The molecular formula of Sucrose(Sugar) is___________?
Correct answer: B. C12H22O11
- A. NH3
- B. C12H22O11
- C. C6H12O6
- D. C6H6
Explanation
Sucrose is a disaccharide formed from glucose and fructose, with the molecular formula C12H22O11 after loss of water during condensation. C6H12O6 is the formula of glucose or fructose, which are monosaccharides. The likely mistake is selecting C6H12O6 because glucose is also a sugar.
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About Moles and Avogadro's Number
The mole connects the microscopic number of particles with measurable mass, using Avogadro's number, 6.022 × 10²³ particles per mole. Questions involve molar mass, conversion between mass, moles and particles, percentage composition, empirical and molecular formulas, and distinguishing atoms, molecules, ions and formula units.
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