Atmosphere & Gas Laws
List the gas law variables and their units.
Pressure (atm, kPa)
Volume (L)
Temperature (K)
Amount (mol)
Provide 2 key characteristics of acids.
Acids turn litmus paper red, have high concentration of H+ ions, pH lower than 7, a sour taste, reacts with metals
8 H2 + S8 --> 8 H2S
What is the mole ratio of S8 and H2S?1:8
Endothermic means heat is _______ and the surroundings feel _________.
Absorbed, cold
What lab did we do where we could eat the chemicals we worked with?
Stoichiometry S'mores
In which layer of the atmosphere does all weather occur? Why?
Troposphere - it is where all of the water vapor is concentrated.
AB + C --> ABC
What type of reaction is this?
Synthesis
How many steps is a problem going from particles of one substance to grams of another substance?
3 steps
particles A --> moles A --> moles B --> grams B
Exothermic means heat is _______ and the surroundings feel _____.
released, warm
What extracurricular activity was Ms. Leonard involved with when she was in college?
The Circus
What words are used to describe pressure and temperature on a particle level?
Pressure - amount of collisions
Temperature - kinetic energy (motion)
What are the products of an acid/base reaction?
water and salt
How do you determine the limiting reactant in a problem?
Solve for the mass of the product twice from each reactant. The reactant that produces less product is the limiting reactant.
Draw an energy diagram for an exothermic reaction. Label the reactants, products, activation energy (Ea), and enthalpy (delta H)
See whiteboard.
What is the name of Ms. Thompson's bearded dragon?
Rodrick
If I blow up a balloon with 5L of CO2, at a pressure of 0.25 atm, and the temperature in the room is 33 degrees C, how many grams of CO2 are inside?
2.19 g CO2
Balance this chemical reaction.
__ MgCl2 + __ Li2S --> __ LiCl + __ MgS
1, 1, 2, 1
Solve #29 in your review guide.
What is the limiting reactant and theoretical yield?
Limiting reactant: AgNO3
Theoretical Yield: 52.66 g Ag
Solve #33 on your review guide. What is the specific heat capacity of the metal?
c = 0.9 J/gC
Name all of the regular chemistry teachers!
Ms. Leonard
Ms. Thompson
Ms. Caruso
Ms. Myroth
Mr. Baker