A sample of an unknown substance has a total mass of 73.81g. It consists of 49.5g C, 8.80g H, and 15.51g O. Determine the empirical formula.

An example of technology is the a. addition of a side group to an organic molecule during synthesis. b. use of a new antibiotic to fight an infection. c. measurement of iron concentration in a water sample. d. study of atomic fusion reactions

Using the periodic table, complete the table to describe each atom. type in your answers.a ? b? c? d? e? f?

What is the mass of sodium in 3 moles of sodium chloride