The change on one mole of electrons is:
IC
96500 coulombs
600 c
2c
The mass of on mole of carbon atom.
12 g
56g
2g
100g
A solution whose concentration is known precisely.
Acidic solution
Basic solution
Standard solution
Electrolytic solution
The relative formula mass of calcium carbonate is:
80
44
246
100
Hydrated copper sulphate crystal is:
CaSO4 .H2O
CaSO4. 4H2O
CuSO4.5H2O
CuSO4
The standard atom chosen to compare the mass of all other atom.
Fluorine
Hydrogen
Carbon
Oxygen
The mass of the product is equal to the total mass of the reactants. This is:
Law of conservation of mass
Law of constant proportion
Law of relative mass
Law of reciprocal proportion
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 sum of the relative atomic masses of the elements present in a formula unit is:
Relative molecular mass
Relative gram atomic weight
Relative formula mass
Avogadro constant is:
6.02 × 1023
6.02 × 1028
7.1 × 10-31
6.02
