Advertisements
Advertisements
Question
If 16 g of oxygen contains 1 mole of oxygen atoms, calculate the mass of one atom of oxygen.
Advertisements
Solution
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
RELATED QUESTIONS
If the aluminium salt of an anion X is Al2X3, what is the valency of X ? What will be the formula of the magnesium salt of X ?
What weight of each element is present in 1.5 moles of sodium sulphite, Na2SO3 ?
(Atomic masses : Na = 23 u ; S = 32 u ; O = 16 u)
Prove the Following :
One mole of any gas contains th e same number of molecules.
Which of the following would weight the least?
[Atomic masses : Ag = 108, N - 14, O = 16,C = 12]
The molecular formula for elemental sulphur is S8. In a sample of 5.12 g of sulphur:
How many moles of sulphur are present?
If phosphorus is considered to contain P4 molecules, then calculate the number of moles in 100g of phosphorus?
Cost of Sugar (C12H22 O11) is Rs 40 per kg; calculate its cost per mole.
Calculate the number of gram atoms in 4.6 gram of sodium.
One mole of any gas occupies ______ ml at S.T.P.
The number of atoms present in 0.1 mole of P4 (at. mass = 31) is ______.
