Generating Hydrogen Gas Lab                Adnan Masood

3/12/2009                Partners: James, Mishal

Purpose:

-To find the molar volume at STP of hydrogen gas when HCl is reacted with magnesium.

-To experimentally calculate molar mass of zinc using the ideal gas laws.

Data Collection:

         

  • For the mass, an uncertainty of0.01g was used, as the uncertainty was stated on the weighing machine.
  • For the volume, an uncertainty of0.05mL was used, as it was half the smallest increment on the graduated cylinder.
  • For the temperature, an uncertainty of0.5 was used, as it was half the smallest increment on the thermometer.
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Sample Calculation

Converting mL to L               

Data Processing:

Magnesium+HCl Reaction

-Finding the molar volume at STP of hydrogen gas when HCl is reacted with magnesium.

Finding Pressure of

                  (Pressure of H2O at 21=0.02763)

Finding Volume of  at STP

0.002

Sample Calculation

Finding Uncertainty for  

Finding moles of

Moles of

Finding Molar Volume of  at STP.

Zinc+HCl ...

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