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प्रश्न
Fill in the blank
Avogadro's number is equal to ______
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उत्तर
Avogadro's number is equal to 6.023 x 1023
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संबंधित प्रश्न
Fill in the following blanks :
64 g of oxygen gas contains ................ moles of oxygen atoms.
How many moles of calcium carbonate (CaCO3) are present in 10 g of the substance ? (Ca = 40 u ; C = 12 u ; O = 16 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
What is the value of molar volume of a gas at S.T.P?
A student puts his signature with a graphite pencil. If the mass of carbon in the signature is 10-12 g, calculate the number of carbon atoms in the signature.
One mole of any gas occupies ______ ml at S.T.P.
Calculate the number of moles of magnesium present in a magnesium ribbon weighing 12 g. Molar atomic mass of magnesium is 24g mol–1.
The visible universe is estimated to contain 1022 stars. How many moles of stars are present in the visible universe?
Compute the difference in masses of 103 moles each of magnesium atoms and magnesium ions.
(Mass of an electron = 9.1×10–31 kg)
If 0.2 mol of the following substance is required how many grams of that substance should be taken?
Calcium carbonate
