Topic 9 Flashcards
Why is the test for any ion unique?
The results of a test must let you determine which ion is present, rather than being uncertain about which ion it is.
Flame test for lithium, Li (in solid ions)
Red flame
Flame test for Sodium, Na (in solid ions)
Yellow flame
Flame test for Potassium, K (in solid ions)
Lilac flame
Flame test for Calcium, Ca (in solid ions)
Orange / red flame
Flame test for Copper, Cu (in solid ions)
Green / blue flame
Test for Aluminium, Al using sodium hydroxide solution
Test for Calcium, Ca using sodium hydroxide solution
Test for Copper, Cu using sodium hydroxide solution
Test for Iron (II), Fe using sodium hydroxide solution
Test for Iron (III), Fe using sodium hydroxide solution
Test for Ammonium, NH4 using sodium hydroxide solution
Describe the chemical test for Ammonia
Test for carbonate ion, CO3 using dilute acid and identifying the carbon dioxide evolved
Test for sulfate ion, SO4 using dilute hydrochloric acid and barium chloride solution
Test for chloride ion, Cl, bromide ion, Br, iodide ion, I, using dilute nitric acid and silver nitrate solution
Recall the formulae of molecules of methane
Recall the formulae of molecules of ethane
Recall the formulae of molecules of propane
Recall the formulae of molecules of butane
Why are alkanes saturated hydrocarbons?
Recall the formulae of molecules of methene
Recall the formulae of molecules of ethene
Recall the formulae of molecules of propene
Recall the formulae of molecules of butene
Why are alkenes unsaturated hydrocarbons?
How is bromine water used to distinguish between alkanes and alkenes?