IMFs & Chemical Reactions
The weakest intermolecular force, found in nonpolar molecules like oxygen (O₂)
What are London dispersion forces?
One mole of any substance contains this many particles.
What is 6.022 × 10²³?
Find the pressure of 1.0 mol of gas in a 22.4 L container at 273 K
What is 1.0 atm?
A solution is made when one substance is dissolved in another. The dissolving substance is called this.
What is the solvent?
A reversible reaction at equilibrium has this characteristic for the rate of the forward and reverse reaction.
What is "equal"?
This type of intermolecular force is found between water molecules due to their polarity and hydrogen atoms.
What is hydrogen bonding?
The molar mass of H₂O in grams per mole.
What is 18.015 g/mol?
A 2.0 L gas at 1.0 atm is compressed to 1.0 L. What is the new pressure, assuming temperature is constant?
What is 2.0 atm?
An acid donates these in solution.
What are protons or H⁺ ions?
An exothermic reaction releases this.
What is heat (or energy)?
Identify the type of reaction: 2H₂ + O₂ → 2H₂O
What is a synthesis reaction?
How many moles are in 36.0 grams of water?
What is 2.00 moles?
A gas occupies 3.0 L at 300 K. What is the new volume at 600 K (constant pressure)?
What is 6.0 L?
A solution has [H⁺] = 1 × 10⁻³ M. What is its pH?
What is pH = 3.0?
What are the three changes that can shift an equilibrium, according to Le Châtelier’s Principle?
What are change in temperature, change in pressure, change in concentration?
Balance this chemical equation: C₃H₈ + O₂ → CO₂ + H₂O
What is C₃H₈ + 5O₂ → 3CO₂ + 4H₂O?
If 2 moles of H₂ react with O₂ to form water, how many moles of H₂O are produced?
What is 2 moles?
2.0 mol He, 3.0 mol Ne, and 5.0 mol Ar are in a container with a pressure of 10.0 atm. What is the partial pressure of Ne?
What is 3.0 atm?
What volume of 1.0 M HCl is needed to completely neutralize 0.50 mol of NaOH?
HCl + NaOH --> H2O + NaCl
What is 0.50 L?
For the reaction A + B ⇌ C + D, what happens if you add more A? (Assume they are gases)
What is the reaction shifts right (toward products)?
Why will zinc replace hydrogen in this chemical reaction: Zn + 2HCl → ZnCl₂ + H2?
What is because it is more active/ higher on the activity series than H2?
How many grams of CO₂ are produced when 44.0 g of propane (C₃H₈) burns completely?
C3H8 + 5O2 --> 3CO2 + 4H2O
What is 132 grams?
Which gas will diffuse across a room faster, Kr or CO2?
CO2 (MM = 40.021 g/mol vs. 83.798 g/mol)
How many grams of NaCl (molar mass = 58.544 g/mol) are needed to make 0.5 L of a 2.0 M solution?
What is 59 grams?
How much heat is released when 10.0 g of a metal with a specific heat of 0.20 g/JoC cools from 50.0oC to 20.0oC?
q = - 60. J (negative because heat is RELEASED)