Question 4 (1 point)
A balloon had 2 moles of helium at 25 degrees Celsius pumped into it. It e...
Chemistry, 05.05.2020 05:24 Falconpride847
Question 4 (1 point)
A balloon had 2 moles of helium at 25 degrees Celsius pumped into it. It expanded to a volume of 5 L. Overnight, some helium gas leaked out
and its volume shrank to 2.8 L. How many moles of air did it lose overnight? Hint: answer must be how many moles were lost so must found
out how many moles it still contained!
Oa
Ob
0.88 mol
0.36 mol
1.1 mol
1.8 mol
с
Answers: 2
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