Advertisements
Advertisements
Question
Calculate the number of atoms in the following:
52 g of He
Advertisements
Solution
4 g of He has atoms = 6.02 x 1023
∴ 52 g of He has atoms = `(6.02 xx 10^23 xx 52)/4`
= 78.26 x 1023
= 7.82 x 1024
RELATED QUESTIONS
Convert into mole.
22 g of carbon dioxide
What is the mass of 0.5 mole of water molecules?
What is the mass of 0.2 mole of oxygen atoms ?
Fill in the following blanks :
60 g of carbon element are .............. moles of carbon atoms.
How many atoms are there in 0.25 mole of hydrogen ?
Calculate the mass of 0.1 mole of carbon dioxide.
[Atomic mass: S = 32, C = 12 and O = 16 and Avogadro's number = 6 × 1023]
Define the term:
Gram atom
Correct the statement, if required.
Under the same conditions of temperature and pressure, equal volumes of all gases contain the same number of atoms.
Calculate the number of oxygen atoms in 0.10 mole of Na2CO3 . 10H2O.
Calculate the number of gram atoms in 4.6 gram of sodium.
