Question

6 kg of coal (carbon) is burned in air. what mass of carbon dioxide will be produced? ignoring any impurities in the coal, the chemical equation for this reaction is: c o2 → co2

Answer 1

14kg

Step-by-step explanation:

your equation is wrong ?

it is meant to be c+o=co

we have the mass of c so we calculate the mole and mole =mass\molar mass

molar mass(M) of carbon is 12 so our mole is

6/12=0.5 mol

note the unit of mole is mol

so since from the equation 1c+1o=1co we see that there is an invincible 1 there fore c and co is 1:1 so therefore o.5 mol of c will produce o.5 mol of Co

if the ratio was 1:2 it would have been therefore 0.5 mol of c will make 0.5/2 mol of Co.

but that is not the case so back to what we were saying. note(just saying and example,not part of answer )

to find mass of Co it will be mole = mass/ M

so mass= mole × molar mass and the molar mass of Co is (12)+(16)=28 kg/mol so our mass will be 0.5×28= 14kg

therefore the mass of Co is 14kg