Question

How many gram atoms of oxygen are present in 32 moles of Sulphur dioxide ?
How many moles of chlorine are present in 20 moles of Magnesium Chloride ?

Answer 1

Answer:

1) 32gm of o2

Explanation:

Atomic mass of sulphur is 32g(mol)

−1

. Therefore, number of moles of sulphur is 1 and it contains 6.022×10

23

atoms i.e avogadro's number. et number of sulphur atoms be x. Therefore, in 32g of oxygen it contains 2 moles as atomic mass of oxygen is 16g(mol)

−1

and hence it will contain 2×6.022×10

23

atoms i.e 2x

Answer 2

Answer:

Question :-

How many gram atoms of oxygen are present in 32 moles of Sulphur

dioxide?

Answer :-

One mole of SO₂ = 2 gram-atoms of oxygen

32 moles of SO₂ = ?

32 moles of SO₂ = 32 × 2

64 gram-atoms of oxygen.

Question :-

How many moles of chlorine are present in 20 moles of Magnesium Chloride?

Answer :-

One mole of MgCl₂ = 2 moles of Chlorine

20 moles of MgCl₂ = ?

20 moles of MgCl₂ = 20 × 2

40 moles of Chlorine.