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Question: in preparing a certain ointment a pharmacist used 3035 grams...

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In preparing a certain ointment, a pharmacist used 30.35 grams of zinc oxide instead of the 33.3 grams called for. calculate the percentage of error on the basis of the desired quantity. (Please put the number in percentage, i.e., if it is 20%, please just put 20 as the answer).

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