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5. How many moles are in 19 grams of KNO,?

1 Answer

7 votes

Answer:

Step-by-step explanation:

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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