No: The formula NO shows equal numbers of nitrogen and oxygen atoms in the compound, but the formula NO2 shows twice as many oxygen atoms as nitrogen atoms.
The empirical formula for nitrogen dioxide is the same as its molecular formula - NO2. See related question below for more details on how to find empirical formulas.
Empirical formulas represent the simplest component of a molecule.
Sn(NO2)4
Assuming you came upon the empirical formula by chemical analysis, the molecular formula would be a multiple of (NO2)n. The vale for n (1, 2, 3 etc) would need to be established by investigation. In this case the molecular formula is N2O4. This molecule is in equilbrium with the monomer NO2. N2O4 is the more common species at low temperatures and is the form found in the solid. NO2 is paramagnetic as it has one unpaired electron.
These two compounds has different molecular formulas.
The empirical formula for nitrogen dioxide is the same as its molecular formula - NO2. See related question below for more details on how to find empirical formulas.
NO2 and N2O4
The empirical mass of NO is 14 + 16 = 30 Divide 138 / 30 ~ = 4.5. The fact that the numbers are not whole number would suggest that the empirical formula is incorrect. However, if we use say NO2 as the empirical formula , then the empirical mass is 14 + 16 + 16 = 46 divide 138 /46 = 3 So NO2 has a formula of N3O6 . This substance does not exist, So it would suggest that the formula is 3NO2 (3/2)N2O4 . I would suggest that the original empirical formula is incorrect. and that the substance is either nitrogen dioxide (NO2) or dinitrogen tetroxide N2O4.
Empirical formulas represent the simplest component of a molecule.
Sn(NO2)4
Assuming you came upon the empirical formula by chemical analysis, the molecular formula would be a multiple of (NO2)n. The vale for n (1, 2, 3 etc) would need to be established by investigation. In this case the molecular formula is N2O4. This molecule is in equilbrium with the monomer NO2. N2O4 is the more common species at low temperatures and is the form found in the solid. NO2 is paramagnetic as it has one unpaired electron.
Both formulas are possible molecular formulas for the same empirical formula, CH2.
These two compounds has different molecular formulas.
NO2
Yes. They would just have different molecular formulas
NaSO2
Molecular formulas are used the most often, but empirical formulas do help at times. Often it's just to simplify the molecular formula, but this simplification can often tell you if it's in the same chemical family as other compounds and such.