Kinetics
Organic Chemistry
Bonding
Stoichiometry
Solubility
100
How can you explain why increasing the temperature increases the rate of a chemical reaction?
The reacting particles have more energy and collide more frequently.
100
What can the number indicate in a compound's name?
The position of a double/triple bond or the carbon atom number with the functional group.
100
What's electronegativity?
Measure of the ability of an atom in a bond to attract e-
100
One mole of any given substance contains how many particles of the substance?
1 mole = 6.02 x 1023 particles, molecules, atoms, ions, etc.
100
What happens when copper(II) bromide, CuBr2 is dissolved in water?
Br- ions are attracted to the hydrogen atoms of water.
200
Which of the following pairs of reactants will react most quickly?
Sodium Chloride & Silver Nitrate, Hydrogen & Chlorine, Water & Propene, or Oxygen & Methane?
Sodium Chloride & Silver Nitrate
200
What are the products and reactants of esterification?
Reactants: Organic acid + alcohol
Products: Water + Ester
200
What are some properties of ionic compounds?
They are crystalline solids, they're hard, they have high melting and boiling points, and they can conduct electricity when dissolved in water.
200
Magnesium hydroxide is 54.87% oxygen by mass. How many grams of oxygen would you expect to see in 225 g of the compound?
123.5 g of O
**Percents are out of 100, cross multiply!
200
Determine if the Substance Calcium Hydroxide is Soluble or Insoluble
It's soluble
**Use Table F!
300
What is delta H or the enthalpy of reaction?
Difference between the Potential energy of the products and the potential energy of the reactants
300
Use Table R to identify the class the substance below belongs to based on its functional group.
Aldehyde
300
What are some properties of Covalent Compounds?
They have low melting and boiling points (due to weak IMFs), form molecules, and do not conduct electricity. **They can be solids, liquids, or gases
300
How many grams of nitrogen are needed to produce 30.0 grams of ammonia? N2(g) + 3H2(g) → 2NH3(g)
24.7 g of N2
300
What are the factors that affect solubility and what are their relationships?
Temperature: As temp increases, solubility increases(solids); As temp increases, solubility decreases(Gases)
Pressure: Pressure has no effect(solids); As pressure increases, solubility increases(Gases)
Nature of Solute: "Like dissolves like"; a solute dissolves best in a solvent of the same polarity
400
Rates are -------- and concentrations are ---------- in equilibrium reactions.
Rates are equal and concentrations are constant.
400
Name this compound:
2, 4 - Dimethyl Hexane
400
What is metallic bonding, their properties, and why do metals have these properties?
Occurs between metal atoms of the same element. Their electrons are mobile and flowing throughout, resulting in a "sea of e-". They have high boiling and melting points, and are always capable of conducting electricity. **Does NOT result in the formation of a compound.
400
How many grams of O can you expect to find in 85.5 g of H2O2?
80.4 g O
**Find the molar mass, determine number of moles of the compound, find how many moles of O there are, convert that to g!
400
How much NH4Cl is needed to form a saturated solution in 200 g of water at 90 degrees Celsius?
144 g of NH4Cl forms a saturated solution
**Use Table G and find how many g forms a saturated solution in 100g of H2O first!
500
When the concentration of HCl(g) is increased, concentration of O2(g)...
2Cl2(g) + 2 H2O(g) + 31.2 kJ ↔ HCl(g) + O2(g)
increases and the temperature will increase; increases and the temperature will decrease; decreases and the temperature will increase; decreases and the temperature will decrease
Decreases and the temperature will increase
500
Isomers are organic compounds with the same ---------------------------, but different -------------- and --------------------.
Isomers are organic compounds with the same molecular formula, but different structural formulas and properties.
500
What's the different between bond polarity and molecular polarity?
Molecular polarity refers to the symmetry of a molecule and how electrons are distributed over the entire molecule. Bond polarity refers to electronegativity differences between individual atoms or ions.
500
Given the reaction below:
2Al + 3H2SO4 → 3H2 + Al2(SO4)3
How many molecules of hydrogen will be produced from reacting 1.204 x 1024 atoms of aluminum?
1.80 x 1024 H2 particles (molecules)
**Use the molar coefficients!
500
A solution of NH4Cl contains 60 g of solute in 100 g of water at 90oC. How many more grams of NH4Cl must be added to make it a saturated solution at 90oC?
12 g NH4Cl
**Saturated Amount - What we have = How much more we can add