Calculating Volume in dm³: Solving the Equation 2KClO3 -----> 2KCl + 3O2

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Discussion Overview

The discussion revolves around the calculation of the volume of KCl produced in the reaction 2KClO3 -----> 2KCl + 3O2. Participants are trying to reconcile differing interpretations of the problem statement and the associated calculations.

Discussion Character

  • Homework-related
  • Debate/contested
  • Mathematical reasoning

Main Points Raised

  • One participant suggests that the volume of KCl obtained should be 44.8 dm³ based on the molar volume of gases and the stoichiometry of the reaction.
  • Another participant questions the clarity of the problem statement, asking if it is incorrect and whether it should be reported to the teacher.
  • Some participants propose that the numbers in the balanced equation might refer to moles, leading to confusion about the volume calculation.
  • There is a suggestion that the question may be poorly worded and lacks necessary context for a clear answer.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the correct interpretation of the problem or the calculation of the volume, indicating multiple competing views remain.

Contextual Notes

The discussion highlights potential limitations in the problem statement, including missing assumptions and the ambiguity regarding whether the question pertains to moles of solid KCl or gaseous products.

Aafia
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Homework Statement



What volume in dm³ of KCl is obtained in the following equation 2KClO3-----> 2KCl + 3O2?

Homework Equations


None

The Attempt at a Solution


I suppose there is not enough data and according to equation it is 44.8dm³. But my book says 2 dm³, I don't understand how?
 
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What is the exact and complete problem statement?
 
Chestermiller said:
What is the exact and complete problem statement?
So is it incorrect statement? Because it is asked in my test. Do you think there is another way of thinking about the question? If this is wrong should I inform it to my teacher so they can cancel the question.
 
Aafia said:
So is it incorrect statement? Because it is asked in my test. Do you think there is another way of thinking about the question? If this is wrong should I inform it to my teacher so they can cancel the question.
I don't know. Maybe those are supposed to be both the numbers of moles in the balanced chemical equation and the actual numbers of moles involved. How did you get 44.8?
 
Chestermiller said:
I don't know. Maybe those are supposed to be both the numbers of moles in the balanced chemical equation and the actual numbers of moles involved. How did you get 44.8?
one mole of any gas occupy volume of 22.4dm³ (molar volume) and from equation there are two moles of potassium chloride so volume will be 2×22.4dm³= 44.8dm³. I think they are asking about 2 moles of solid KCl. Is that right?
 
Aafia said:
one mole of any gas occupy volume of 22.4dm³ (molar volume) and from equation there are two moles of potassium chloride so volume will be 2×22.4dm³= 44.8dm³. I think they are asking about 2 moles of solid KCl. Is that right?
That would be my guess.
 
Unless there is a context that makes it obvious, question is poorly worded and incomplete.
 

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