Advertisements
Advertisements
प्रश्न
If 16 g of oxygen contains 1 mole of oxygen atoms, calculate the mass of one atom of oxygen.
Advertisements
उत्तर
Given:
Mass of 1 mole of oxygen = 16g
We know that 1 mole of oxygen contains 6.022 × 1023 oxygen atoms.
Mass of 6.022 × 1023 oxygen atoms = 16g
Mass of 1 oxygen atom = 16/6.022 × 1023
Hence, 1 atom of oxygen molecule weighs 2.65 × 10-23 grams.
APPEARS IN
संबंधित प्रश्न
If one mole of carbon atoms weighs 12 gram, what is the mass (in gram) of 1 atom of carbon?
What is the mass of 4 moles of aluminium atoms (Atomic mass of aluminium = 27)?
How many atoms are there in 0.25 mole of hydrogen ?
Show by means of calculations that 5 moles of CO2 and 5 moles of H2O do not have the same mass. How much is the difference in their masses ?
The relative atomic mass of Cl atom is 35.5 a.m.u. Explain this statement.
Define the term:
Relative molecular mass
How many grams of CO2 is present in 0.1 mole of it?
If phosphorus is considered to contain P4 molecules, then calculate the number of moles in 100g of phosphorus?
Correct the statement, if required.
Under the same conditions of temperature and pressure, equal volumes of all gases contain the same number of atoms.
If 0.2 mol of the following substance is required how many grams of that substance should be taken?
magnesium oxide
