In the qualitative test for nitrate anion, the test goes like this: -

Question

In the qualitative test for nitrate anion, the test goes like this: -

Add dilute sodium hydroxide, then add a little aluminium powder. Warm.

When describing the test, is it acceptable to use the word "mixture" as in "warm the mixture"? thanks.

Answer 1

Yes, there are unreacted ions present, there is ammonia gas dissolved in the solution.

Answer 2

Yes, it is acceptable to use the word "mixture" when describing the test as "warm the mixture." In this context, the term "mixture" refers to the combination of the reactants used in the test, which includes dilute sodium hydroxide and aluminium powder.