CO2 has 1 carbon atom and 2 oxygen atoms. Carbon has an atomic mass of about 12 and oxygen 16. The total for carbon dioxide is 12 + 16 + 16 = 44. The make 88gms you would need the same proportion in grams as the proportion of atomic masses. The answer is therefore 64 grams of oxygen. For each tonne of carbon burnt the oxygen from 15000 cubic metres of atmosphere is needed.
85g of oxygen is
85/16 = 5.3125 moles of atoms.
There are 2 moles of O atoms per mole of carbon dioxide, so there are 2.65625 moles of carbon dioxide.
This is 2.65625 x 44 g = 116.875 g
The chemical equation for this reaction is:
C3H8(g) + 5O2(g) (arrow) 4H2O(l) + 3CO2(g)
Using stoichiometry, 5 moles of oxygen are needed to burn 1 mole of C3H8. 96.6 grams is equal to 0.5889 moles. You multiply this by five to find the amount of moles of O2 required, which is 2.945 moles. Converting this to grams gives 94.24 grams of O2.
85.6 g C * 1 mol C/12 g C * 1 mol O2/1 mol C * 32 g O2/1 mol O2 = 228.27 g O2
Just set it up like this so you can do unit conversion and ta dum! You get the answer you're looking for!
C+O2->CO2
proportion: 84,9g(C)- Xg (O2)
12g (MrC)- 32(MrO2)
84,9*32=12X
X=226,4g (O2)
4 C3H8 + 20 O2 ---> 12 CO2 + 16 H2O So 20 mol of O2 are needed.
First you need to write a balanced equation. You are given that propane undergoes a combustion reaction that produces carbon dioxide and water.Unbalanced: C3H8 + O2 ---> CO2 + H2OBalanced: C3H8 + 5O2 ---> 3CO2 + 4H2OGivens:42.0 grams C3H8 (Molecular mass 44.0 g)115.0 grams O2 (Molecular mass 32.0 g)Molecular mass of CO2: 44.0 gMole ratio 1:5:3:4 (C3H8:O2:CO2:H2O)Then you need to find which of the reactants are the limiting reactant (lowest value) and which is the excess reactant. The limiting reactant is what you will base the rest of the problem on. To do this, you convert each measurement to moles from grams.42.0 g C3H8 / (44.0 g) = .955 moles C3H8 115.0 g
[ 34.3(gC3H8) / 44(g/mol C3H8)] * [ 3mol CO2 / 1molC3H8 ] * 44(g/mol CO2) = 103 gram CO2
Out of one mole C3H8 three moles carbondioxide (CO2) are formed by complete combustion of it.So 2.13 mole C3H8 make 3*2.13 mole CO2 = 6.39 moleCO2
C3H8 + 5O2 ==> 3CO2 + 4H2O balanced equationmole ratio O2:C2H8 = 5:1 1.5 moles C3H8 x 5 moles O2/mole C3H8 = 7.5 moles O2 needed
The balanced equation is C3H8 + 5O2 ---> 3CO2 + 4H2O moles C3H8 = 23.7 g x 1 mol/44 g = 0.539 moles moles O2 needed = 5 x 0.539 moles = 2.695 moles O2 (it takes 5 moles O2 per mole C3H8) grams O2 needed = 2.695 moles x 32 g/mole = 86.2 grams O2 needed (3 sig figs)
You have to burn C3H8 in O2. You get 3CO2 plus 4H2O. So to burn one mole of C3H8, you need 5 moles of O2. That means you need one fifth of C3H8 as compared to O2. So you need 0.567/5 = 0.1134 moles of C3H8. Hence the answer.
Propane ( C3H8 ) Will burn completely in excess oxygen to form water and carbon dioxide;C3H8 + 5 O2 ---> 3 CO2 + 4 H2O
C3H8 + 5O2 --> 3CO2 + 4H2O 2.75 mole C3H8 (5 moles O2/1 mole C3H8)(32 grams/1 moleO2) = 440 grams oxygen required =====================
The reaction isC3H8 + 5O2 ----> 3CO2 + 4H2O100g of propane is approx 2.27 moles.From the equation above, we see that the ratio of C3H8 to CO2 is 1:3, therefore the number of moles of CO2 which form is approx 6.82.This relates to a mass of 300g of CO2
4 C3H8 + 20 O2 ---> 12 CO2 + 16 H2O So 20 mol of O2 are needed.
First you need to write a balanced equation. You are given that propane undergoes a combustion reaction that produces carbon dioxide and water.Unbalanced: C3H8 + O2 ---> CO2 + H2OBalanced: C3H8 + 5O2 ---> 3CO2 + 4H2OGivens:42.0 grams C3H8 (Molecular mass 44.0 g)115.0 grams O2 (Molecular mass 32.0 g)Molecular mass of CO2: 44.0 gMole ratio 1:5:3:4 (C3H8:O2:CO2:H2O)Then you need to find which of the reactants are the limiting reactant (lowest value) and which is the excess reactant. The limiting reactant is what you will base the rest of the problem on. To do this, you convert each measurement to moles from grams.42.0 g C3H8 / (44.0 g) = .955 moles C3H8 115.0 g
5048+w4g5=23vm32
C3H8 + 5O2 -> 3CO2 + 4H2O That is the complete combustion for Propane.
Combustion of propaneC3H8 + 5O2 ==> 3CO2 + 4H2OWhat is the question?
Out of one mole C3H8 three moles carbondioxide (CO2) are formed by complete combustion of it.So 2.13 mole C3H8 make 3*2.13 mole CO2 = 6.39 moleCO2
[ 34.3(gC3H8) / 44(g/mol C3H8)] * [ 3mol CO2 / 1molC3H8 ] * 44(g/mol CO2) = 103 gram CO2