Respuesta :
C6H12O6 is the molecular formula for 6-carbon monosaccharides, such as glucose, fructose, and galactose , is the molecular formula of this sugar .
What is molecular formula ?
A molecular formula indicates the type and number of atoms of each element present in a molecular compound. In many cases the molecular formula is the same as the molecular formula. The molecular formula for methane is CH4, and since it contains only one carbon atom, so is the molecular formula. However, sometimes the molecular formula is a simple integer multiple of the molecular formula. Acetic acid is an organic acid . Its molecular formula is C2H4O2. Glucose is a simple sugar that cells use as their primary source of energy. Its molecular formula is C6H12O6. The structures of both molecules are shown. Although they are very different compounds, they both have the same molecular formula CH2O.
We first need to find the empirical formula, which represents the smallest whole number ratio of elements in the compound. After we determine the empirical formula, we determine the empirical molar mass.
If the empirical molar mass is the same as the molecular molar mass, then the empirical formula is also the molecular formula.
If the empirical molar mass is not the same as the molecular molar mass, we divide the molecular molar mass by the empirical molar mass, which will give us the factor to multiply by the subscripts in the empirical formula. This will give the molecular formula.
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