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What would A 2.154 g sample of HgO produces 125 ml of oxygen collected over water at 24C and an atmospheric pressure of 763 mm hg calculate the STP molar volume for oxygen?
Wiki User
∙ 12y ago
According to the combined gas law, P1V1/T1 = P2V2/T2. Standard temperature is 0 degrees celcius and standard pressure 1 ATM. Convert the temperature to kelvin (giving us 273 kelvin) and pressure to ATM (1 ATM = 760 mmHg) and you can do the rest easily
Wiki User
∙ 12y ago
Wiki User
∙ 12y ago*24C=22mmHg
*763-22=741mmHg
24+273=297K
125mLO2=763mmHg/760mmHgX273K/297K=115mLO2
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