Advertisements
Advertisements
प्रश्न
Calculate the number of atoms in the following:
52 g of He
Advertisements
उत्तर
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
संबंधित प्रश्न
Calculate the molar mass of the following substance:
Phosphorus molecule, P4 (atomic mass of phosphorus = 31)
Define the term.
Molar volume
Explain the term:
Mole
Which of the following would weight the least?
[Atomic masses : Ag = 108, N - 14, O = 16,C = 12]
Find the number of moles in 10 g of CaCO3.
Calculate the number of moles of CO2 which contain 8.00 g of O2
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.
What is Molar volume of a gas?
Calculate the number of moles of magnesium present in a magnesium ribbon weighing 12 g. Molar atomic mass of magnesium is 24g mol–1.
Raunak took 5 moles of carbon atoms in a container and Krish also took 5 moles of sodium atoms in another container of same weight.
- Whose container is heavier?
- Whose container has more number of atoms?
