Question

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Answer 1

Answer:

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Explanation:

Mass of CO₂ = 8.8 grams

Molecular mass of CO₂ = 12+2× 16

= 44 u.

No of moles = Given mass/ Molecular mass

= \frac{8.8}{44}=

44

8.8

= 0.2 Moles.

No of molecules = No of moles × Avogadro's number

= 0.2 ×6.023 × 10²³

= 1.2046 × 10²³ molecules.

Answer 2

Answer:

Explanation:

2.2 the numbers of molecules will be deduced.