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2. Which is the ideal gas equation?

  • Pv=nRT
  • Vp=nRT
  • P+V=nRT
  • nR=TPv

3. Calculate atom economy of TiO2: TiCl4+2H2O-->TiO2+4HCl

  • 35.3%
  • 76.4%
  • 55.9%
  • 100%

4. What is meant by empirical formula?

  • Simplest ratio of the amount of elements in a compound
  • Actual number of molecules in a compound
  • Average mass of an element relative to Carbon 12

5. Calculate the mass: 0.075moles of Fe2O3

  • 5g
  • 11.97g
  • 22.3g
  • 18g
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