A sample of carbon dioxide gas contains 3.01 × 10²³ molecules. How many moles of carbon dioxide are present in this sample?

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Question

A sample of carbon dioxide gas contains 3.01 × 10²³ molecules. How many moles of carbon dioxide are present in this sample?

Accepted Answer

0.50 mol — 50 mol. Award 1 mark for correct calculation: n = (3.01 × 10²³) ÷ (6.02 × 10²³) = 0.50 mol. A is incorrect — this results from dividing by 4 × Avogadro's constant. C is incorrect — this would require 6.02 × 10²³ molecules. D is incorrect — this results from multiplying instead of dividing.

Answer

2.00 mol

Answer

1.00 mol

Answer

0.25 mol

Answer

0.50 mol

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