Tests For Ions: Carbonates+sulfates

Question 1

how do you test for carbonate ions?

Answer 1

use hcl
-add hcl to the carbonate ion
-to form CO2 and water

Question 2

what is the equation for the carbonate ion reaction with hcl?

Answer 2

CO2,2- + 2H+ –> CO2 + H2O

Question 3

hwo do you know carbon dioxide is produced?

Answer 3

there will be fizzing of the carbonate

Question 4

how can u test that this fizz is carbon dioxide?

Answer 4

you buubl gas through a test tube of lime water
-if turns cloudy carbon dixide is the gas
-carbonate ion is present.

Question 5

how do you test for a sulfate ion?

Answer 5

-use dilute hcl
-then following by barium chloride
-white precipitate will form of barium sulfate
-original compound ocntained sulfate

Question 6

Why do we add hcl to our solution when testing for sulfates ?

Answer 6

to eliminate carbonate ions

Question 7

why do we add dilute HCL?

Answer 7

TO ELIMINATE ANY CARRBONATES THAT could potentially give false results