# Urgent chem question help!!!

#1
5.00cm3 of hydrogen peroxide bleach released 74.4 cm3 of oxygen gas. Under the experimental conditions used,1 mole of the gas molecule has a volume of 24.8 dm3. Calculate how many moles of oxygen were released.

There is no conc to calculate moles
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#2
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1 year ago
#3
One mole of any gas in standard conditions has 24000 cm3 volume so one you can use the equation moles=volume/24000
Last edited by username4665096; 1 year ago
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1 year ago
#4
1 mole has a volume of 24.8 dm3
So how many moles are in 74.4 cm3

Last edited by GabiAbi84; 1 year ago
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1 year ago
#5
(Original post by 15mohsinfa)
5.00cm3 of hydrogen peroxide bleach released 74.4 cm3 of oxygen gas. Under the experimental conditions used,1 mole of the gas molecule has a volume of 24.8 dm3. Calculate how many moles of oxygen were released.

There is no conc to calculate moles
since it is in cm3
Moles = 74.4 / 24,000 = 3.1 x10^-3 moles
0
7 months ago
#6
74.4/1000= 0.0744 0.0744/24.8= 0.003
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