What is mass in grams of an ethanol molecule, `C_2H_5OH` ?

What is the mass in grams of a calcium atom, Ca?

What is the mass in grams of a chlorine atom, Cl?

What is the mass in grams of a hydrogen chloride, HCl?

What is the mass of : 0.5 mole of water molecules ?

Calcualte the mass (in grams) of each of the following species. a. Na atom b. S atom c. CH_3Cl molecule d. Na_2 SO_3 formula unit

If the mass of one molecule of water is 18 amu, what is the mass of one mole of water molecules?

Compute the mass of one molecule and the molecular mass of C_(6)H_(6) (benzene). (At mass of C=12, H=1 u).