11.4 Continued Notes

Stoich Gas Bonus

2CO + O₂ −-> 2CO₂
How many liters of Carbon dioxide are produced from 10.0 L of Oxygen, at STP?

1. set up Extended T-bar
2. Remember mol:mol ratio

​(don't forget your units and formula)

​10.0 L O₂

22.4 L O₂

1 mol O₂

1 mol O₂

2 mol CO₂

1 mol CO₂

22.4 L CO₂

Ideal Gas Law

An ideal gas is defined as one in which all collisions between atoms or molecules are perfectly elastic and in which there are no intermolecular attractive forces.

The ideal gas law can be viewed as arising from the kinetic (movement) and pressure of gas molecules colliding with the walls of a container.

A Picky Law

The Ideal Gas Law is considered picky because there are specific units depending on pressure unit.

If a variable is not in the correct unit, you must convert it!

Ideal Gas Law

PV = nRT

where...

P = 0.949 atm

V = ?

n = 0.867 moles

R = 0.0821 L*atm/mol*K  

T = 305.2 K