The unit used to measure amounts of elements and compounds
Gram
Mole
Kilogram
Electron volt
The mass of on mole of carbon atom
12 g
56g
2g
100g
The relative atomic mass (Ar) of chlorine is
64
12
35.5
27
The standard atom chosen to compare the man of all other atom is
Fluorine
Hydrogen
Carbon
Oxygen
Hydrated Copper sulphate crystal is
CaSO4 H2O
CaSO4 4H2O
CuSO45H2O
CuSO4
The average mass of the naturally occurring atoms of the element, using a scale where an atom of carbon-12 has a mass of exactly 12
Atomic mass
Molecular mass
Gram atomic mass
Relative atomic mass
The substance which is in layer quantity in a solution is called
Solute
Salt
Precipitate
Solvent
The Faraday constant is
96500 c/mol
6.023×1023 mol
9.4 × 1021 kg
1.0008 g
The change on one mole of electrons is
IC
96500 coulombs
600 c
2c
The mass of one hydrogen atoms is
1. 6 ×-10-31
1.7 × 10-24
6. 1 × 1023
2.1 × 10-28
