Justin bleeber is a lazy young man and decides to burn a pile of leaves instead of bagging it. the pile of leaves weighed three pounds before being burned. after the leaves are burned the leftover ash weighs half a pound. what happened to the rest of the mass of the leaves? a) it was destroyed. b) it soaked into the ground. c) it compacted into the ash. d) it was turned into smoke and gas.

Answer is: D) It was turned into smoke and gas.

Conservation of mass (mass is never lost or gained in chemical reactions), during chemical reaction no particles are created or destroyed, the atoms are rearranged from the reactants to the products.

Gas that escaped is probably carbon(IV) oxide and little carbon(II) oxide, so the mass of product measured is less than reactants.

If mass of gas is also measured, masses of reactants and products are the same.

the ideal gas law equation is as follows

pv = nrt

where p - pressure

v - volume

n - number of moles

r - universal gas constant

t - temperature

so if the pressure, volume and temperature are already known

we are left with n and r

since r is the universal gas constant that has a known fixed value then r too is known

so we are left with 'n'

once we know temperature volume and pressure

we can find the number of moles of gas present using the ideal gas law equation

this is not my own answer, this is an answer for the same question by the user blahblahmali. i do not claim ownership of this account.

fe 55.85 g/mol and h2o 18.02 g/mol.