help in chemistry practice questions

[chemistry student]

Right, this isn't exactly homework, but just practice questions;-;

 

say there's a balanced equation given, if given the volume of a certain gas how would you find the volume of another gas?

 

i know the topic is moles but idk where to start ;-;

[studiot]

Can you state Avogadros law?

 

http://en.wikipedia.org/wiki/Avogadro's_law

Edited September 21, 2014 by studiot

[chemistry student]

yeah but what's that to do with this? :L

6.02 times 10 to the power of 23..

[Essay]

That's the number, but what about The Law?

[hypervalent_iodine]

If you can assume that they are ideal gases, then the number of litres one mole of gas occupies will be the same for all of the gases and you can therefore treat the volume in a similar fashion to moles (in that you use stoicheometric ratios to figure out how much of something you get given x amount of something else).

 

Edit: this is what was being alluded to with Avogadro's law (note: not the constant of the same name).

[chemistry student]

what??;-;

Never mind, i will talk to my teacher :L

[studiot]

 

Studiot

Can you state Avogadros law?

 

Chemistry Student

yeah but what's that to do with this?

 

Actually you neither could nor did state Avogadro's Law.

 

I only asked if you could to find out if I needed to explain the law first, because Avogadro's Law is the law controlling the answer to your question.

 

So If necessary I would have explained the law first and then how to use it to answer questions about chemical equations, there being little point advising you to use it if you have not yet come across it.

 

 

what??;-;

Never mind, i will talk to my teacher :L

 

 

 

I don't wish you ill but i am sure you will struggle if you approach your teachers in this fashion.

 

On the other hand we can still offer a pleasant and meaningful discussion at Science Forums if you so wish.

Edited September 22, 2014 by studiot

[chemistry student]

I figured it out so never mind but thanks for your help