Number of moles present in 0.6 gram of silica is (atomic mass si=28 ,O=16)
Correct answer: A. 0.01 mole
- A. 0.01 mole
- B. 0.064 mole
- C. 0.044 mole
- D. 0.054 mole
Explanation
Silica means Silicon dioxide(SiO2), Molecular mass= 60 ● Mole= Mass / Mr = 0.6 / 60 = 0.01 mol
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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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