I need help with these questions in chemistry lab

1) What would the effect have been on the calculated weight of your unknown as compared to the true formula mass if the solution had been blue green when you filtered you product? Too high, Too Low, or Unchanged (Explain)

2) What would the effect have been on the calculated weight of your unknown as compared to the true formula mass if the solution had not quit bubbling when you filtered your product? Too high, Too Low, or Unchanged (Explain)