Friday
October 24, 2014

Homework Help: chemistry(DrBob222)

Posted by mike on Tuesday, May 15, 2007 at 6:14pm.

did you read my previous post? I just want to mke sure understand what the answer is I think it's 1.11

No, the answer is 2.22 grams.
1.11 is the number of mols H2 which you calculated correctly. Then you converted 1.11 mols to grams by
1.11 mols H2 x molar mass H2 = 1.11 mols x 2 g/mol = 2.22 grams H2 produced by 20 g Al. You did that correctly, also. The ONLY thing you didn't do is to show that Al was the limiting reagent and not H2SO4 (since both a quantity of Al AND a quantity of H2SO4 were given.)

ok thank you very much for your help

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

math - If Stephanie is scheduledto begin practiceat 12:30p.m., what is the ...
Question,drbob222,math - Drbob222, even if you just tell me that there is an ...
Chemistry - Regarding previous post: I don't understand what I'm doing. My book ...
Algebra - Can someone check my algebra answers and help me with the problems I ...
Just a message(please read) - First of all I would like to thank everyone for ...
chemistry - how many grams of CaCl2 need to be dssolved in 100g of water to ...
Social studies? - Please ignore my previous post. I prematurely hit the enter ...
DrBob222 - DrBob222 I am kind of stuck with the balancing stuff, and I already ...
Chemistry - Which aqueous solution below is expected to have the lowest freezing...
Algebra - - ok... we keep getting this one wrong: Solve the following equation ...

Search
Members