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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
Calculate the molar mass of the following substance:
Ethyne, C2H2
Choose the correct answer from the options given below:
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[Given that H = 1, O = 16]
Explain the term:
Gram mole
Calculate the number of moles of CO2 which contain 8.00 g of O2
Calculate the number of moles of methane in 0.80 g of methane.
The number of molecules in 4.25 g of ammonia is ______.
Correct the statement, if required.
One mole of chlorine contains 6.023 x 1010 atoms of chlorine.
Solid ammonium dichromate decomposes as under:
\[\ce{(NH4)2Cr2O7 -> N2 + Cr2O3 + 4H2O}\]
If 63 g of ammonium dichromate decomposes. Calculate;
- the quantity in moles of (NH4)2Cr2O7
- the quantity in moles of nitrogen formed
- the quantity in moles of nitrogen formed
- the loss of mass
- the mass of chromium (III) oxide formed at the same time.
One mole of any gas occupies ______ ml at S.T.P.
Compute the difference in masses of 103 moles each of magnesium atoms and magnesium ions.
(Mass of an electron = 9.1×10–31 kg)
