Test Tube #2: Unknown sample (KCLO3 + KCL) 1. Determine the weight of unknown heated. 2. Determine the weight of oxygen gas released using the constant weight obtained after completion of the heating's. 3. Determine the number of oxygen gas (0₂) lost? 4. Using stoichiometry, use the number of O₂ gas released to determine the moles of KCLO decomposed, 5. Determine the number of grams of KCLO, decomposed. 6. Based on the number of grams of KCLO, decomposed and the total amount of unknown placed in the test tube, determine the percent KCLO, present within the unknown.
Test Tube #2: Unknown sample (KCLO3 + KCL) 1. Determine the weight of unknown heated. 2. Determine the weight of oxygen gas released using the constant weight obtained after completion of the heating's. 3. Determine the number of oxygen gas (0₂) lost? 4. Using stoichiometry, use the number of O₂ gas released to determine the moles of KCLO decomposed, 5. Determine the number of grams of KCLO, decomposed. 6. Based on the number of grams of KCLO, decomposed and the total amount of unknown placed in the test tube, determine the percent KCLO, present within the unknown.
Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter10: Fuels, Organic Chemicals, And Polymers
Section10.2: U. S/ Energy Sources And Consumption
Problem 10.4E
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Question
![Test Tube #2: Unknown sample (KCLO3 + KCL)
1. Determine the weight of unknown heated.
2. Determine the weight of oxygen gas released using the constant weight obtained after
completion of the heating's.
3. Determine the number of oxygen gas (0₂) lost?
4. Using stoichiometry, use the number of O₂ gas released to determine the moles of KCLO 3
decomposed,
5. Determine the number of grams of KCLO, decomposed.
6. Based on the number of grams of KCLO, decomposed and the total amount of unknown
placed in the test tube, determine the percent KCLO3 present within the unknown.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F41935391-9541-47c4-a0ab-7fda83386b99%2F5c489bed-6337-4e1e-b806-10954175c979%2F6qw0khl_processed.png&w=3840&q=75)
Transcribed Image Text:Test Tube #2: Unknown sample (KCLO3 + KCL)
1. Determine the weight of unknown heated.
2. Determine the weight of oxygen gas released using the constant weight obtained after
completion of the heating's.
3. Determine the number of oxygen gas (0₂) lost?
4. Using stoichiometry, use the number of O₂ gas released to determine the moles of KCLO 3
decomposed,
5. Determine the number of grams of KCLO, decomposed.
6. Based on the number of grams of KCLO, decomposed and the total amount of unknown
placed in the test tube, determine the percent KCLO3 present within the unknown.
![Data Table 2: Unknown Sample #
16
(Test Tube #2)
Mass (g) Difference (g)
Weight of test tube + MnO₂
45.408g
Weight of test tube + MnO₂ + Unknown 46.466g
Weight after 1st heating
46.183g
46.083g 0.1g
Weight after 2nd heating
Weight after 3rd heating
Constant weight
46.080 0.003g
46.115g](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F41935391-9541-47c4-a0ab-7fda83386b99%2F5c489bed-6337-4e1e-b806-10954175c979%2F89l0jo8_processed.png&w=3840&q=75)
Transcribed Image Text:Data Table 2: Unknown Sample #
16
(Test Tube #2)
Mass (g) Difference (g)
Weight of test tube + MnO₂
45.408g
Weight of test tube + MnO₂ + Unknown 46.466g
Weight after 1st heating
46.183g
46.083g 0.1g
Weight after 2nd heating
Weight after 3rd heating
Constant weight
46.080 0.003g
46.115g
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