The Mole & Stoichiometry
States of Matter
Gas Laws
Solutions
Vocabulary
100
What is Avogadro's number?
Answer: 6.02 x10^23
100
What is another name for a molecule?
Answer: Atom
100
What does the "n" in this equation: PV=nRT?
Answer: Moles
100
What is a mixture?
Answer: Two or more pure substances that are physically mixed together.
100
What is a molecule?
Answer: A molecule is an electrically neutral group of two or more atoms held together by covalent chemical bonds
200
What does STP stand for?
Answer: Standard Temperature and Pressure
200
What is absolute zero?
Answer: the temperature at which the motion of particles theoretically stops.
200
What is the chemical equation for gas laws?
Answer: PV=nRT
200
What is a colloid?
Answer: An intermediate between a suspension and a solution and is a stable heterogeneous mixture.
200
What is a Polar Bond?
Answer: is a bond in which the bonding electron pair is shared unequally.
300
How many liters can fit in a mole?
Answer: 22.4 L
300
What is kinetic theory?
Answer: The tiny particles that make up all forms of matter are in constant motion.
300
Give the equation for Boyle's Law:
Answer: P1 x V1= P2 x V2
300
What is the Tyndall effect?
Answer: Colloids, though, will scatter light that is passed through them.
300
What does soluble mean?
Answer: "Capable of being dissolved"
400
Convert 5 g of HCl to moles of HCl.
Answer: 0.139 Moles HCl
400
Convert 1140 mmHg to atms.
Answer: 1.5 atm
400
Give the equation for Charles Law:
Answer: V1/T1 = V2/T2
400
Name the three ways to change solubility:
Answer: Stir or shake it, Break it up into smaller pieces, Heat it up.
400
What is the difference between Molarity and Molality?
Answer: Molarity (M) equals moles of solute per liters of solvent (mol/L). While Molality (m) equals moles of solute per kilogram of solvent (mol/kg).
500
If I wanted to react 4 moles of O2, how many moles CO2 would be produced? C5H12 + 8 O2 ---> 5 CO2 + 6 H2O
Answer: 2.5 Moles of CO2
500
What are the 6 phases of matter?
Answer: Freezing, Melting, Sublimation, Deposition, Condensation, Evaporation.
500
P1 = 726 mmHg, V1 = 946 mL, P2 = ?, V2 = 154 mL Solve for P2: Show Your Work!
Answer: 4460 mmHg
500
When Dr. Pepper is bottled, a premixed syrup is mixed with carbonated water. What is the volume percent of the syrup if 20 mL of syrup is dissolved in 280 mL carbonated water?
Answer: % V/V= (volume solute/volume of solution) x 100 = (20 mL solute)/(20 mL + 280 mL) x 100 6.67%
500
What is the Quantum Mechanical Model?
Answer: It is the most up-to-date model of the atom and it's electrons that man knows of.
M
e
n
u