Friday
August 22, 2014

Homework Help: chem question i need help

Posted by Jenn on Tuesday, February 27, 2007 at 1:21pm.

I need help on this question. Could someone give me tips on how to solve it?

thanks



An emergency breathing apparatus often placed in mines works via the following chemical reaction: 4KO2(s) + 2CO2(g) to make 2K2CO3(s) + O2(g)

If the oxygen supply becomes limited or if the air becomes poisoned, a worker can use the apparatus to breath while exiting the mine. Notice that the reaction produces O2, with can be breathed, and absorbs CO2, a product of respiration. What minimum amount of KO2 is required for the apparatus to produce enough oxygen to allow the user 15 minutes to exit in an emergency? Assume that an adult consumes approximately 4.4g of oxygen in 15 minutes of normal breathing.


4.4g of O2? figure the moles of O2, then

Look at the balanced equation: it takes four times that amount of moles of O2 of KO2. What is the mass of that?

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

chemistry - A particular kind of emergency breathing apparatus-often placed in ...
chemistry - A particular kind of emergency breathing apparatus-often placed in ...
to bobpursley - An emergency breathing apparatus often placed in mines works via...
Chem (Help!) - I need help in using gas laws to solve problems. I need help with...
math - 100 people set up a phone call system so that the initial contact person ...
Science. NEED HELP PLEASE - Can someone check if these are right: Tell the ...
Algebra - Wow, this one is hard to explain... First, I'll give you the info you ...
Algebra again - I don't understand how to do this problems: Solve for the ...
science - tell me about science apparatus They are used in science. You need a ...
Algebra! Help needed! - I'll try posting this again since no one responded ...

Search
Members