Is my PV=nRT question correct?
'mixture of hydrogen and oxygen at 101000 Pa and 0 degrees C occupies 200cm^3, What are total number of moles?

Question

Is my PV=nRT question correct?
'mixture of hydrogen and oxygen at 101000 Pa and 0 degrees C occupies 200cm^3, What are total number of moles?

anonymous · Answer

I did n = PV/RT  ,  101000 * (200cm^3 goes to 0.0002m^3) = 20.2
Then 8.314 * 273.15 = 2270.961
So 20.2 / 2270.961 = 0.008894mol   ,  should this be in KJMol and * by 1000?

unklerhaukus · Answer

the units for the gas constant are joules per mole per kelvin

    $R=8.314 [\text J\, \text{mol}^{-1}\,\text K^{-1}]$

unklerhaukus · Answer

the unit for the pressure was pascals?  $[\text{Pa}]=[\text N/\text m^2]$

unklerhaukus · Answer

a newton equals a joule / meter    $[\text N]=\,[\text J/\text m]$

anonymous · Answer

But is the answer correct however?

chmvijay · Answer

what ?

anonymous · Answer

0.008894mol ?

chmvijay · Answer

ur right :)

anonymous · Answer

Thanks, and the untis for the final answer? The conversion between cm^3 and m^3 ?

chmvijay · Answer

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