C12

Cards (19)

Impurities lower melting point of substance and raise boling point
In paper chromatography, the mobile phase is the solvent
In paper chromatography, the stationary phase is paper
A substance with strong forces of attraction to solvent than paper will travel further in a set time
The more soluble a substance is in the solvent, the further up the paper it is carried
in flame test, lithium produces crimson flame
in flame test, sodium produces yellow flame
in flame test, potassium produces lilac flame
in flame test, calcium produces orange-red flame
in flame test, copper produces green flame
in excess NaOH, precipitate of aluminium hydroxide dissolves
in excess NaOH, precipitate of calcium and magnesium remain insoluble
Copper(II) ions produces blue precipitate with NaOH
Iron (II) ions produce green precipitate with NaOH
Iron (III) ions produce brown precipitate with NaOH
With nitric acid and silver nitrate solution, chloride ions give white precipitate.
With nitric acid and silver nitrate solution, bromide ions give cream precipitate.
With nitric acid and silver nitrate solution, iodide ions give yellow precipitate.
Sulfate ion test: Add barium chloride and hydrochloric acid and white precipitate forms