2 C2H6 + 7 O2 -> 4 CO2 + 6 H2O

Use the given equation for the following questions:

If 20 moles of fuel are combusted in the above equation, how many moles of O2 are consumed?

If 20 moles of fuel are combusted in the above equation, how many moles of CO2 are produced?

Give a balanced chemical equation for when liquid octane (C8H18)is combusted in oxygen gas to yield carbon dioxide gas and watervapor?
Express in words (write a sentence) which describes this reactionusing the stoichiometric coefficients.
Express in words (write a sentence) which describes this reactionusing the stoichiometric coefficients and reacting 100 molecules ofoctane.
Express in words (write a sentence) which describes this reactionusing the stoichiometric coefficients and reacting 1 mole of octanemolecules.
Give the balanced chemical equation for the combustion of liquidethanol (CH3CH2OH) in oxygen gas to produce carbon dioxide andwater vapor.
How many molecules of carbon dioxide are produced when 1 moleculeof ethanol is combusted?
How many moles of carbon dioxide molecules are produced when 1 moleof ethanol is combusted?

How many moles of oxygen are consumed when 1.356 moles of water areproduced?
How many moles of oxygen are consumed when 1.356 moles of carbondioxide are produced?
How many moles of oxygen are consumed when 1.356 moles of ethanolare also consumed?

1. Consider the reaction of Al with Ag2S to produce the productsshown : 2Al + 3Ag2S = 6 Ag + Al2S3

a. How many moles of Ag2S are needed to produce6.50 moles of Al2S3 in the above equation ?

b. How many grams of Al2S3 can be produced from4.00 moles of Al in the above equation?

2. Find the molarity of a solution that contains 17g of NH3 in0.50 L of solution ?

3. What volume of a 2.00 M KCl solution is required to prepare500. ml of a 0.100 M KCl ?

using the balanced equation for the combustion of acetylene, answer the following questions. 2H-C triple bond C -H + 5O2=4CO2+2H2O. A) how many moles of o2 are needed to react with 4.40 mol of c2h2? B) how many moles of c2h2 are needes to form 0.10 mol of CO2