A sample of 7.2 moles of the ionic compound, potassium dichromate, K2Cr2O7, is present. How many formula units are in that number of moles?

Chemistry In Focus
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Chapter4: Molecules, Compounds, And Chemical Reactions
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Problem 32E: The formula mass of an unknown compound containing only C and H is 70.1 amu. What is its molecular...
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A sample of 7.2 moles of the ionic compound, potassium dichromate, K2Cr2O7, is present.
How many formula units are in that number of moles?

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