- Messages
- 19
- Reaction score
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- Points
- 13
give a reason for each of the following statements
a) Before using an indicator paper to test for ammonia, the paper should be moistened with water. (why)
b) if an aqueous solution is known to contain either Al(3+) aqueous or Zn(2+) aqueous , addition of aqueous ammonia will show which ion is present.
c) when testing for chloride, the solution should be acidified with dilute nitric acid before either aqueous silver nitrate or aqueous lead(II)nitrate is added.
[ 6 marks]
please help me....i will be very grateful to you...pleaseeee...
a) Before using an indicator paper to test for ammonia, the paper should be moistened with water. (why)
b) if an aqueous solution is known to contain either Al(3+) aqueous or Zn(2+) aqueous , addition of aqueous ammonia will show which ion is present.
c) when testing for chloride, the solution should be acidified with dilute nitric acid before either aqueous silver nitrate or aqueous lead(II)nitrate is added.
[ 6 marks]
please help me....i will be very grateful to you...pleaseeee...