Stoichiometry and other questions

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    Stoichiometry
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SUMMARY

The discussion focuses on stoichiometry calculations related to the combustion of hydrocarbons and charcoal briquettes. The first question involves determining the theoretical yield of CO2 from a 75% yield scenario, with options provided for the answer. The second question addresses the reaction of charcoal with oxygen, specifically calculating the moles of O2 required and the mass of carbon monoxide produced under different conditions. The user seeks clarity on these stoichiometric principles.

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  • Understanding of stoichiometry and yield calculations
  • Knowledge of combustion reactions involving hydrocarbons
  • Familiarity with chemical equations and mole conversions
  • Basic principles of gas laws and properties of gases
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  • Learn about combustion reactions and their products
  • Explore the concept of limiting reactants in chemical reactions
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Chemistry students, educators, and anyone interested in understanding stoichiometric calculations and the safety implications of combustion reactions.

marinepyre
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First of all
I hope this is the right section of the forums
My other was deleted because i posted at the wrong forum.
 
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So here is my first question
In the combustion of a certain hydrocarbon, 16.0 grams of CO2 is produced. This represents a 75% yield. What is the theoretical yield?
A) 12g
B)21.3g
C)32.0g
D)44.0g
I know the answer but i don't know how to get it. Thanks in advance.

My second is this
Barbecues burning charcoal briquettes are unsafe for indoor use because of the colourless, odourless, poisonous gas produced.
(a) Find the n(O2) gas that reacts with 3.5 g of
charcoal briquettes (assume pure C) to produce
carbon monoxide.
(b) If there is a plentiful supply of air, a safe
colourless, odourless gas is produced. Find the mass of this gas produced if the same amount of charcoal is burnt. You will need to write another equation.

Oh by the way if i am in the wrong forum again. Notify me and let me copy what i typed in that would save a lot of time. Before you delete it.
 
marinepyre said:
Oh by the way if i am in the wrong forum again. Notify me and let me copy what i typed in that would save a lot of time. Before you delete it.

Please read your private messages. You were notified why your thread was deleted.

Topic locked.
 

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