Question

calculate mass 0f 1.2044×10²⁵ molecules of Carbon dioxide
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Answer 1

Your answer:

One mole of CO₂ has 6.022 × 10²³ molecules

No. of moles of CO₂ in 1.2044 × 10²⁵ molecules = $\frac{1.2044\times 10^2^5}{6.022\times10^2^3}$ = 20 moles of CO₂

One mole of CO₂ weighs 44 g => 20 moles will weigh:

20 × 44 = 880 g

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