Problem: Calculate the number of oxygen atoms in a 9.00 g sample of vanadium (V) oxide (V2O5).Be sure your answer has a unit symbol if necessary, and round it to 3 significant figures.

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For this problem, we’re being asked to determine the number of oxygen atoms in a 9.00 g sample of vanadium (V) oxide (V2O5). . The flow for this problem will be like this:


Mass of V2O5(molar mass of V2O5)  Moles of  V2O5 (mole-to-mole comparison) Moles of O (Avogadro’s number)  Atoms of O


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Problem Details

Calculate the number of oxygen atoms in a 9.00 g sample of vanadium (V) oxide (V2O5).

Be sure your answer has a unit symbol if necessary, and round it to 3 significant figures.

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Mole Concept concept. You can view video lessons to learn Mole Concept. Or if you need more Mole Concept practice, you can also practice Mole Concept practice problems.