Problem- Halfway through his Conservation of Mass experiment, a Joe E. Cool realized that he forgot to weigh his crucible after heating it. Short of starting over, what can Joe do to ensure accurate results? Be specific and detailed in your answer.
Joe burned his magnesium sample and obtained a light gray product. Since his crucible looked dirty anyway Joe skipped the step of heating to constant mass, weighed the gray sample, and calculated the mass of the product. Was his resulting mass likely to be high or low?
Your answer must be supported by illustrations, Please answer with work shown to receive points: