Question

verify 5 moles of CO2 and 5 moles of H2O do not have the same mass

Answer 1

1mole=1molecular mass
in co2
1mole=mass of co +mass of o2
=12+16*2
=12+32
=44g
inh2o
1 mole =mass of h2 + mass of o
= 1*2+16
=18