A sample of hydrogen gas occupies 17.5 L at STP. How many moles of the gas are present? Answer in units of mol.

asked May 23, 2021 58.2k views

1 vote

A sample of hydrogen gas occupies 17.5 L at

STP. How many moles of the gas are present?
Answer in units of mol.

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3 votes

Answer:

0.781 mol

Step-by-step explanation:

1 mol any gas under STP has volume 22.4 L.

17.5 L * 1 mol/22.4L = 0.781 mol

Muers answered May 30, 2021

by Muers

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