Electrolysis, paper 1. Flashcards Preview

Chemistry > Electrolysis, paper 1. > Flashcards

Flashcards in Electrolysis, paper 1. Deck (13)
Loading flashcards...
1
Q

Moles definition

A
  • molecular mass inn grams.

- avagandros number of molecules in a pure substance.

2
Q

Avagandros number

A

6.023 X 10(23) atoms

3
Q

Electrolysis

A
  • Separates a ionic solution in liquid or aqueous form.
  • anions —> anode
  • cations —>cathode.
4
Q

Anion

A

-

5
Q

Cation

A

+

6
Q

Anode

A

+

7
Q

Cathode

A

-

8
Q

Power source of electrolysis

A

DC

9
Q

Why preform electrolysis

A
  • Coats things in metal.

- purifies elements.

10
Q

Imperial formular

A

This is the simplest ratio of elements in a compound.

11
Q

Oxidation

A

Loss of electrons, from negative charge to neutral.

12
Q

Reduction

A

Gain of electrons. Loss of posertive charge.

13
Q

The Harber process

A

N2 + (3)H2 = (2)NH3

  • nitrogen gained from fractional distillation with air.
  • Hydrogen from natural gas or water electrolysis
  • ammonium used to replenish soil neutriants