A sample of histamine having a mass of 385 mg is composed of 208 mg of carbon, 31 mg of hydrogen, and 146 mg of nitrogen and has a mass of 111.0 g/mol. what is the molecular formula for histamine?

Question

anonymous · Answer

what are the ratios between the numbers of carbon, hydrogen, and nitrogen atoms in this sample? 

are there any other elements present besides C, H, and N? 

what would these pieces of evidence tell us about what the empirical formula look like? 

how do we use the molecular weight to relate the molecular formula to the empirical formula?