3.32 How many moles of vanadium atoms, V, are needed combine with 0.565 mol of O atoms to make vanadium pentoxide, V205?

0.226 mol V

Explanation:

0.565 mol O x (2 mol V/5 mol O) = 0.226 mol V

Vanadium is a chemical element with the symbol V and atomic number 23. It is a hard, silvery-grey, malleable transition metal. The elemental metal is rarely found in nature, but once isolated artificially, the formation of an oxide layer (passivation) somewhat stabilizes the free metal against further oxidation.

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Explanation: