Chemistry, 07.03.2020 07:31 GabbyLandry

The molar mass of a compound is 92 g/mol. Analysis of a sample of the compound indicates that it contains 0.606g of N and 1.390g of O. Find its molecular formula.

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The molecular formula shows the actual number of atoms of each element present in a compound. The molecular formula is different for different compounds.

The molecular formula of the given compound in the question is N_2O_4

An empirical formula is calculated first to find the molecular formula. First, let us calculate the empirical formula for the compound.

The data given in the question is as N is 0.606g and O is 1.390g

After solving the equation,

$N = \frac{0.606}{14} = 0.0432\\\\O =\frac{1.390}{16} = 0.0869$

Divide it by the smallest outcomes

$N = \frac{0.0432}{0.0432} = 1\\\\O = \frac{0.0869}{0.0432} = 2$

The empirical formula is NO2. Now we have to find the molecular formula.

[NO2]n = 92[14 + (16x2)]n = 92[14 +32]n = 9246n = 92

After solving the equation the value of 'n' is 2.

Hence, The molecular formula

$[NO2]n \\= [NO2]2\\ = N2O4$

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Answer from: china236

N2O4

Explanation:

To obtain the molecular formula of the compound, first, let us calculate the empirical formula for the compound. This is illustrated below:

N = 0.606g

O = 1.390g

Next, we divide the above by their molar masses

N = 0.606/14 = 0.0432

O = 1.390/16 = 0.0869

Next, we divide by the smallest

N = 0.0432/0.0432 = 1

O = 0.0869/0.0432 = 2

The empirical formula is NO2

The molecular formula is given by:

[NO2]n = 92

[14 + (16x2)]n = 92

[14 +32]n = 92

46n = 92

Divide both side by the coefficient of n i.e 46

n = 92/46

n = 2

The molecular formula = [NO2]n = [NO2]2 = N2O4

Answer from: Quest

some sources quote the lethal dose, for an average 170lbs opiate-naive individual is between 75 and 375 mg

Answer from: Quest

explanation:

let the different atoms be x and y. each with four protons and same mass will be represented as follows.

mass number is number of protons + number of neutrons.

$^{m}_{4}x$ and $^{m}_4y$

since, it is given that one has a negative charge while the other is neutral. therefore, there will be increase in number of protons and the atom will be represented as follows.

$^{m}_{5}x^{-}$

according to periodic table, mass number of beryllium is 9 and it has atomic number 4 so, the atoms will be $^{9}_{5}be^{-}$ and $^{9}_{4}be$ .

the protons and neutrons will be located inside the nucleus whereas the electrons will be revolving around the nucleus.

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The molar mass of a compound is 92 g/mol. Analysis of a sample of the compound indicates that it con...