The number of gram atoms of sulphur that represents 0.5 moles of sulphuric acid is:
Correct answer: C. 0.5
- A. 0.2
- B. 0.4
- C. 0.5
- D. 0.9
Explanation
The molecular formula of sulphuric acid is H2SO4. This means that there is 1 atom of sulphur in one molecule of sulphuric acid. Therefore, 0.5 mole of sulphuric acid will contain 0.5 * 1 = 0.5 gram atoms of sulphur.
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About Fundamental Concepts of Chemistry
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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