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eduard
3 years ago
13

Which of the following does nitrogen have an oxidation state of +4?

Chemistry
1 answer:
Veseljchak [2.6K]3 years ago
7 0

the nitrogen have oxidation of <u>NO2</u>

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It kinda is

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Determine the volume of 12.3 grams of formaldehyde gas at STP?
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The empirical formula of a compound is CH2O and its molecular weight is 90.09 g/mol. Determine the molecular formula.
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Answer : The molecular formula of the compound will be, C_{3}H_{6}O_3

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 empirical formula of a compound is CH_2O and the molar mass of compound is, 90.09 gram/mol.

The empirical mass of CH_2O = 1(12) + 2(1) + 1(16) = 30 g/eq

n=\frac{\text{molecular mass}}{\text{empirical mass}}

n=\frac{90.09}{30}=3

Molecular formula = (CH_2O)_n=(CH_2O)_3=C_{3}H_{6}O_3

Thus, the molecular formula of the compound will be, C_{3}H_{6}O_3

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