Question

calculate the number of particles in each of the following
(a) 46 g of Na atom

(b) 8 g of O2 molecules

(c) 0.1 moles of carbon atom

Plz help me out with this question​

Answer 1

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Answer 2

Answer:

a. Molar mass of sodium=23g/mol.

The given mass of sodium is 46g.

∴ The number of particles present in 46g of Na atom is 12.046×1023.

b. The given mass of oxygen is8g.

∴ The number of particles present in 8gO2 molecules atom is 1.50575×1023.

Given data contains 0.1 mole of carbon atom (number form gives moles).

c. Given data contains 0.1 mole of carbon atom (number form gives moles).

We have to calculate the number of particles in 0.1 mole of carbon atom (number form gives moles).

∴ The number of particles present in 0.1 mole of carbon atom is 6.023×1022.

hope it helps u dear