421 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?
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
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__________________________
Stoichiometry Chemistry

05/17/22

How many moles of oxygen of are needed to produced 5.3 moles of aluminum oxide ?

4AL+3O2=2AL2O2 _______________
Stoichiometry Chemistry

05/17/22

how many grams of Aluminum Oxide is needed to completely react with 124g of Aluminum?

4AL+3O2 =2AL2O3
Stoichiometry

05/12/22

If 26.4 moles of CH4 are reacted, how many moles of CO2 will be produced?

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
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
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
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
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
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.
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
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?
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
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
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
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

03/01/22

CONCENTRATION OF SOLUTIONS CHEMISTRY (MOLARITY)

What is the molarity of a solution that contains 25 g of KOH in 250 mL of solution?  What is the mole fraction of sulfuric acid (H2SO4) in 8% aqueous H2SO4 solution?

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