102. What is the Pauli exclusion principle? What is Hund's rule?

1 answer:

5 0

<em> Pauli Exclusion Principle is about quantum numbers of an atom. Hund rule is about how electrons are filled to the orbitals of an atom.</em>

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For the following reaction if you have 13.2g of CO and 42.7g of Fe2O3, which is the limiting reagent with regards to the Fe prod

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Answer: CO is a limiting reagent with regards to the Fe production.

Explanation:

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moles of $Fe_2O_3=\frac{\text{mass of} Fe_2O_3}{\text{molar mass of}Fe_2O_3}=\frac{42.7 g g}{159.7 g/mol}=0.2673 mol$

According to reaction , 3 mole of CO reacts with 1 mole of $Fe_2O_3$ then , 0.4714 moles of CO will react with : $\frac{1}{3}\times 0.4714$ moles of $Fe_2O_3$ that is 0.1571 moles.

0.4714 moles of CO will react with 0.1571 moles of $Fe_2O_3$ which means that CO is present in limited amount acting as limiting reagent.

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