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A lab requires 20.5g of KNO₃. How many moles of KNO₃ are being used in the lab. Your answer should include a correct numerical set up. What is the approximate percent by mass of the water in the hydrated salt? [Show all work.] *
we have a formula that mole= reacting mass/ molar Mass and the molar Mass of KNO3 is 101 so since mole is reacting mass/ molar Mass and our reacting mass is 20.5 then divided it by 101 it is equal to 0.2
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