Chemistry Fill in the blanks Set 22
1. One mole of a triatomic gas contains 3×6.023×10^23 atoms.
2. One mole of Sulphuric acid contains 4×6.023×10^23 Oxygen atoms.
3. 11.2 L of carbon dioxide at S.T.P contains 6.023×10^23 oxygen atoms.
4. Equal volumes of different gases under similar conditions of temperature and pressure contain equal number of molecules
5. A decimolar solution of NaOH contains 4g of NaOH per litre of the solution.
6. 7 g of CO contains 1.505×10^23 O atoms.
7. The mass of 1 x 10^22 formula units of CuSO4 5H2O is 4.142g
8.Mendeleev’s periodic law states that the properties of the elements are the periodic functions of the atomic mass
9. The Modern periodic law states that the physical and chemical properties of the elements are periodic functions of their atomic number
10. The long form of the periodic table is constructed on the basis of repeating electronic configuration of the atoms when they are arranged in the order of increasing atomic numbers.
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