review
What is an ion?
Atom with electron added or removed
what are the names of the people in the swim team
Bao, Micheal, Mirek , Andrea
What is an acid? What is a base?
Acid: Donates H+/protons, Base Accepts H+/protons
If you're titrating an acid what do you titrate with?
base
An acid-base reaction reaches equilibrium
when the rate of the forward reaction (acid dissociation) becomes equal to the rate of the reverse reaction (recombination of ions), resulting in a constant concentration of reactants and products
If you double the volume of a gas what will happen to the pressure (Holding everything else the same)?
Pressure will half.
who is scared of ants
leilani
What does [H+]>[OH-] mean?
Acidic solution
How do you know if you have over titrated a solution (based on our lab)?
turns hot pink
What is the percent ionization of strong acids and bases?
100%
If an reaction is second order what will be the linear graph for it relative to time?
1/[conc]
how many people name starts with mi
3
Bronsted-lowry definition
Acid:has at least one removable (acidic) proton (H+) to donate → proton donor
Base: has at least one nonbonding pair of electrons to accept a proton (H+) → proton acceptor
Common solution used in titration?
NaOh
Where does equilibrium lie in an acid - base reaction?
towards the side with the weaker acid and weaker base
How and why would the structure of AgCl2 vs AgBr2 be different?
Bigger b/c different shells
who is scared of cockroaches
Bao
Why is water special
Water is Amphiprotic, it can accept and donate a proton
In a titration experiment, 30 mL of 0.2 M NaOH is used to titrate 25 mL of a strong acid solution. What is the pH at the equivalence point?
7 (Since it’s a strong acid-strong base titration, the pH at the equivalence point is neutral at 7.)
What is the pH of 1.0x10^-3 M of KOH?
11
Calculate how many grams of NaOH are needed to make a 100mL solution of 0.1 M
0.4 grams of NaOH are needed to make a 100 mL solution of 0.1 M.
who in class rock-climes
Micah
calculate the concentration of [H+] in the solution → [OH−] = 1.8 × 10−9M
[H+][OH-] = 1.0 X 10-14
[H+] = (1.0 X 10-14) / [OH-] = 1.0 X 10-14 / 0.010 = 1.0 X 10-12 M [OH-] > [H+]
If 25mL of 0.1 NaOH are used to titrate a 20mL solution of strong acid the pH is what?
0.9
Calculate the pH of a 0.47M NH3 (Kb = 1.8 x 10-5) solution.
11.46