How many atoms of hydrogen are there in 36 gram of `NH_4`

How many gram atoms of hydrogen are present in 0.04 mole of CuSO_(4), 5H_(2)O ?

How many odd factors of 36 are?

How many atoms are there in 0.25 mole of hydrogen ?

How many carbon and hydrogen atoms are there in Propane, respectively?

How many gram molecules of H_(2)SO_(4) , are present in 4.9 g of the acid? (b) How many atoms of hydrogen and oxygen are present in 0-15 mole of water (H_(2)O) ?

How many atoms of oxygen and hydrogen are present in 0.15 mole of water ?