[nervouspupil123]

If you were told that 2 reactants, e.g. Hydrogen and oxygen, had a molar ratio of 2:1, and hydrogen had a volume of 12dm3, how would you determine the volume of oxygen?

[Theturnbull9]

Simple.. You would get a spaceship, blast it into space, watch it orbit the earth a bit, collect some cheese particals from the moon before coming back down to earth. The Volume of oxygen would be 1.33* recurring. etc etc. simples.

[ekudamram]

Well, you have 2 parts Hydrogen for 1 part Oxygen

So you have 12dm3 Hydrogen for xdm3 Oxygen

[aeyurttaser13]

(Original post by nervouspupil123)
If you were told that 2 reactants, e.g. Hydrogen and oxygen, had a molar ratio of 2:1, and hydrogen had a volume of 12dm3, how would you determine the volume of oxygen?

first u have to calculate the moles of hydrogen present from the given volume, them divide it by 2 cz the molar ratio is 2:1, so now u have the amount of oxygen in moles. then determine the volume of oxygen present from the moles of oxygen

[ekudamram]

(Original post by aeyurttaser13)
first u have to calculate the moles of hydrogen present from the given volume, them divide it by 2 cz the molar ratio is 2:1, so now u have the amount of oxygen in moles. then determine the volume of oxygen present from the moles of oxygen

Why convert volume to moles to convert back to volume?

[aeyurttaser13]

(Original post by ekudamram)
Why convert volume to moles to convert back to volume?

i meant for more complex calculations, right now there is no need. i wrote it as a guideline to further questions so the logic behind it is clear

[nervouspupil123]

so what is the answer? and what would it be for 10cm3 hydrogen and unknown vol. oxygen, with the same (2:1) ratio?

[nervouspupil123]

(Original post by ekudamram)
Well, you have 2 parts Hydrogen for 1 part Oxygen

So you have 12dm3 Hydrogen for xdm3 Oxygen

what is x :L

[nervouspupil123]

anyone?

[ekudamram]

12dm3 of a given volume is hydrogen, and so what, multiplied by 2, gives 12?