The empirical formula and molecular mass of a compound are CH2O and 180gram respectively the molecular formula of the compound is
Correct answer: C. C6H12O6
- A. C9H18O9
- B. CH2O
- C. C6H12O6
- D. C2H4O2
Explanation
E.F: CH2O=> Empirical formula mass= (1x12)+(2x1)+(1x16) = 30=> n= Molecular Mass/E.F.Mass =180/30= 6=> Molecular formula= n x E.F = 6 x (CH2O) = C6H12O6
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Mole calculations connect mass, number of particles and Avogadro's number, while balanced equations provide the mole ratios used in stoichiometry. Questions cover limiting and excess reactants, theoretical yield and percentage yield, including identifying which reactant is consumed first and comparing the actual product with the maximum possible product.
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