Friday paper shit Flashcards
(7 cards)
1
Q
during calorimetry what is the expression used to measure enthalpy changes?
A
q = mcTEMP change
q = heat transferred
Temp change = temp change
m = mass of solution
c = specific heat capacity (4.18)
2
Q
How to calculate the enthalpy change of a reaction per mole?
A
-q/n
3
Q
What is produced when a transition metal is placed in an aqueous solution?
A
An insoluble hydrated complex of [M(H2O)6]n+ where M is a metal
4
Q
WHat happens when sodium hydroxide is added to lead?
A
white ppt is formed
5
Q
Excess NaOH is added to lead_
A
white precipitate redissolves to form an ion.
6
Q
HCl is added to lead
A
dense white ppt
7
Q
KI is added to lead what happens
A
dense bright yellow ppt
