Module 12
What are all the properties used in all the laws
Temperature, Volume, Pressure
How do you determine when a graph is endothermic or exothermic?
If the products are higher than the reactants = endothermic
If the products are lower than the reactants = exothermic
What does collision theory state?
For reaction to occur, reactant particles must collide with each other.
What is equilibrium?
What does the Bronsted-Lowry definition of an acid and a base?
Acid = Donor
Base = Receiver
What do properties does each law uses?
Boyle's Law:Pressure and Volume
Charles's Law: Volume and Temperature
Gay-Lussac's Law Pressure and Temperature
Combined Gas Law: Pressure, Volume, and Temperature.
What are the 2 types of energy
Potential and Kinetic
True or false: When there is a decrease in the surface area, the collisions rate decrease too
True or false, reactants and products are equal when they reach equilibrium
False
Which one turns litmus paper blue? An acid, or a base?
Base
What is 3 moles in litters? (Hint: 1 mole = 22.4L)
67.2 L
What do flat lines represent in a heating curve of water graph?
Phase changes
What factors are needed for a collision?
Correct orientation and sufficient energy
Which way does the reaction shift when 4HCl is added to 4HCl(g) + O2(g) โ 2Cl2(g) + 2H2O(g)
It shifts to the right.
what does the โ represent in a chemical reaction?
the reaction is weak acid
A container has a gas pressure of 2.50 ATM and a temperature of 50โ๐ถ what will the new temperature be if the temperature increases to 70โ๐ถ? (convert Celsius to Kelvin, K =273).
2.65 atm
what does each variable represent in Q=mcโT?
Q โ Heat Energy
m โ Mass
c โ Specific Heat Capacity
ฮT โ Change in Temperature
True or false, catalysts affect the rate determining step
True
Which way does the reaction shift when pressure increases in 3NO(g) + O2(g) โ 2NO2(g)?
It shifts to the left.
How do you find [OH-] when [H+] is 3.7 x 10^-8?
[OH-] = 2.7 x 10^-7
A sample gas has an initial volume of 3.50 L, an initial pressure of 1.20 atm, and an initial temperature of 500k. If the pressure is increased to 3.00 atm and the temperature decreases to 300k, what is the new volume?
0.84L
How much heat energyโfus (In Joules) is required to melt 100 g of ice at its melting point? (hint: Joules = 4184)
33,400 Joules
what is the difference between activation energy and activated complex
Activation energy is the energy needed to start a reaction and activated complex when molecules reach the amount of energy needed and a chemical reaction starts
Which way does the reaction shift when temperature increases in N2(g) + O2(g) โ 2NO(g)?
It shifts to the right.
If it takes 88 mL of 1M NaOH to neutralize 125 mL of an HCl solution, what is the concentration of the HCl?
(Hint: M1 x V1 = M2 x V2)
M2 = 0.704 M