426 Answered Questions for the topic stoichiometry

Stoichiometry Chemistry

05/27/22

How many grams of CO2 are formed from the combustion of 22.7 moles of C8H18?
Octane burns according to the following balanced equation:2C8H18 + 25O2 --> 18H2O + 16CO2How many grams of CO2 are formed from the combustion of 22.7 moles of C8H18?
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Stoichiometry Chemistry

05/20/22

Mass given % Yield
I am completely lost on this hw so any help would be greatly appreciated. Please and thank you!What mass of aspirin(C9H8O4) is produced from 86.4g of C7H6O3 assuming 95.0% yield from the reaction... more
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Stoichiometry Chemistry

05/17/22

How many moles of O2 gas are used to produced 0.75 moles of CO2 @ STP ?
C3H8+5O2=3CO2+H2O__________________________
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Stoichiometry Chemistry

05/17/22

How many moles of oxygen of are needed to produced 5.3 moles of aluminum oxide ?
4AL+3O2=2AL2O2 _______________
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Stoichiometry Chemistry

05/17/22

how many grams of Aluminum Oxide is needed to completely react with 124g of Aluminum?
4AL+3O2 =2AL2O3
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Stoichiometry

05/12/22

If 26.4 moles of CH4 are reacted, how many moles of CO2 will be produced?
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Stoichiometry Chemistry Percent Yield

05/05/22

Chemistry (Stoichiomitry)

Under certain conditions the reaction of ammonia with excess oxygen will produce 29.5% yield of NO. If the actual yield of NO is 157g, find the theoretical yield
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Stoichiometry Chemistry Percent Yield

05/05/22

Chemistry (Stoichiomitry)

Under certain conditions the reaction of ammonia with excess oxygen will produce 29.5% yield of NO. If the actual yield of NO is 157g, find the theoretical yield
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Stoichiometry Chemistry

04/29/22

Determine the mass in grams of CO2 that are produced by the complete reaction of 0.05090 moles of C7H8 (toluene) according to the following combustion reaction: C7H8 + 9 O2 -> 7 CO2 + 4 H2O
I'm having issues with stoichiometry problems and have no idea how to complete something like this. Please help
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Stoichiometry Chemistry Dumb

04/27/22

Stoich question
In a soda-acid fire extinguisher, concentrated sulfuric acid reacts with sodium hydrogen carbonate to produce carbon dioxide to produce carbon dioxide, sodium sulfate, and water._____H2SO4 +... more
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Stoichiometry Math Math Help Stokiamity

04/25/22

how many moles of iron oxide is required to produce 10 moles of carbon dioxide in the reaction 2Fe2 + c= Fe + 3CO2
how many moles of iron oxide is required to produce 10 moles of carbon dioxide in the reaction 2Fe2O3 + c= Fe + 3CO2
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Stoichiometry Chemistry Moles Grams

04/17/22

How many moles of C are in a sample of C5H12 that also contains 22.5 g of H.
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Stoichiometry Chemistry Moles Atoms

04/17/22

How many grams of nitrogen are contained in a sample of C4H9N3O2 that also contains 9.42 x 1024 hydrogen atoms?

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Stoichiometry Chemistry Moles

04/17/22

How many moles of sulfur are contained in a sample of CuSO4 that also contains 3.50 x 1023 oxygen atoms?
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Stoichiometry Chemistry Molar Mass Atoms

04/15/22

How many individual H atoms are in a sample of C2H4Cl2 that also contains 12.1 grams of chlorine?
I really need help with this question. I have no clue how to put it into a formula that I can solve to get the answer.
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Stoichiometry Chemistry

04/12/22

equilibrium - stoichiometry problem - chemistry
Initially, a reaction mixture contains stoichiometric amounts of H2 and I2. The reaction mixture initially contains no HI. At a temperature of 160°C, the conversion rate for the next reaction is... more
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Stoichiometry Chemistry

04/05/22

S + 6 HNO3 → H2SO4 + 6 NO2 + 2 H2O In the above equation, how many grams of water can be made when 9.8 moles of HNO3 are consumed?

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Stoichiometry Chemistry

03/30/22

NaHCO3 + HC2H3O2 --> NaC2H3O2 + H2O + CO2 If you have exactly 12.2g of baking soda, how much vinegar would you need to add to react all of the baking soda?
NaHCO3 + HC2H3O2 → NaC2H3O2 + H2O +_CO2 If you have exactly 12.2g of baking soda, how much vinegar would you need to add to react all of the baking soda?
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Stoichiometry Chemistry

03/30/22

Stoichiometry problem - chemistry
Copper is extracted from chalconite (Cu2S) through the following reactions: reaction a: 2 Cu2S + 3 O2 --> 2 Cu2O + 2 SO2 reaction b: Cu2O + C --> 2 Cu + CO Suppose that 0.15 mol Cu2S,... more
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Stoichiometry Chemistry

03/24/22

How do I calculate liters of CO2 at stp from grams of octane? (3 step stoichiometry conversion)
How do I calculate liters of CO2 at stp from 1,735,513.195g of octane
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Stoichiometry Science Chemistry

03/20/22

5.05 g of solid Mg(OH)2 is added to 34.2 mL of 0.498 M H2SO4 solution. What will the concentration of Mg2+ be when all of acid has been neutralized? How many grams of Mg(OH)2 will not have dissolved?
Very confused on this please help.
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Stoichiometry

03/15/22

If you mix 10.0 g of carbon with 20.0 g of sulfur, S8, and the reaction 4C+S8→4CS2 occurs, what is the limiting reactant?
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Stoichiometry

03/15/22

For the complete combustion of propane, given by C3H8+5O2 →3CO2+4H2O, what mass of water is produced when 13.1 g of propane is burned in air?
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03/09/22

How many moles of lithium nitrate will be needed to make 2.45 moles of Pb(NOg)4, assuming that you have an adequate amount of Pb(SO4)2 to do the reaction?
I'm completely lost on this one. Help!
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Stoichiometry Chemistry Percent Yield

03/01/22

What is the Percent Yield?
Percent Yield problem with 2 Step Stoichiometry (Non Mass-Mass)Gold will dissolve in the acid mixture known as aqua regia according to the following:Au + HNO3 + 3HCl -> AuCl3 + NO + 2H2OWhat is... more
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