12 Experimental techniques and chemical analysis

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Total cards: 24•Content version: v4•Public deck•Updated: 8/1/2026

Card preview (24)

Front (Question)

burette advantages and disadvantages

Back (Answer)

A: quite accurate, very controllable, good for multiple samples D: hard to clean, not versatile

Front (Question)

gas syringe advantages and disadvantages

Back (Answer)

A: precise scale, D: tendency to develop leaks over time, somewhat expensive

Front (Question)

solution

Back (Answer)

one or more solutes dissolved in a solvent

Front (Question)

saturated solution

Back (Answer)

solution containing the maximum concentration of a solute dissolved in the solvent at a specified temperature

Front (Question)

residue

Back (Answer)

susbtance that remains after evaporation, distilliation, filtration or any similar process

Front (Question)

filtrate

Back (Answer)

liquid or solutiont that has passed through a filter

Front (Question)

acid-base titration apparatus

Back (Answer)

burette, volumetric pipette, suitable indicator

Front (Question)

how to find the end-point of a titration using an indicator

Back (Answer)

colour change

Front (Question)

paper chromatography

Back (Answer)

used to separate mixtures of soluble colourless substances, using a suitable solvent and a locating agent

#10

Front (Question)

Back (Answer)

distance travelled by substance/distance travelled by solvent

#11

Front (Question)

how to test if a subtance is pure

Back (Answer)

check their melting and/or boiling point

#12

Front (Question)

testing carbonate

Back (Answer)

reaction with dilute acid and then testing for carbon dioxide gas (by bubbling through limewater)

#13

Front (Question)

testing chloride, bromide and iodide

Back (Answer)

acidifying with dilute nitric acid then adding aqueous silver nitrate: - Cl- = white ppt - Br- = cream ppt - I- = yellow ppt

#14

Front (Question)

testing nitrate

Back (Answer)

reduction with aluminium foil and aqueous sodium hydroxide and then testing for ammonia gas

#15

Front (Question)

sulfate

Back (Answer)

acidifying with dilute nitric acid and then adding barium nitrate

#16

Front (Question)

sulfite test

Back (Answer)

reaction with acidified aqueous potassium manganate

#17

Front (Question)

testing lithium ion

Back (Answer)

flame test = crimson flame

#18

Front (Question)

testing sodium ion

Back (Answer)

flame test = yellow/orange flame

#19

Front (Question)

testing potassium ion

Back (Answer)

flame test - lilac flame

#20

Front (Question)

testing calcium ion

Back (Answer)

flame test = brick red flame

#21

Front (Question)

testing copper ion

Back (Answer)

Flame test = blue-green flame NaOH = blue ppt (insoluble in excesss) NH3 = blue ppt (forms deep blue solution in excess)

#22

Front (Question)

testing iron (2)

Back (Answer)

make into a solution and add an excess of NaOH solution or NH3 solution = green precipitate w

#23

Front (Question)

testing iron (3)

Back (Answer)

make into a solution and add an excess of NaOH solution or NH3 solution = Brown precipitate

#24

Front (Question)

testing magnesium ions

Back (Answer)

Make into a solution and add an excess of NaOH solution or NH3 solution = white precipitate