Question

Convert 4.92 L of hydrogen at STP to moles.

Answer 1

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$\sf C) \: 0.220 \: mol \: H_2$

Explanation:

1 mol = 22.4 litres

4.92 = how many moles?

$\sf \implies \frac{4.92}{22.4} \\ \\ \sf \implies 0.2196 \\ \\ \sf \implies 0.220 \: mol \: H_2$

Answer 2

Answer:

c. 0.220 mol H₂

Explanation:

No. of moles

• Volume present / Volume at STP
• 4.92 L / 22.4 L
• 0.220 mol H₂