How many grams of dry alum can be obtained from 20.0g of, Ask an Expert

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How many grams of DRY alum can be obtained from 20.0g of aluminum when the reactions proceeds with 60.0% yield? How many grams of WET alum can be obtained from 20.0g of aluminum when the reactions proceeds with 60.0% yield, but for every 4 grams of alum there is one gram of excess water isolated with it?

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