CHEM 103 Experiment 5 Gas laws : To learn about different gas laws (Portage learning)/CHEM 103 Experiment 5 Gas laws : To learn about different gas laws (Portage learning)/CHEM 103 Experiment 5 Gas laws : To learn about different gas laws (Portage learning)/CHEM 103 Experiment 5 Gas laws : To learn...
chem 103 experiment 5 gas laws to learn about different gas laws portage learningchem 103 experiment 5 gas laws to learn about different gas laws portage learningchem 103 experiment 5 gas la
/Experiment 5- Gas Laws
Title: Gas Laws
Purpose: To learn about different gas laws
Procedure:
Boyle’s Law: weights on plunger
-Plunger with just atmospheric pressure is 33mL; with weight of 2.5 lbs, the volume is 27 mL- gas is getting compressed;
-With 2 2.5 weights (total of 5lbs)
-With 7.5 lbs; its 18mL
-with 10lbs of weight; its 16.5 mL
-Total of 15 lbs; its 13.0mL
-The higher the pressure, the smaller the volume
Charles’ Law: syringe and hair dryer
-Flask has been cooling and syringe and thermomter
-Plunger should raise with temp increase
-Plunger is slowly rising over time
Ideal Gas Law: Calculate Molar Mass for Acetone
-Commonly used in finger nail polish remover
-Fill flask with acetone and there is hole in top that will let out excess oxygen and some acetone
-Weight of flask and foil on balance: 112.1373 mass
-1.8 mL of acetone
-Clamp on flask and set on water bath
-Acetone has boiling point of 57 degrees celsius
-Flame is turned on and will let it heat until 66 degrees to ensure the acetone is vaporized and it has filled the flask
-13 mins later
-Slight bit of flask not under water (could cause error)
-66.4 degrees celsius when flame is turned off and flask is out of hot water bath
-Flask is then placed in cool water to help recondense and vapor acetone
-Dries of water from flask so it doesn’t add mass; we just want weight of acetone
-Mass after experiment is 112.7900; mass of acetone in flask
Ideal Gas Law: Measuring Moles of Mass produced from a reaction
-CaCO3(s) + 2HCl (aq) → CaCl2 (ag) + H20 (l) + CO2(g)
-PV= nRT
-Using gas apparatus that helps us measure volume of gas
-Water with green food color
-3 Parts: 1) reaction chamber- syringe; 2) Gas Buret- allows us to measure gas produced; 3) leveling bulb- if its level than its under atmospheric pressure
-Need to check and make sure system is airtight and no CO2 or O2 is leaking out; can do this by picking up the bulb and making sure gas buret stays level at the bulb changes; if /its not air tight the level of the gas buret will move up and down with leveling bulb
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Oldspice. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $14.99. You're not tied to anything after your purchase.
