Calculating Mass of CO Inhaled by a Bartender

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Discussion Overview

The discussion revolves around a homework problem involving the calculation of the mass of carbon monoxide (CO) inhaled by a bartender in a smoky bar environment. The problem includes details about the concentration of CO in the air, the bartender's respiration rate, and the duration of the shift.

Discussion Character

  • Homework-related

Main Points Raised

  • One participant asks for guidance on how to approach the problem, indicating uncertainty about the necessary steps.
  • Another participant suggests that the original poster should learn to convert between grams and moles and encourages them to refer to their textbook and notes.
  • A participant expresses understanding of the conversion process but is unsure how to incorporate the inhalation rate and duration into the calculation.
  • It is proposed that once the mass of CO in one liter is determined, the amount inhaled per minute can be calculated based on the bartender's breathing rate.
  • A participant claims to have calculated a total of 3.02 x 10^10 moles inhaled and questions whether this needs to be converted to grams.
  • Another participant responds to the mass calculation, suggesting that while the numerical part may be correct, the magnitude is likely too large, emphasizing the importance of the negative exponent in the concentration value.
  • A participant acknowledges the mistake regarding the exponent and requests further assistance with other parts of the problem.
  • One participant mentions obtaining a decimal value, but does not elaborate further.

Areas of Agreement / Disagreement

Participants express varying levels of understanding and confusion regarding the calculations, with some providing corrections and others seeking further clarification. There is no consensus on the final mass calculation, and multiple viewpoints on the approach remain present.

Contextual Notes

Participants have not fully resolved the mathematical steps needed to arrive at the final answer, and there are indications of missing assumptions regarding the calculations.

jdhutto
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Homework Statement




Air in a smoky bar contains 4.3 10-6 mol/L of CO. What mass of CO is inhaled by a bartender who respires at a rate of 13 L/min during an 9.0 h shift?

in g



Homework Equations





The Attempt at a Solution




Can someone let me know what steps to take with this problem?
 
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Firstly, you need to learn to convert between grams and moles etc. Do you have a textbook? I'm sure there are examples in there. Do you know how to use the periodic table? You need to show some effort in figuring this out. Take a good look at your notes and see what you can come up with.
 
I understand how to convert from moles to grams, etc I am just not sure how i would take the CO amount then throw in the amount he inhales and how many hours to figure it out.
 
Once you've figured out the mass of CO in one litre, you can figure out how much CO he breathes in one minute because you know how many litres he breathes in one minute.
 
I have a total of 3.02 e10 moles he takes in so would i just need to convert that to grams?
 
8.46 e11 g does that sound reasonable
 
I think the 8.46 part is correct, but the magnitude sounds way too big (it isn't e11). The concentration is given as 4.3 x 10^-6 mol/L, not 4.3 x 10^6 mol/L. The minus sign in the exponent is very important!
 
Thanks yeah i should of picked that up i got that one...can you please help me with one of the others i have posted I am strugglin on those
 
i got a decimal
 

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