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Use the periodic table to answer this question. How many moles of He are in 16 g of the element? 1.0 mol 8.0 mol 4.0 mol 16 mol

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Answer:

4.0 mol

Step-by-step explanation:
n = 16 g / 4.0026 g/mol ≈ 3.999 moles

so about 4.0 moles of helium in 16 grams of the element.

User Arian Motamedi
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