In an experiment, aluminum pieces inadvertently collect on the filter.?

Question

a) if left on the filter will the percent yield of the alum be reported too high or too low? Explain
b) if the Al pieces are detected on the filter what steps would be used to remedy the observation? Explain

thank you for any helo

Answer 1

a) too low. yield is what you get that you can use vs the maximum you should get

b) scrape it off

Answer 2

You do not have enough information to answer this. What is the experiment? Alum is different than aluminum so that is confusing. If the intent is to dissolve Al and you are finding pieces of Al on the filter, then you did not have enough solvent to dissolve all the Al or you did not allow enough time or a high enough temperature tocomplete the dissolution. Another possiblity is that the material caught on the filter is not Al but some component of the starting material that does not dissolve in your solvent.

Good luck