Calculate Gas Vol at S.T.P. from 750.0 mmHg, 85.0°C

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SUMMARY

The discussion focuses on calculating the volume of gas collected at Standard Temperature and Pressure (S.T.P.) from a gas collecting tube with an initial volume of 200.0 ml and a final volume of 125.0 ml, under a pressure of 750.0 mmHg and a temperature of 85.0°C. The Ideal Gas Law, represented by the equation PV/T = constant, is the primary tool recommended for this calculation. Participants confirm that applying this equation will yield the corrected volume of gas at S.T.P.

PREREQUISITES
  • Understanding of the Ideal Gas Law (PV = nRT)
  • Knowledge of Standard Temperature and Pressure (0°C and 1 atm)
  • Familiarity with unit conversions (mmHg to atm, Celsius to Kelvin)
  • Basic principles of gas collection techniques
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  • Study the Ideal Gas Law in detail, including its applications
  • Research methods for correcting gas volumes to S.T.P.
  • Explore the concept of gas collection over water and its implications
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Chemistry students, laboratory technicians, and anyone involved in gas measurement and calculations in experimental settings.

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A gas collecting tube full of water is inverted in a beaker of water in which a reaction is taking place. The water level in the tube is at 200.0 ml at the beginning of the experiment, and at 125.0 ml, at the end. the pressures is 750.0 mm Hg and the temperature is 85.0 Celsius. Calculate the volume of a gas collected corrected to S.T.P..

This is an review from last year and I can't exactly remember how to solve this.
 
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Ideal gas equation will do. Or PV/T = const.
 

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