Chapter 1

Chapter # 1

1. What is molecular ion and how it is formed?

2. What is function of ionization chamber in mass spectrometery?

3. Calculate the number of molecules in 10 g of ice?

4. Write method for separation of isotopes?

5. Define molar volume with example?

6. What are mono isotopic element?

7. Write steps to determined limiting reactant?

8. Write importance of combustion analysis?

9. Calculate mass in grams of 2.74 moles of KMnO₄?

10. Write down the steps required to find the empirical formula of compound?

11. How can the efficiency of a chemical reaction be expressed?

12. Define gram atom give its example?

13. Why atom cannot be observed by ordinary optical microscope?

14. Give two stoichiometric assumptions?

15. Define term atomicity give its example?

16. Calculate mass in gram of 10-3 mole of water?

17. Why actual yield is less than theoretical yield?

18. What are isotopes how relative atomic mass of isotpes are determined?

19. What is the function of electrometer in the mass spectrometery?