schase10353
New member
What volume of hydrogen at STP is produced by dissolving 13.49 g of aluminum in excess sulfuric acid?
Here's what I have so far,
2(Al) + 3(H2SO4) --> Al2 (SO4)3 + 3(H2)
And
A gas chamber has a leak where a known quantity of Ar leaks out in 60 hours. How long would it take to leak out the same number of molecules of SO3?
How do you even approach these problems?
I'm not so much wanting the answer as I am the process. I'm just not understanding this in a way that I should be. Even though this is an advanced chemistry class, please answer as if you're explaining it to a 1st year chem student. That would help me a bunch because it's been so long and I think my consoler assumed I knew a lot about it.
How would I;
Look at a balanced equation, say
X2 + 3(Y2) --> 2(XY3)
and tell what volume of XY3 is produced a STP if all they tell me is to use # g of each?
Here's what I have so far,
2(Al) + 3(H2SO4) --> Al2 (SO4)3 + 3(H2)
And
A gas chamber has a leak where a known quantity of Ar leaks out in 60 hours. How long would it take to leak out the same number of molecules of SO3?
How do you even approach these problems?
I'm not so much wanting the answer as I am the process. I'm just not understanding this in a way that I should be. Even though this is an advanced chemistry class, please answer as if you're explaining it to a 1st year chem student. That would help me a bunch because it's been so long and I think my consoler assumed I knew a lot about it.
How would I;
Look at a balanced equation, say
X2 + 3(Y2) --> 2(XY3)
and tell what volume of XY3 is produced a STP if all they tell me is to use # g of each?