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Myah Watson
Chemistry
25 October, 09:40
5. How many moles are in 19 grams of KNO,?
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Jocelynn Carpenter
25 October, 09:50
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n = m/M
n is moles
m is mass
M is molar mass
m=19 grams
M of KNO = 69g/mol
now substitute;
n = 19/69
n=0.275 moles
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