Question

how many atoms in 2 kg of calcium? ​

Answer 1

0.04kg Ca has 1moles of atom

1 kg of atom has = 1/0.04 mole = 25 moles

2 kg of atoms will have = 25×2 = 50moles of atom

= 50 × 6.022 ×10²³atoms

301.1×10²³ = 3.011 × 10²⁵atoms

Explanation:

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