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Flashcards in Inorganic Deck (13)
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1
Q

CuSO4 + HCl->?

What colour

A

(CuCl4)2- yellow

2
Q

When mentioning empirical formula of a complex what must be included

A

Ratio and overall charge

3
Q

Define enthalpy hydration

A

When one mole of gaseous ions become hydrated in water

4
Q

What are the directions of an energy cycle

A

Gaseous ions

|                          |
|                          V
|                       Enthalpy of hydration
|
|          Enthalpy change of solution 
|                         |
V                        |
Ionic lattice
5
Q

Explain using a calculation why X dissolves in water at 25 degrees despite being endothermic

A

Delta pG=delta H -Tde,taS

Delta g is less than 0

6
Q

12->I2(s). What happens when AgNO3 is added

A

Yellow precipitate equilibrium shifts to the left to get more I2 (Aq)

7
Q

What happens when I2 reacts with OH-

A

3I2 + 6OH- -> 5I- + IO3- + 3H2O

8
Q

What happens when a base eg NaOH is added to a buffer

A

H+ reacts with OH-

Equilibrium shifts to the right

9
Q

Adding H+ to buffer

A

H+ + A- -> HA

Equilibrium shifts to the left

10
Q

When drawing a cell diagram what must you not forget to show

A

Direction of electrons

11
Q

Nickel in a water complex forms nickel cyanide and water. What type of reaction is this?

A

Ligand substitution

12
Q

Nickel in a water complex forms nickel hydroxide. What type of reaction is this?

A

Precipitation

13
Q

Electronic configuration of Cu1+

A

1s2 2s2 2p6 3s2 3p6 3d9