[Shahab Mirza]

If we take 2.2 grams of CO2, 6.02 X 1021 atomes of nitrogen and 0.03 gram atoms of sulphar , then the molar ratio of C, N, and O is .

answer is 5:1 :3

how to solve it help please , thanks

[mjc123]

Do you understand the concept of moles ("gram atom" is an old fashioned term for "mole") and its relation to mass, molecular weight and number of atoms?
How many grams of CO₂ in 1 mole? So how many moles in 2.2 g?
How many moles is 6.02 x 10²¹ atoms? (Have you come across Avogadro's number?)

[Shahab Mirza]

Do you understand the concept of moles ("gram atom" is an old fashioned term for "mole") and its relation to mass, molecular weight and number of atoms?
How many grams of CO₂ in 1 mole? So how many moles in 2.2 g?
How many moles is 6.02 x 10²¹ atoms? (Have you come across Avogadro's number?)

I know all these basics, but my question is that how to solve and write answer in this ratio ?

[Arkcon]

Do you understand the concept of moles ("gram atom" is an old fashioned term for "mole") and its relation to mass, molecular weight and number of atoms?
How many grams of CO₂ in 1 mole? So how many moles in 2.2 g?
How many moles is 6.02 x 10²¹ atoms? (Have you come across Avogadro's number?)

I know all these basics, but my question is that how to solve and write answer in this ratio ?

Please show us that you know these basics by doing the work in your posts.  Then, we'll see what you're unsure of, and where you're making mistakes.  And we'll help you from there.  Please trouble yourself to read the forum rules -- we don't dump answers on this forum.  We want to see your work.  http://www.chemicalforums.com/index.php?topic=65859.0

[Shahab Mirza]

Sir , I have tried alot to solve this question , but it is out of my reach, I only managed to find molar ration of C , that is . 2.2 X 12/44 = 0.6 = 6: , this is my work,
but i dont know how to solve the rest of question ?

[Shahab Mirza]

Do you understand the concept of moles ("gram atom" is an old fashioned term for "mole") and its relation to mass, molecular weight and number of atoms?
How many grams of CO₂ in 1 mole? So how many moles in 2.2 g?
How many moles is 6.02 x 10²¹ atoms? (Have you come across Avogadro's number?)

I know all these basics, but my question is that how to solve and write answer in this ratio ?

Please show us that you know these basics by doing the work in your posts.  Then, we'll see what you're unsure of, and where you're making mistakes.  And we'll help you from there.  Please trouble yourself to read the forum rules -- we don't dump answers on this forum.  We want to see your work.  http://www.chemicalforums.com/index.php?topic=65859.0

Sir, my mistake, I converted into grams which is not right, see my new work .
 2.2/44 = 0.05 mols of C but i cant find out
mols N = 0.01
mols O = 0.03

help me solve this 2 please? i am stuck since 3 days

[Arkcon]

Well, there's a typographical error in the original post and the latest one -- you mention sulfur at least one, then mention oxygen.  Anyway, mjc123: specifically stated, in the second post that "gram atoms" is the same as "moles", so this last part is done for you.  Likewise, the amount of nitrogen similarly uses a definition.

[Shahab Mirza]

Sir, I made mistake again , i dont know how to do this, if 2.2/44 = 0.05 mols of C , than we have to find nitrogen and oxygen mols but form what , what sulfur is doing here?