Chemistry 130 CHM 100 Lab  |  Gas Applications  |  Introduction
This exercise will contain the determination of the molar mass of a metal by the mass of metal used and the volume of hydrogen, pressure and temperature of hydrogen generated to determine the number of moles of hydrogen, which can be related to a number of moles of metal.

The five parts to the exercise are:

  1. Setting up the apparatus to collect the hydrogen generated and measuring the mass of the metal to be used.
  2. Add the metal to the acid solution and collect the water displaced by the gas generated.
  3. Set the hydrogen pressure equal to the atmospheric pressure and measure the amount of the water collected. Measure the temperature of the water in contact with the gas to get the gases temperature.
  4. Using the gases temperature, volume and pressure calculate the number of moles of gas and relating it to the number of moles of metal. Using the mass and number of moles determine the molar mass.

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