Homework Help Forum: chemistry

Posted by lila on Tuesday, November 3, 2009 at 2:49pm.

which of the following gasses will have the largest volume ( all volumes are measured at the same temperature and pressure) A) 16g of CH4 B) 34g of NH3 C) 44g of co2 D) 64g of SO2 i think the answer is C am i right

• chemistry - DrBob222, Tuesday, November 3, 2009 at 2:50pm

  You may or may not be right. How did you get your answer? That is the important part.

  
  

• chemistry - lila, Tuesday, November 3, 2009 at 3:14pm

  i found the gram formula mass for each gas and took it away from the gram given in the example

  
  

• chemistry - DrBob222, Tuesday, November 3, 2009 at 3:20pm

  Close but no cigar. You find the gram formula mass, which is 16 for CH4 17 for NH3 44 for CO2 64 for SO2. So you have 1 mole CH4 2 moles NH3 1 mole CO2 1 mole for SO2. Now which will occupy the most volume at the same P and T. You may want to use PV = nRT You know P is the same, R is the same, T is the same. So the highest V is for the xxxxx n.

  
  

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