Midterm 1

Question 1

Ksp =

for products Ax and By

Answer 1

[x]^A[y]^B

Question 2

Molar solubility given ksp

Answer 2

rice table and solve for x, then use ratio’s to get molarity dissolved

Question 3

Common Ion calculations

Answer 3

just use modified rice table

Question 4

Common Ion Effect does what to soluble salts

Answer 4

Decreases solubility because le Chateliers principle, equilibrium will shift towards the reactants, as the common ion is a product

Question 5

does NH₃ become aqueous when dissolved

Answer 5

yes

Question 6

Big K_f means what

Answer 6

Much greater than 1 means it is strongly products favored

Question 7

When combining chemical equations you do what to get K

Answer 7

if eq is scaled that is the power for its k, then you mulitply them together, if one is reversed its to the -1

Question 8

The anode contains what species

Answer 8

that which is oxidized

Question 9

the cathode contains what species

Answer 9

that which is reduced

Question 10

spontaneous reactions have what E_cell

Answer 10

positive!

Question 11

what happens to a galvanic cell when a current is run through it?

Answer 11

it reverses!