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Kitty [74]
3 years ago
13

Please Help ME!!!!!!!!!!!!!!

Chemistry
1 answer:
Ksju [112]3 years ago
3 0

Answer:

The empirical formula of this question is :

C.

C_{5}H_{7}

Explanation:

The empirical formula is the simplest whole number ratio of elements in the chemical formula of  the molecule.

It is calculated using:

Empirical\ formula=\frac{Molecular\ formula}{n}

n = The common factor

The Molecular formula represents the exact composition of the elements in the compound.

For example :

Molecular formula : C4H8O2

<em>Find the common factor n ?</em>

<em>here , 2 is common factor(which is divisible by 4 ,8,2)</em>

Empirical\ formula=\frac{Molecular\ formula}{2}

divide each element by 2

Empirical\ formula=C_{2}H_{4}O_{1}

generally 1 is not written

C2H4O is the empirical formula

In this question , the molecular formula C40H56

n = common factor = 8(It is divisible by 40 , 56 )

Empirical\ formula=\frac{Molecular\ formula}{8}

Empirical\ formula=C_{5}H_{7}

So, correct option is<u> C</u>

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Please finds the complete question in the attached file.

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