Gases and Moles
The volume occupied by a certain gas depends on the temperature and pressure.
Standard Temperature and Pressure
T=0 degrees Celsius
P=l01.3 kPa
SATP
T=25 degrees celsius
P=100kPa
The volume of any gas at STP is 22.4L for every mole
22.4 L/1mole OR 1mole/22.4L
Some examples for use of STP
Find the volume (l) occupied by 0.060 mol of c02 at STP
0.060mole x 22.4L/1mole = 1.3L
Find the mass of a 200.0 mL sample of NO2 at SATP
mL -> L -> mol -> g
200.0mL x 1L/1000mL x 1mol/22.4L x 46 g/ 1 mole = 9200/22400 =.41g
- Times the top and bottoms then divide
HOMEWORK: Mole ratio lab -> do up to summary of procedure
Questions from 5-10 on the unit 2 homework questions
The summary is okay, but you should include more examples, and specifically examples that are not in the notes I give you. Change the chemical compound, change the number of moles or the mass and then solve it again. That way you get some additional practice.
ReplyDeleteAs well, you need to include multimedia in your posts. Youtube is a good source as well as google images. All in all though, its well done.