Advertisements
Advertisements
Question
How many moles of O2 are there in 1.20 × 1022 oxygen molecules ?
Advertisements
Solution
1.20 × 1022 molecules of oxygen
One mole of oxygen contains 6.022 × 1023 molecules.
1.20 × 1022 molecules of oxygen contain = 1.20 × 1022 / 6.022 × 1023 = 0.01099 moles.
Hence, 1.20 × 1022 molecules of oxygen contain 0.0199 moles of oxygen.
APPEARS IN
RELATED QUESTIONS
Convert into mole.
12 g of oxygen gas
If 16 g of oxygen contains 1 mole of oxygen atoms, calculate the mass of one atom of oxygen.
What is meant by ‘a mole of carbon atoms’ ?
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
Explain the term:
Gram mole
Define the term:
Relative molecular mass
Define the term:
Gram atom
What mass of Ca will contain the same number of atoms as are present in 3.2 g of S?
Calculate the number of atoms in the following:
52 moles of He
Deduce the number of molecules of the following compound in the given quantity.
7.1 g chlorine
