experiment 3: qualitative analysis of anions

Question 1

title of the experiment

Answer 1

qualitative analysis of anions

Question 2

in qualitative analysis, what question is important to answer

Answer 2

“what is present?”

Question 3

test solutions used

Answer 3

0.05M sodium chloride
0.05M sodium carbonate
0.05M sodium sulphate
0.05M sodium nitrate

Question 4

reagents used

Answer 4

6M acetic acid
6M hydrochloric acid
6Mammonia
6M sodium hydroxide
unknown solution
sat. barium hydroxide
0.1 barium chloride
0.1 silver nitrate

Question 5

instruments used

Answer 5

centrifuge and water bath

Question 6

what are the procedures

Answer 6

separation of confirmation of chloride
confirmation of carbonate
confirmation of sulfate
confirmation of nitrate

Question 7

what are the objectives

Answer 7

learn how to use centrifuge
apply the qualitative analysis to identify anions present in the unknown solution
understand the basic principle on separation of anions based on their chemical properties

Question 8

the analysis of anion in a solution is __________

Answer 8

quite indirect

Question 9

the analysis of anion in a solution is quite indirect. hence, it involves _________ of separation then __________ to check the anion’s identity

Answer 9

1 to 2
confirmatory tests

Question 10

the groupings of anions are based on their reactions with __________ and the difference in _______ of the _________and __________

Answer 10

hydrochloric acid
solubilities
barium ion
silver salts