[angelgeek73]

How many grams of oxygen would be used to completely react with 2.30 moles of propyl alcohol (C₃H₇OH)? Then calculate the number of carbon dioxide molecules and finally, the grams of water formed during this reaction. C₃H₇OH+ O₂---->CO₂ + H₂O

[mike]

First determine the molecular weight of propyl alcohol.
Then the molecular weight of oxygen.
Determine the ratio of propyl alcohol molecules to oxygen (2.30 moles of alcohol).
Then determine the mass of oxygen.
Determine the number of moles of CO₂ formed then convert this to molecules (Avogadro).
Determine the number of moles of water formed and its molecular weight.
Then work out the mass of water.

[billnotgatez]

mike -
Would the first step be balancing the equation?

[Donaldson Tan]

Angelgeek73:

C₃H₇OH+ O₂---->CO₂ + H₂O

Would the first step be balancing the equation?

Your chemical equation is not balanced.

[satha13]

1. balance equation with your combustion reaction
2. Use Mole ration to calculate whatever you want
   such as Mole Alcohol (known) / Mole CO2 (unknown)
3. Substitute mole to other units (gram, dm3)

[mike]

mike -
Would the first step be balancing the equation?

Well I am pretty sure that is the same as what I wrote in step 3 of my post Bill, cheers ;-)