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13 Dec 2019

2. Octane, C8H18 burns with oxygen, O2 in gas powered cars and trucks.

. (a) Identify the products and write out a balanced chemical reaction.
. (b) If the density of octane is 1.045 g/ml, how many moles of O2 are required

to completely consume an 80.1 liter tank of C8H18?
. (c) How much mass of CO2 will be produced? How much water will be produced?

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Elin Hessel
Elin HesselLv2
17 Dec 2019

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Related questions

The octane rating of gasoline is a relationship of the burningefficiency of the given gasoline mixture to the burning efficiencyof octane (C8H18). (Figure1) Like most hydrocarbons, octane reacts with oxygen gas toproduce carbon dioxide and water. The unbalanced equation for thisreaction is C8H18(g) + O2(g) ? CO2(g) + H2O(g).

Balanced chemical equation is 2C8H18(g) + 25O2(g) ?16CO2(g) + 18H2O(g).

A)-How many moles of water are produced in this reaction?

B)- After the reaction, how much octane is left?

Please, show me

Part A

Determine the balanced chemical equation for this reaction.

C8H18(g)+O2(g)?CO2(g)+H2O(g)

Enter the coefficients for each compound in order, separated by commas. For example, 1,2,3,4 would indicate one mole of C8H18, two moles of O2, three moles of CO2, and four moles of H2O.

2,25,16,18

Balanced chemical equation

2C8H18(g)+25O2(g)?16CO2(g)+18H2O(g)

Part B

0.240 mol of octane is allowed to react with 0.610 mol of oxygen. Which is the limiting reactant?

oxygen

Part C

How many moles of water are produced in this reaction?

Express your answer with the appropriate units.
H2O produced =

Part D

After the reaction, how much octane is left?

Express your answer with the appropriate units.

5) How much Ca(NO3)2 should be weighed out to have 0.650 mol?

 A) 66.4 g B) 97.68 g C.107 g D. 133 g E 165 g

6) A sample of a compound contains 33.11% Carbon, 695% Hydrogen, 3859% Oxygen, and 21.35% Phosphorus. It has a molecular mass of 290.190.

Calculate (a) Empirical Formula:  (b) Molecular Formula

7) The fuel for your car is a mixture of octane and several other hydrocarbons reacting with oxygen as shown

2 C8H18 + 25 O2 → 16 CO2 + 18 H2O

a) What mass of CO2 will be produced when 125 g of C8H18 react completely in the following equation? 

b) Identify the LIMITING REAGENT if 25 g of C8H18 and 100 g of 02 are used. 

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