Question

Calculate the number of Cl2 molecules and Cl atoms in 0.25 mol of Cl2 gas.​

Answer 1

Answer:

2.9×10 ^-19

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Explanation:

Answer 2

Answer:

• Number of Cl₂ molecules =  3.011 ×  10²³ molecules.
• Number of Cl atoms = 1.5055 ×  10²³

Explanation:

Given,

Number of moles of Cl₂ = 0.25

To find:

Number of Cl₂ molecules

Number of Cl atoms

Solution:

Nₐ = 6.022 × 10²³

Number of Cl₂ molecules = Number of moles of Cl₂ × Nₐ

                                         = 0.25 ×  6.022 × 10²³

                                         = 1.5055 ×  10²³ molecules

1 molecule of Cl₂ = 2 × Cl

1.5055 ×  10²³ molecules of Cl₂ =  1.5055 ×  10²³ × 2

                                                    = 3.011 ×  10²³ molecules.

Answer:

• Number of Cl₂ molecules =  3.011 ×  10²³ molecules.
• Number of Cl atoms = 1.5055 ×  10²³

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