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Chemistry / GCSE Chemistry 11L1: 3.4 Further Analysis and Quantitative Chemistry

GCSE Chemistry 11L1: 3.4 Further Analysis and Quantitative Chemistry

Chemistry20 CardsCreated 8 months ago

This deck covers key concepts in flame tests, halide and sulphate ion tests, titrations, and the identification of carbonate ions, as outlined in the GCSE Chemistry curriculum.

In the flame test, calcium has what colour?

Yellow-red

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Key Terms

Term

Definition

In the flame test, calcium has what colour?

Yellow-red

What is the colour from the flame test of copper?

Green-blue

What metal gives a lilac flame?

Potassium

In the flame test, what is the colour given by sodium?

Orange

Do you test for halides?

Add a dilute nitric acid then silver nitrate

Why do you have to add nitric acid to a halide solution when analysing it?

Because all other acids will react with the silver nitrate making a white precipitate

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GCSE Chemistry 11L1: 3.4 Further Analysis and Quantitative Chemistry

Term	Definition
In the flame test, calcium has what colour?	Yellow-red
What is the colour from the flame test of copper?	Green-blue
What metal gives a lilac flame?	Potassium
In the flame test, what is the colour given by sodium?	Orange
Do you test for halides?	Add a dilute nitric acid then silver nitrate
Why do you have to add nitric acid to a halide solution when analysing it?	Because all other acids will react with the silver nitrate making a white precipitate
Name three halides and what colour precipitates are formed.	Chloride Cl- : a white precipitate Bromide Br- : a cream precipitate Iodine I- : a yellow precipitate
What two substances do you add to a solution to see if it contains sulphate ions?	Dilute hydrochloric acid thence barium chloride
What will be formed if sulphate ions are present and you have added hydrochloric acid and barium chloride?	A white precipitate will form
The colour brick red is given from what metal flame test?	Lithium
In the flame test, what metal has a pale green flame?	Barium
Why do we use a white tile in titrations?	To help see a colour change
When do we stop repeating measurements for titrations?	When concordant results are achieved.
How do you convert a number from cm^3 to dm^3?	Divide the number by 1000
What indicator is often used in titrations?	Phenolphthalein
What colour is the precipitate when testing Chloride ions?	White
What do you add to a solution you believe has carbonate ions in to know for sure?	A dilute acid for example hydrochloric
What will happen when an acid is added to a solution with carbonate ions?	It will fizz and CO2 will form
How can you test if CO2 has been formed when adding an acid to a possible carbonate solution?	By connecting the test tube to another holding limewater the CO2 will turn the lime water cloudy
What are the three negative ions you need to know the tests for for GCSE?	Carbonates Halides Sulphates