells are as small as 1.9 × 10-4 millimeters. express each number in an alternate form.

Using the periodic table, complete the following. element: hydrogen symbol: h₂ molecular weight: g mass of one mole: g/mol