Data Trial 1 Trial 2
Mass of empty crucible with lid 26.687 26.691
Mass of Mg metal, cru...
Chemistry, 21.05.2020 19:03 bgallman153p71edg
Data Trial 1 Trial 2
Mass of empty crucible with lid 26.687 26.691
Mass of Mg metal, crucible, and lid 27.006 27.050
Mass of MgO, crucible, and lid 27.208 27.277
Calculations:
Show your calculations for each of the following. Remember, calculations should follow rules for significant figures.
1. Write the balanced chemical equation for the reaction you are performing.
2. Subtract the mass of the crucible and lid (row 1 in the chart) from the total mass of Mg, crucible, and lid (row 2 in the chart) to find the mass of magnesium for each trial.
3. Subtract the mass of the crucible and lid (row 1 in the chart) from the total mass of MgO, crucible, and lid (row 3 in the chart) to find the mass of magnesium oxide for each trial. This is the actual yield of magnesium oxide for each trial.
4. Magnesium is the limiting reactant in this experiment. Calculate the theoretical yield of MgO for each trial.
5. Determine the percent yield of MgO for your experiment for each trial.
6. Determine the average percent yield of MgO for the two trials.
Answers: 2
Chemistry, 22.06.2019 04:00
Which of the following ocean acidification? are the most likely side effects of a ph less than 7.0 in the ocean b. more metal salts altering the ocean chemistry c. dissolution of the shells of marine organisms d. both a & b e. all of the above.
Answers: 3
Chemistry, 22.06.2019 10:10
For the reaction, 4 a(g) + 3 b(g) => 2 c(g), the following data were obtained at constant temperature. experiment initial[a],mol/l initial [b],mol/l initial rate,m/min 1 0.200 0.150 5.00 2 0.400 0.150 10.0 3 0.200 0.300 10.0 4 0.400 0.300 20.0 which of the following is the correct rate law for the reaction? 1. rate = k[a]2[b]2 2. rate = k[a][b] 3. rate = k[a]2[b] 4. rate = k[a][b]2
Answers: 3
Chemistry, 22.06.2019 16:00
How will the volume of a gas be affected if the pressure is tripled, but the temperature remains the same?
Answers: 3
Chemistry, 23.06.2019 03:00
Give a real-world example of an energy transformation that uses two of the following forms of energy: chemical, mechanical, nuclear, gravitational, radiant, electrical, thermal (heat), and/or sound.
Answers: 3
Computers and Technology, 18.02.2022 14:00
Biology, 18.02.2022 14:00
Biology, 18.02.2022 14:00
Biology, 18.02.2022 14:00
Mathematics, 18.02.2022 14:00
Chemistry, 18.02.2022 14:00
Mathematics, 18.02.2022 14:00
English, 18.02.2022 14:00
Mathematics, 18.02.2022 14:00
English, 18.02.2022 14:00