Question

Convert 4.92 L of hydrogen at STP to moles.

a 0.202 mol H2
b 0.444 mol H2
C 0.220 mol H2
d 4.55 mol H2

Answer 1

c. 0.220 mol H₂

Step-by-step explanation:

No. of moles

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

Answer 2

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

Step-by-step explanation:

1 mol = 22.4 litres

4.92 = how many moles?

`\sf \implies (4.92)/(22.4) \\ \\ \sf \implies 0.2196 \\ \\ \sf \implies 0.220 \: mol \: H_2`