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Sagot :
Molecular formula of the compound is P₄O₁₀.
In this case, you know:
The empirical formula for a given compound is P₂O₅.
The molar mass of the actual compound is 283.88 g/mol.
The mass for empirical formula of P₂O₅:
P₂O₅ = 2×30.97 g/mol + 5×16.00 g/mol = 141.94 g/mol
So, the value "n" is calculated as:
n= mass of molecular formula÷ mass of empirica formula
n=283.88 g/mol÷ 141.94 g/mol
n= 2
Then, the molecular formula is calculated as:
Molecular formula = (P₂O₅)₂
Molecular formula= P₄O₁₀
What is Molecular formula?
Chemical formula that specifies how many atoms of each element there are in each molecule of a substance; see structural formula.
Subtract the empirical formula for molar mass from the compound's molar mass. The outcome must be a whole number or a value that is extremely near to a whole number. Divide the whole number from step 2 by each subscript in the empirical formula. The molecular equation is the end product.
An statement that lists the quantity and kind of atoms in a substance's molecules is known as a molecular formula. Examples include the hexane molecule, which has the chemical formula C6H14 and has 6 C atoms and 14 H atoms.
To learn more about Molecular formula from the given link:
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