Answer:
- Put the precipitate on a sheet of white paper.
Explanation:
Placing the precipitate on a sheet of white paper, will allow you to contrast any color better, even pale pink.
If the precipitate is pink, the color will stand out more on the white background of the sheet of paper. If the precipitate is white you will notice that the color is almost the same as the paper. It is likely not exactly the same: when you are aware, you will notice that there are many shades of white.
