Multiple Choice
Which of the following statements about the molecular weight of a molecule is true?
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3. Chemical Reactions
Molecular Formula
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Which of the following is the correct molecular formula for glucose?
A
C5H10O5
B
C12H22O11
C
C6H6O6
D
C6H12O6
Verified step by step guidance1
Understand that the molecular formula represents the exact number of atoms of each element in a molecule.
Recall that glucose is a simple sugar (monosaccharide) commonly known to have 6 carbon atoms, 12 hydrogen atoms, and 6 oxygen atoms.
Compare the given options to the known molecular formula of glucose, which is \(C6H12O6\).
Eliminate options that do not match the typical carbon, hydrogen, and oxygen count for glucose: \(C5H10O5\) (a different sugar), \(C12H22O11\) (a disaccharide like sucrose), and \(C6H6O6\) (incorrect hydrogen count).
Confirm that the correct molecular formula for glucose is \(C6H12O6\) because it matches the known composition of glucose.
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