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Ethanol burns according to the following equation. C2H5OH + 3O2 > 2CO2 +3H2O if 15.0 mole of C2H5OH burns this way, how many moles of oxygen are needed?
21,91 mole
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<ol><li>The heat of combustion of 1 mole of C2H4 is given as: </li></ol>C2H4(g) + 3O2(g) → 2CO2(g) + 2H2O(g) ΔHrxn = ? kJ
C2H4 + 3O2 ---> 2CO2 + 2 H2OFrom Appendix table∆H°f C2H4 = 52.3Kj/mol∆H°fCO2= -393.5Kj/mol∆H°f H2O(g) = -241.8Kj/mol∆H°rxn= ∆H°products - ∆H°reactants∆H°rxn = [2(-393.5)+2(-241.8)] - [52.3]∆H°rxn = -1322.9KJ/mol
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when 1 mole of potassium carbonate reacts with 2 mole HCI, 1 mole carbon dioxide and 1 mole water is formed. How many mole potassium chloride is produced?
K2CO3 + 2 HCl = 2 KCl + H2О + CO2According to the balanced equation, in the given conditions 2 moles of potassium chloride will be forned.
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how many moles of iron (III) is produced by 0.030 moles of iron in the following reaction 4fe + 3o2- 2fe2o3
Solution:Balanced chemical equation:4Fe + 3O2 → 2Fe2O3According to stoichiometry: 4 mol of iron (Fe) produces 2 mol of iron(III) oxide (Fe2O3)Thus, 0.030 mol of iron (Fe) produces:(0.030 mol Fe) ×...
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The alcohol in "gasohol" burns according to the following equation.
C2H6O+3O2----> 2CO2+3H2O
If 25 mol of C2H5OH burns this way, how many moles of oxygen are needed
Solution: The amount of substance of Oxygen: n(O2) = 3 mol *25 mol/1 mol = 75 mol Answer: By the reaction 75 mol of oxygen are needed.
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Which of these reactions can be classified as combustion reactions?
Na + Cl → NaCl
CH4 + O2 → CO2 + 2H2O
C2H6O + 3O2 → 2CO2 + 3H2O
2K + MgBr2 → 2KBr + Mg
Two reactions can be classified as combustion reactions: CH4 + O2 → CO2 + 2H2O C2H6O + 3O2 → 2CO2 + 3H2O
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The reaction, c2h6o (I) + 3o2 (g) 2co2 (g) + 3h2o (g), is the combustion of ethanol. What occurs as the reaction proceeds?
Solution: 1. it is a combustion reaction. 2. There is a stormy separation of CO2 and H2O(gas). 3. H2O condenses (turns into a liquid state) after a while. 4. During the reaction a large...
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if 0.3 moles of H2O were produced how man moles of carbon dioxide would also have been produced
C2H6 + 7/2O2 -> 2CO2 + 3H2O
if 0.3 moles of H2O were produced how man moles of carbon dioxide would also have been producedC2H6 + 7/2O2 -> 2CO2 + 3H2OSolution:n(CO2)=2/3*n(H2O);n(CO2)=(2*0,3)/3=0,2 molAnswer:n(CO2)=0,2 mol.
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In the reaction 4Al(s)+3O2(g)-> Al2O3(s)
A. How many moles of oxygen react with 5.5 miles of Al?
B. How many moles of Al2O3 can be produced from 5.5 moles of Al?
A. 4,125B. 1,375
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A sample of a wine contain 28% C2H5OH by volume and rest is H2O. Calculate mole fraction of
C2H5OH in wine, density of C2H5OH = 0.79 gm/ml, density of water = 1 gm/ml.
0.28 x 0.79 = 0.22 g.0.22/46 = 0.004 .
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