Testing for Carbonate Ions Flashcards
1
Q
A
2
Q
A small amount (around 1 cm3) of dilute hydrochloric acid should be added to a test tube using a pipette
An equal amount of sodium carbonate solution should then be added to the test tube using a clean pipette
As soon as the sodium carbonate solution is added, a bung with a delivery tube should be attached to the test tube
The delivery tube should transfer the gas which is formed into a different test tube which contains a small amount of limewater (calcium hydroxide solution)
Carbonate ions will react with hydrogen ions from
A
the acid to produce carbon dioxide gas
3
Q
A
4
Q
Carbon dioxide gas will turn the limewater
A
milky
