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

answers: to make sure that all of the broken pieces of tablet were added to the water, to allow for fair comparison of all three trials, with different particle sizes to avoid experimental error

it would be a gas formation