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प्रश्न
Define the term:
Avogadro’s number
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उत्तर
Avogadro’s number is defined as the number of atoms present in 12g of 6C12 isotope i.e. 6.023 × 1023 atoms.
संबंधित प्रश्न
Convert into mole.
12 g of oxygen gas
How many moles of calcium carbonate (CaCO3) are present in 10 g of the substance ? (Ca = 40 u ; C = 12 u ; O = 16 u)
How many moles are represented by 100 g of glucose, C6H12O6 ? (C = 12 u, H = 1 u, O = 16 u)
Calculate the mole ratio of 240 g of calcium and 240 g of magnesium. (Ca = 40 u ; Mg = 24 u)
Which of the following correctly represents 360 g of water ?
- 2 moles of H2O
- 20 moles of water
- 6.022 × 1023 molecules of water
- 1.2044 × 1025 molecules of water
Define the term Relative atomic mass.
Which of the following would weight the least?
[Atomic masses : Ag = 108, N - 14, O = 16,C = 12]
What is the value of molar volume of a gas at S.T.P?
Correct the statement, if required.
One mole of chlorine contains 6.023 x 1010 atoms of chlorine.
Fill in the missing data in the Table
| Species Property | H2O | CO2 | Na atom | MgCl2 |
| No. of moles | 2 | - | - | 0.5 |
| No. of particles | - | 3.011×1023 | - | - |
| Mass | 36g | - | 115 g | - |
