What is the criteria for Hydrogen bonding to be present?
What is N,O,F directly bonded to Hydrogen
100
What is the equation for molarity?
What is M=mol/L soln
100
Julie is a chemist. In the lab she established the pH of the solution is 2.3. Is the solution acidic or basic?
What is acidic
100
What is the equation to determine bond order?
What is (nonbonding orbitals-antibonding orbitals) / 2
100
What is the charge on dichromate?
What is -2
200
For molecules that are nonpolar, what IMFs could be present?
What is london dispersion forces
200
Explain how to find the oxidation number of an atom.
What is use O.N. rules to distribute charges, solve for missing O.N.
200
If you are given the hydronium concentration of a solution. What equation (s) could you use to find the pH?
What is -log[H+] (not only solution)
200
Say for example, F2+ has a bond order of 2. What does this bond order mean?
What is this molecule exists
200
What are the solubility rules for hydroxide?
What is you do not have to know these rules for this exam!!! :)
300
T/F: Molecules with hydrogen bonding (H2O) always have dipole-dipole interactions.
What is true (all H bond molecules have dipole-dipole as well as dispersion forces).
300
What is the oxidation number of nitrogen in the polyatomic ion--nitrite
What is +3
300
Do we use the pH or the pOH at this level of chemistry to infer if a solution is acidic or basic?
What is pH
300
What is the difference between the MO diagram of F and C?
What is mixing occurs which changes the electron configuration order
300
What does a net ionic equation show us?
What is when spectator ions are canceled out, only left with solid species
400
T/F: Molecules with dipole-dipole interactions always have hydrogen bonding and dispersion forces present.
What is false
400
what is the formula used to find percent yield?
What is (actual/theoretical)x 100
400
Name 3 strong acids
What is HCl - hydrochloric acid
HBr - hydrobromic acid
HI - hydroiodic acid
HNO3 - nitric acid
HClO3 - chloric acid
HClO4 - perchloric acid
H2SO4 - sulfuric acid
400
F- has unpaired electrons. Is F paramagnetic or diamagnetic?
What is paramagnetic
400
When you perform a limiting reactant problem, and are asked to find the maximum # of grams the product produces--do you use the limiting reactant or excess amount?
What is limiting reactant
500
Which molecule has the lower boiling point? CO2 & CH4. Please provide evidence.
What is carbon dioxide
500
Al2S3 (s) + 6 H2O (l) = 2 Al(OH)3 (s) + 3 H2S (g)
100g of Al2S3 reacts with 100g of water. What is the limiting reactant?
What is Al2S3
500
Name 2 weak acids. How many weak acids did we discuss in lecture?
What is HF, H3PO4, CH3COOH
500
What is the spin (+1/2 or -1/2) associated with the last electron in a diamagnetic molecule?
What is -1/2
500
What is 1 tip of encouragement you can give to your group members?