Respuesta :

dakodacox69

Answer:

20.0 g H2 x 1 mole H2/2g = 10.0 moles

moles NH3 = 10.0 mol H2 x 2 mol NH3/3 mol H2=6.67 moles

mass NH3 = 6.67 moles x 17g/mol = 113 grams