RP11 - Testing aq transition metal ions

Question 1

what’s the method for adding sodium hydroxide

Answer 1

1) place about 10 drops of metal ion solution in a test tube
2) add sodium hydroxide solution dropwise with a gentle shaking , until in excess

Question 2

what’s the method for adding ammonia solution

Answer 2

1) place about 10 drops of metal ion solution in a test tube
2) add ammonia in solution dropwise with a gentle shaking , until in excess

Question 3

what’s the method for adding sodium carbonate

Answer 3

• place about 10 drops of sodium carbonate solution in a test tube
• add about 10 drops of metal pin solution and shake mixture gently