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2 years ago

The empirical formula for a compound is c2h5 and its formula mass is 58 amu. what is its molecular formula?

Chemistry

2 answers:

Nat2105 [25]2 years ago

4 0

Molecular formula of compound is C4H10

jasenka [17]2 years ago

4 0

Answer: $C_4H_{10}$

Explanation:

Molecular formula is the chemical formula which depicts the actual number of atoms of each element present in the compound.

Empirical formula is the simplest chemical formula which depicts the whole number of atoms of each element present in the compound.

To calculate the molecular formula, we need to find the valency which is multiplied by each element to get the molecular formula.

Given empirical formula is $C_2H_5$ Empirical mass = $2\times 12+1\times 5=29amu$

The equation used to calculate the valency is:

$n=\frac{\text{molecular mass}}{\text{empirical mass}}=\frac{58}{29}=2$

The molecular formula will be $C_2H_5\times 2=C_4H_{10}$

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Answer:

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Explanation:

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Alenkasestr [34]

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Explanation:

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structure of organic compounds

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2 years ago

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Read 2 more answers

The stock solution of hydrochloric acid is 12.0M HCI. If the teacher starts with 130 ml of this concentrated acid, what volume o

tatyana61 [14]

Answer:

520mL

Explanation:

Data obtained from the question include:

Molarity of stock solution (M1) = 12M

Volume of stock solution (V1) = 130mL

Molarity of diluted solution (M2) = 3M

Volume of diluted (V2) =..?

The volume of the diluted solution can be obtained as follow:

M1V1 = M2V2

12 x 130 = 3 x V2

Divide both side by 3

V2 = 12 x 130 / 3

V2 = 520mL.

Therefore, 520mL of the diluted solution can be prepared.

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3 years ago