Safety Unit and Equipment
What is the first thing you do at the beginning of a lab?
Collect and don safety goggles.
What are the three states of matter and how do their molecules move?
Solid; vibrational movement, Liquid; slipping and sliding around, and Gas; complete freedom of motion
What is the Joules/gram degrees Celsius for water?
4.184J/g degrees Celsius.
How many molecules are in 1 mole?
6.02x10^23 molecules
Who is the father of modern day chemistry?
Antoine Lavoisier
What is NOT done with unused chemicals removed from their original containers after a lab?
They are returned to their stock container.
What is the molecular arrangement of a solid known as?
Lattice Structure.
Who came up with the Caloric Theory?
Antoine Lavoisier
What is the Ideal Gas Law?
PV=nRT
What’s are the 5 types of reactions?
Synthesis, Combustion, Decomposition, Single Replacement, and Double Replacement.
What is the difference between a Büchner flask and an Erlenmeyer flask?
The Büchner flask has a hose barb protruding from its neck.
What part of a candle allows it to combust?
The gaseous wax.
What determines degree of hotness of a molecule?
It’s speed.
How many liters of gas is 1 mole at STP?
22.4L
How many elements are there in the periodic table?
118 elements
Where do you usually dispose of solid waste?
A waste beaker.
In a heating or cooling curve, what does a slope of 0 mean?
Change of state of matter.
Which process includes the direct transmission of heat through a substance?
Conduction.
What is the Ideal Gas Constant for both atm and mmHg?
0.0821 and 62.4
Describe the drag method and how it was incorporated.
The drag method is dragging the lip of a container across the lip of another container, to guarantee that no liquid is dropped. We used this in the Mass relationship lab.
How many times did hazmat teams visit Flag High in a single year?
Twice.
What temperature in Celsius is absolute zero achieved?
-273 degrees Celsius.
What are the three types of energy in LOL charts, and what do they pertain to?
Kinetic Energy(temperature change), Interaction Energy(phase change), and Chemical Energy(chemical reaction).
Unit wise, what changes in gas laws?
You use Kelvin in place of Celsius, and you always use liters.
What does it mean if you react 25 grams of one chemical and 26 grams of another, and you end up with a product with a mass of 52 grams?
There was error in the experiment, causing incorrect data.