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AlexFokin [52]
3 years ago
12

PLEASE ANSWER + BRAINLIEST !!!

Chemistry
1 answer:
Sunny_sXe [5.5K]3 years ago
3 0
Hope this would help you

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To go from molecules to moles divide by Avogadro's number [<span>6.02x10^23]</span>
Example:
1.50x10^23 divided by 6.02x10^23 = 0.249 moles rounded to three significant figures
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How many molecules are there in 4.00 l of oxygen gas at 500.∘ c and 50.0 torr?
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From  the  ideal  gas law   
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T=500+273=773k
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the  number  of  molecules=moles  x avorgadro costant that is  6.022x10^23)
6.022 x 10^23)  x0.041=2.469 x10^22molecules
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