Chemistry- Analysing Substances (Further)

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What does chemical analysis used for?
Blood tests, monitior general health, can diagnose diseases. Police, alcohol content. Water companies, anaylising tap water for dangerous chemicals.
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What does qualitative tell you?
What is present
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What does quantative tell you?
How much is present
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What do you use to test for positive ions and what does it give?
NaOH to give a coloured precipitate
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What colours do calcium, copper, iron (Fe2), iron (Fe3), aluminium and ammonium?
calcium WHITE, copper BLUE, iron (Fe2) GREEN, iron (Fe3) BROWN, aluminium WHITE->COLOURLESS and ammonium AMMONIA (when heated)
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What acid and nitrate do you use to test for halides?
Nitric acid and Silver Nitrate.
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What does chloride give?
White precipitate wof silver chloride.
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What does bromide give?
A cream precipitate of silver bromide.
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What does iodide give?
A yellow precipitate of silver iodide.
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What does sulfates using hydrocloric acid and barium chloride give?
white precipitate of barium sulfate
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Test for carbonates using dilute acid gives off..?
CO2 gas, which will turn limewater milky/cloudy.
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Other cards in this set

Card 2

Front

What does qualitative tell you?

Back

What is present

Card 3

Front

What does quantative tell you?

Back

Preview of the front of card 3

Card 4

Front

What do you use to test for positive ions and what does it give?

Back

Preview of the front of card 4

Card 5

Front

What colours do calcium, copper, iron (Fe2), iron (Fe3), aluminium and ammonium?

Back

Preview of the front of card 5
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