during the burning of coal:
C + O2 = CO2
if 12g of carbon is burnt in plenty of oxygen,what mass of carbon dioxide is produced
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4.8g
m = 12g
M = 12.01
n= m/M
n= 12/12.01
= 0.99916736...
Now for Carbon Dioxide:
n= 0.99916736...
M= 12.01 + 32
= 44.01
m=M.n
= 44.01 x 0.99916736...
= 43.97335554...
= 44g
To find the mass of carbon dioxide produced when 12 grams of carbon is burnt in plenty of oxygen, you need to use the balanced equation for the combustion of carbon:
C + O2 → CO2
The balanced equation tells us that one mole of carbon reacts with one mole of oxygen to produce one mole of carbon dioxide.
First, calculate the number of moles of carbon using its molar mass. The molar mass of carbon (C) is approximately 12 grams/mol.
So, the number of moles of carbon = mass of carbon / molar mass of carbon
= 12 g / 12 g/mol
= 1 mol
Since the balanced equation shows that one mole of carbon produces one mole of carbon dioxide, the number of moles of carbon dioxide formed will also be 1 mole.
Now, calculate the mass of carbon dioxide using its molar mass. The molar mass of carbon dioxide (CO2) is approximately 44 grams/mol.
So, mass of carbon dioxide = number of moles of carbon dioxide x molar mass of carbon dioxide
= 1 mol x 44 g/mol
= 44 g
Therefore, when 12 grams of carbon is burnt in plenty of oxygen, the mass of carbon dioxide produced is 44 grams.