Analysis Flashcards
If you add dilute hydrochloric acid and then barium chloride and it forms a white precipitate which ions are present?
Sulfate ions
If you add sodium hydroxide solution to an unknown chemical what colour precipitate would be formed at copper-CU2+
Light blue
What type of ion produces carbon dioxide when dilute hydrochloric acid is added to it?
Carbonate ions
Which ions precipitate dissolves in excess sodium hydroxide solution?
Aluminium ions
What colour does potassium go in a flame test?
Lilac
How would you test for negative ions in a Halide?
Add acidified silver nitrate solution
What is the test used to identify Carbon Dioxide gas?
By passing through limewater
How would you test for negative carbonate ions?
Add hydrochloric acid
Which element turns Crimson in a flame test?
Lithium
How can you test for sulphate ions?
Add barium solution with hcl and if it is present a white precipitate will form.
When testing for carbon ions, how can you tell if carbon dioxide has been made?
Add limewater and if it goes cloudy it has been formed
When performing the flame test, which substance turns the flame green?
Barium
If dilute nitric acid and silver nitrate was added to an unknown chemical and a yellow precipitate was formed, what substance would be present?
Iodine
