Students were tasked to perform the ideal gas experiment with some modifications. Instead of magnesium ribbon, the students were to use 0.029 g of aluminum foil. They prepared the eudiometer by adding 6M HCl and filling it with water to the brim. Once the setup was complete, they performed the experiment. Note that the aluminum was completely consumed in the reaction. From the experiment, it was found that the external pressure was 1.05 atm at 30.0 °C, and the volume of the air inside the eudiometer was 33.5 mL. The water level inside the eudiometer is 4.15 cm below the surface of the water level outside. Given these measurements and the following constants, answer the proceeding questions. ● At 30.0 °C, Pvapor = 31.8 mmHg ● R = 0.08206 L-atm/mol-K = 62.36 L-torr/mol-K
Students were tasked to perform the ideal gas experiment
with some modifications. Instead of magnesium ribbon, the students were to use
0.029 g of aluminum foil. They prepared the eudiometer by adding 6M HCl and
filling it with water to the brim. Once the setup was complete, they performed the
experiment. Note that the aluminum was completely consumed in the reaction.
From the experiment, it was found that the external pressure was 1.05 atm at
30.0 °C, and the volume of the air inside the eudiometer was 33.5 mL. The water
level inside the eudiometer is 4.15 cm below the surface of the water level
outside. Given these measurements and the following constants, answer the
proceeding questions.
● At 30.0 °C, Pvapor = 31.8 mmHg
● R = 0.08206 L-atm/mol-K = 62.36 L-torr/mol-K
● MWAl = 26.98 g/mol
A. Find the value of the pressure of dry air (PDA) in torr .
B. Give the balanced
C. Find the experimental mass of aluminum consumed in the reaction.
D. Find the % error of the mass of aluminum from the experiment
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