Question

how many moles of ammonia have same mass of 3of carbondioxide

Answer 1

Mass of 1 mole of CO2 = 12 + 2(16) = 44 u

Therefore mass of 3 moles = 132 u


Mass of 1 mole of NH3 = 14 + 3 = 17

Therefore no. Of moles = 132/17 = ~7.7 moles

Answer 2

Molecular mass of Ccarbon dioxide is
C-12
O-2×16=32
then carbon dioxide molecular mass equalls to 12+32=44
then,3 moles of carbon dioxide is 3×44=132
then,
N-14
H-1×3=3
then,ammonia molecular mass is 14+3=17
then moles of ammonia have same masd of 3 of carbon dioxide is
132÷17=7.7647059
~_7.8