Correct this Mol Question?

[iNerd]

Hey; we weren't given the sols and I'm just wondering if I've done all of this correct [ mainly worried about part (f) ]
Appreciate it if you could correct it.
Thanks

Ethanol undergoes combustion with oxygen.
a) Show the balanced eq.
b) What is the mass of one mol of ethanol
c) Determine the amount [ no. of mol ] in 10g of ethanol
d) How many mole of carbon atoms in 10g of ethanol?
e) Determine the % composition of carbon in ethanol
f) What mass of carbon dioxide is produced if 10g of ethanol is burnt.

MY ANSWERS
a) C₂H₅OH + 3O₂ >>>> 2CO₂ + 3H₂O
b) (12x2) + (1x5) + 16 + 1 = 46gmol ^ -1
c) n = m/M ....n = 10/46......n = 5/23 mol so approximately 0.217mol.
d) 2mol of carbon atoms so 0.217 times 2 = 0.434 mol.
e) 24g of carbon in ethanol so 24/46 times 100 = 52.17%
f) Ratio: what we want/what we know
          : 2:1
Mol of ethanol reacting as found above is 5/23mol therefore mole of Carbon dioxide produced is 5/23 times 2 = 10/23mol
n = m/M therefore m = nM
m = 10/23mol times molar mass of carbon dioxide
M(carbon dioxide) = 12 + (16x2) = 44gmol ^ -1
therefore m = 10/23 times 44
therefore 19.13grams of carbon dioxide is produced

[iNerd]

Anyone?

[2317]

b) Answer is 46 grams. not grams/mol (Theyre asking for mass not molar mass.)

rest seems ok.

[iNerd]

b) Answer is 46 grams. not grams/mol (Theyre asking for mass not molar mass.)

rest seems ok.

FOR SURE? really? I got part (f) right? :coolsmiley:

[m@tty]

b) Answer is 46 grams. not grams/mol (Theyre asking for mass not molar mass.)

rest seems ok.

FOR SURE? really? I got part (f) right? :coolsmiley:

Yep. All correct.

[2317]

yeah its correct

[iNerd]

Hahahahaha im ecstatic! finally get this shit ...thanks guys; karma will be dished out appropiately