Procedural Changes Quiz

length of Mg needed = measured length × 0.0868g measured mass

Measuring temperature: T1 (ºC) (start of experiment) T2 (ºC) (end of experiment) T (ºC) average temperature Trial 1 Trial 2 CHEM 121 LAB REPORT Data: Trial 1 Trial 2 Trial 3 Mass of Mg (g) Number of moles of H2 (mol) Final eudiometer reading (mL) Initial eudiometer reading (mL) Volume of gas (mL) Barometric pressure (mmHg) Difference in levels (mm solution) Difference in levels (mmHg) Vapor pressure of water (mmHg) Corrected H2 pressure (mmHg) Temperature (°C) R (L atm K-1 mol-1 ) Average R (L atm K-1 mol-1 ) Percent error (%) *Values in bold must be recorded during the experiment.

Corrected H2 pressure (mmHg)

<p>Volume of gas (mL) = Final eudiometer reading (mL) - Initial eudiometer reading (mL)</p> Signup and view all the answers

<p>Average R (L atm K-1 mol-1 )</p> Signup and view all the answers