Question

how many atoms of sulphur and oxygen are present in 0.3 mol of 50 g?​

Answer 1

Answer:

Answer Expert Verified

The number of atoms in S₈ : 6.02 × 10²³ × 0.25 = 1.505 × 10²³ atoms.

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Answer 2

Answer:

Chapter 3. Stoichiometry: Mole-Mass Relationships in

Chemical Reactions

1

• The mole (or mol) represents a certain number of objects.

• SI def.: the amount of a substance that contains the same

number of entities as there are atoms in 12 g of carbon-12.

• Exactly 12 g of carbon-12 contains 6.022 x 10 23 atoms.

• One mole of H 2O molecules

contains 6.022 x 10 23 molecules.

• 1 mole contains 6.022 x 10 23 entities (Avogadro’s number)

Concept 1. The meaning and usefulness of the mole