____________ when a half-cell is connected to a standard _____________ electrode under _____________ conditions , (298 K, 1 atm, solutions 1 mol dm–3).
Other Answer Choices:
voltage
hydrogen
standard
Question 3
3.
A salt bridge is used in an electrochemical cell. State the function of the salt bridge. Explain your answer
_________ move from the salt bridge to complete the ____________
Other Answer Choices:
ions
circuit
Question 4
4.
Question 5
5.
ionic equation
EoCell = _______ (sign) _______ (value) V
Colour change = _______ to _______
Question 6
6.
Sn2+ + 2Fe3+ → Sn4+ + 2Fe2+
(ii) Calculate the e E ɵcell = _______
Question 7
7.
Question 8
8.
Question 9
9.
Question 10
10.
a
b
c
When an alkene is added to a solution of potassium manganate(VII), the purple solution turns colorless. In terms of electron transfer and oxidation number, how does the manganese change in this reaction?
a
b
c
d
The standard hydrogen electrode uses an electrode of platinum coated in a finely divided form of the metal called platinum black. What is the purpose of this coating?
A) To increase the rate of the equilibrium between the hydrogen gas and the hydrogen ions
B) To provide an inert protective coating for the electrode
C) To increase the electrical conductivity of the electrode