YASH CLASSES
1. The atomic mass of a metal M is 56. Calculate the
empirical formula of its oxide containing 70% metal.
2. The atomic mass of a metal M is 50. Calculate the
empirical formula of its oxide containing 50% metal.
3. The atomic mass of a metal M is 28. Calculate the
empirical formula of its oxide containing 40% metal.
4. A hydrocarbon (A) has C= 50% and vapour
density 50.
Calculate its molecular formula.
5. A hydrocarbon (A) has C= 80% and vapour
density 40.
Calculate its molecular formula.
6. A hydrocarbon (A) has C= 30% and vapour
density 55. Calculate its molecular formula.
7. An organic compound was found to contain the
following
constituents: C = 30%, H =5%
N=13% ,Cl = 34% Determine the empirical formula of the
compound.
8. 7. An organic compound was found to contain the
following
constituents: C = 35%, H =2%
N=14% ,Cl = 35% Determine the empirical formula of the
compound.
9. An organic compound was found to contain the
following
constituents: C = 24%, H =4%
N=28% ,Cl =70% Determine the empirical formula of the
compound.