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प्रश्न
Fill in the following blanks :
1 mole contains .............. atoms, molecules or ions of a substance.
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उत्तर
1 mole contains 6.022 × 1023 atoms, molecules or ions of a substance.
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संबंधित प्रश्न
What does 2H2S represent ?
Write the molecular formulae of Nitric acide :
Write the molecular formulae of Calcium phosphate :
In hydrogen peroxide (H2O2), the proportion of hydrogen and oxygen by mass is :
How many units of charge are developed on each atom?
‘Atoms of the same element or different from Dalton’s atomic theory by the Modern Atomic Theory.
Give two examples each of –
- Atoms of the same element
- Atoms of different elements combining to form a molecule.
State the correct formula of the following from the option given:
Aluminium phosphate
State the correct formula of the following from the option given:
Copper [II] nitrate
Name the following:
A molecule of a compound containing two oxygen atoms and one nitrogen atom.
Express each of the following in kilograms
5.873×10−21g
