28.5 mol of p4o10 contains how many moles of p?

There are 114 moles of phosphorus, P, in 28.5 moles of P₄O₁₀.

FURTHER EXPLANATIONThe chemical formula of a compound consists of the chemical symbol of the elements that make up the compound and a small number written to the right of the symbol or the subscript.The subscript indicates how many atoms of that element is found in one unit (formula unit or molecule) of the compound.  It also indicates how many moles of the atom are present in one mole of the compound. Example,  the chemical formula of carbon dioxide is CO₂. This can be interpreted in two ways:

              1) There is one carbon atom and two oxygen atoms in one

                 molecule of carbon dioxide.

              2) There is one mole of carbon atoms and 2 moles of oxygen

                   atoms in one mole of the compound.

It is important to remember that the mole concept considers particles in bundles (or sacks) with one mole being one bundle (or sack) which consists of 6.022 ×10²³ particles. This number is called Avogadro's number.

The compound in the problem is P₄O₁₀. Similar to the example, this chemical formula can be interpreted in two ways:

There are 4 atoms of phosphorus and 10 atoms of oxygen in one molecule of P₄O₁₀.There are 4 moles of phosphorus atoms and 10 moles of oxygen atoms in one mole of P₄O₁₀.

To determine how many moles of phosphorus are in 28.5 moles of P₄O₁₀, the equation below may be used:

LEARN MOREChemical Formula  Naming Chemicals Compounds

Keywords: moles, mole ratio

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