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Topic: Numerical related to mole concept and stoichiometry  (Read 2367 times)

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Offline vijaypandey93

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Numerical related to mole concept and stoichiometry
« on: February 01, 2015, 10:04:03 AM »
The Enzyme carbonic anhydrase catalyses the hydration of CO2.The reaction:CO2+H2O=H2CO3,is involved in the transfer of CO2 from the tissues to the lungs via blood stream. One enzyme molecule hydrates 10^6 molecules of CO2 per second. How many Kgs of CO2 are hydrated in hour in one litre by 1*10^(-6) M enzyme?
Answer: 0.1584 kg.

My attempt:-
CO2 + H2O ---> H2CO3

 Molecular mass of CO2 = 44 g

 No. of moles of enzyme =1*10^(-6) moles
 No. of molecules of enzymes present that will hydrate CO2 in one hour = 1*10^(-6)*6.023*10^23 molecules
 One molecule of enzyme hydrates No. of molecules of CO2   in one hour  = 60*60*10^6 Molecules
 So, 1*10^(-6)*6.023*10^23 molecules of enzyme will hydrate = 1*10^(-6)*6.023*10^23 * 60*60*10^6 molecules.

  6.023 * 10^23 molecules of CO2 = 44 g

 Mass of 3600*6.023*10^23 molecules of CO2 =[44/(6.023*10^23)]*3600*6.023*10^23g =158400 grams of CO2

 Thus 158.400 kg of CO2 will be produced.

But my answer comes out to be different from the one given in the standard text book and that's a very standard text book. I've not got any wrong answer till now.
Please guide!
Thanks!! :(  :(  :(
   

Offline Corribus

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Re: Numerical related to mole concept and stoichiometry
« Reply #1 on: February 02, 2015, 01:04:00 AM »
I'm not getting a different answer from yours. Textbooks do make errors.
It's also possible I'm making the same mistake you did. :)
What men are poets who can speak of Jupiter if he were like a man, but if he is an immense spinning sphere of methane and ammonia must be silent?  - Richard P. Feynman

Offline billnotgatez

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Re: Numerical related to mole concept and stoichiometry
« Reply #2 on: February 02, 2015, 06:18:22 AM »
...
But my answer comes out to be different from the one given in the standard text book and that's a very standard text book.
...

What is the text and what is the answer given in it?

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