Chemistry help please? PLEASE explain your answers, thanks!?

Hi---Could someone please help me??? I am struggling! PLEASE explain your answers so I can follow you. Thanks to all. All help is greatly appreciated! :) Calculate each of the following quantities: (a)Mass in grams of 0.64 mol of MnSO4 (b)Moles of compound in 15.8 g of Fe(ClO4)3 (c)Number of N atoms in... show more Hi---Could someone please help me??? I am struggling! PLEASE explain your answers so I can follow you. Thanks to all. All help is greatly appreciated! :)

Calculate each of the following quantities:

(a)Mass in grams of 0.64 mol of MnSO4
(b)Moles of compound in 15.8 g of Fe(ClO4)3
(c)Number of N atoms in 92.6 g of NH4NO2
2 answers 2