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Marrrta [24]
2 years ago
15

what is the molecular formula of benzoyl peroxide (c7h5o2) of the molecular mass is 0.242 kg/mol?(show work please)

Chemistry
1 answer:
AfilCa [17]2 years ago
6 0

Answer : The molecular formula of benzoyl peroxide is C_{14}H_{10}O_4

Explanation :

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

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

For determining the molecular formula, we need to determine the valency which is multiplied by each element to get the molecular formula.

The equation used to calculate the valency is :

n=\frac{\text{Molecular mass}}{\text{Empirical mass}}

As we are given that the molar mass of compound is, 0.242 kg/mol.

Molecular mass = 0.242 kg/mol = 242 g/mol      (1 kg = 1000 g)

The empirical mass of C_7H_5O_2 = 7(12) + 5(1) + 2(16) = 121 g/eq

n=\frac{\text{Molecular mass}}{\text{Empirical mass}}

n=\frac{242}{121}

n=2

Molecular formula = (C_7H_5O_2)_n = (C_7H_5O_2)_2 = C_{14}H_{10}O_4

Thus, the molecular formula of benzoyl peroxide is C_{14}H_{10}O_4

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Answer:

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Explanation:

The expression that best describes this reaction is that the same amount of carbon will be found in the reactants as in the products.

During the process of photosynthesis, carbon dioxide combines with water using solar energy to produce glucose and oxygen.

It can expressed as depicted below:

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To validate our choice;

 This is a balanced chemical equation:

        6 moles of carbon is found on the reactant side and also, 6 mole of carbon on the product side.

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3 years ago
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In the laboratory you are asked to make a 0.303 m cobalt(II) sulfate solution using 275 grams of water. How many grams of cobalt
valentinak56 [21]

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