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Identification of ions by chemical and spectroscopic means key terms
Study Identification of ions by chemical and spectroscopic means with curriculum-aligned Key Terms resources, practice links, and exam-focused support.
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key terms
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Identification of ions by chemical and spectroscopic means
Key terms
sulfate ion test
A qualitative test that identifies sulfate ions using barium chloride solution.
carbonate ion test
A qualitative test that identifies carbonate ions by reacting with dilute acid to produce carbon dioxide.
sulfate ion test
A qualitative test using barium chloride solution to identify the presence of sulfate ions by forming a white precipitate.
safety precautions
Measures taken to ensure safety while conducting the sulfate ion test, including the use of appropriate personal protective equipment.
Halide ion test
A qualitative test that involves adding silver nitrate solution to a sample to identify the presence of halide ions based on the formation of a precipitate.
Silver nitrate
A chemical reagent used in the halide ion test that reacts with halide ions to produce a characteristic precipitate.
silver nitrate
A chemical compound used in the test for halide ions, which forms precipitates with different halides.
dilute nitric acid
A weak acid used to acidify samples before adding silver nitrate solution in halide ion tests.
chloride ion
A negatively charged ion (Cl-) that produces a white precipitate when reacted with silver nitrate solution.
white precipitate
A solid that forms and settles out of a solution, specifically observed when chloride ions react with silver nitrate.
Bromide ion
The negatively charged ion Br⁻ that reacts with acidified silver nitrate to form a cream‑coloured precipitate of silver bromide.
Cream precipitate
A pale yellowish‑brown solid that appears when bromide ions are added to acidified silver nitrate solution.
iodide ion
A negatively charged ion formed from iodine, which produces a yellow precipitate when reacted with silver nitrate.
yellow precipitate
A solid that forms and settles out of a solution, specifically produced when iodide ions react with silver nitrate.
Halide ion test
A qualitative test that uses acidified silver nitrate solution to identify halide ions based on the color of the precipitate formed.
Precipitate color
The observable color change that occurs when a halide ion reacts with acidified silver nitrate, indicating the presence of specific halide ions.
halide ion test
A qualitative test used to identify halide ions by adding silver nitrate solution.
carbonate ion test
A qualitative test that involves reacting carbonate ions with dilute acid to produce carbon dioxide.
halide ion test
A qualitative test to identify halide ions using silver nitrate solution.
safety precautions
Measures taken to ensure safety while conducting the halide ion test, including the use of personal protective equipment.
flame test
A qualitative test used to identify metal ions based on the characteristic color of the flame produced when the metal is heated.
unknown compound
A substance whose composition is not known and requires testing to identify the metal ions present.
sodium hydroxide solution
A solution used to test for metal ions by forming precipitates.
unknown compound
A substance whose composition is not known and requires testing to identify its ions.
carbonate test
A qualitative test for carbonate ions using dilute acid, which produces carbon dioxide gas.
sulfate test
A qualitative test for sulfate ions using barium chloride solution, which produces a white precipitate of barium sulfate.
observation
The act of noting and recording data during ion identification tests.
ion identification tests
Experiments conducted to determine the presence of specific ions in a sample.
observation
The act of noting and recording phenomena during experiments.
conclusion
A reasoned judgment or decision based on the observations made during an experiment.
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