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Topic: I just want to check my answer  (Read 2951 times)

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Offline DesertRose

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I just want to check my answer
« on: April 30, 2010, 10:02:39 PM »
Hi, i was given the following question; what volume does 22g of CO2 occupy occupy at s.t.p?
i attempted the question and did this;

22.4 = 38g
    x = 22g
   ( i crossed multiply)
 38x = 492.8
   x  = 492.8/38
      = 13 dm^3

could anyone tell me if i did this correct? if i didn't could you correct me as to where i'm going wrong??
any assistance will be greatly appreciated!!
thank you!!
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Offline Schrödinger

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Re: I just want to check my answer
« Reply #1 on: May 01, 2010, 01:02:52 AM »
What is the molecular mass of CO2?
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Offline DesertRose

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Re: I just want to check my answer
« Reply #2 on: May 01, 2010, 10:00:02 AM »
RMM of CO2 is 38g.
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Offline Borek

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Re: I just want to check my answer
« Reply #3 on: May 01, 2010, 10:49:47 AM »
No, it is not. Calculate the correct value.
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Offline DesertRose

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Re: I just want to check my answer
« Reply #4 on: May 01, 2010, 11:52:15 AM »
sorry 44g
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