What could have accounted for a percent yield of
less than 100% in this lab?
check all that apply.
•the copper chloride did not fully dissolve in
water before performing the reaction.
•the mass of the copper was not measured
with the same accuracy.
•not all of the copper was collected in the filter.
•not enough time was allowed for all of the
aluminum to react.
•there were impurities in the aluminum.