The empirical formula of a compound is NO2. Its molecular mass is 9.2g/mol. What is its molecular formula?

Molecular formula = N2O4

Explanation:

The empirical formula of a compound is NO2. Its molecular mass is 92g/mol. What is its molecular formula?

Step 1: Data given

The empirical formula = NO2

The molecular formula = NO2

Molar mass N = 14 g/mol

Molar mass O = 16 g/mol

Step 2: Calculate molecular mass of the empirical formula

Molar mass NO2 = molar mass N + Molar mass of 2*O

Molar mass NO2 = 14 + 2*16

Molar mass  = 46 g/mol

Step 3: Calculate the molecular formula

We have to multiply the empirical formula by n

n = molecular mass / molecular mass of the empirical formula

n = 92 g/mol / 46 g/mol

n = 2

We have to multiply the empirical formula by 2

Molecular formula = 2*(NO2)

Molecular formula = N2O4

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the answer is: they rebelled against saddam hussein’s rule.

kurds opposed saddam rule and wanted independence. kurds in the north and shiites in the south revolt against hussein.

for example, the halabja attack in 1988 conducted against the kurdish people by the iraqi regime under saddam hussein, where between 4000 people are killed and around 9000 are injured.