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Calculate the number of molecules/m3 in an ideal gas at stp.

Melissa Norris

in Physics

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Ralph Lopez on March 11, 2018

STP (Standard Temperature and Pressure) has the following conditions:Temperature = 273.15 K = 0°CPressure = 101325 Pa = 101.325 KPa = 1 atmWe we also know that 1 mol = 6.022x10^23 moleculesUsing the ideal gas equation: PV=nRTn/V = P/RTmolecules/V = P*6.022x10^23/RTmolecules/V = 101325 Pa (6.022x10^23 molecules/mol)/ (8.314 Pa m3/mol-K)(273.15 K)the molecules in/V = 7.339x10^27 molecules/m^3 - Final answer


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