Jessica is doing her pre-lab homework for Chemistry. She is asked to predict how many grams of oxygen gas are produced if 40.0 g of potassium chlorate is decomposed according to this balanced chemical equation shown. 2KCIO3(s)→2KCI(s)+302(g) She performs the following calculation, and gets 15.7 g of O2 as her answer. g KCIO, mol KCIO3 mol 02 g O2 1 mol KC103 122.55 g KC1O3 3 mol 02 2 mol KC103 32.00 g 02 1 тol 0z The next day when her group performs the experiment they obtain an actual yield of 15.3 grams of oxygen gas. What is the percent yield for the experiment? 'report your answer to the tenths place, i.e. one decimal place.
Jessica is doing her pre-lab homework for Chemistry. She is asked to predict how many grams of oxygen gas are produced if 40.0 g of potassium chlorate is decomposed according to this balanced chemical equation shown. 2KCIO3(s)→2KCI(s)+302(g) She performs the following calculation, and gets 15.7 g of O2 as her answer. g KCIO, mol KCIO3 mol 02 g O2 1 mol KC103 122.55 g KC1O3 3 mol 02 2 mol KC103 32.00 g 02 1 тol 0z The next day when her group performs the experiment they obtain an actual yield of 15.3 grams of oxygen gas. What is the percent yield for the experiment? 'report your answer to the tenths place, i.e. one decimal place.
Chemistry: Principles and Reactions
8th Edition
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:William L. Masterton, Cecile N. Hurley
Chapter3: Mass Relations In Chemistry; Stoichiometry
Section: Chapter Questions
Problem 67QAP: When potassium chlorate is subjected to high temperatures, it decomposes into potassium chloride and...
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Transcribed Image Text:Jessica is doing her pre-lab homework for
Chemistry. She is asked to predict how many grams
of oxygen gas are produced if 40.0 g of potassium
chlorate is decomposed according to this balanced
chemical equation shown.
2KCIO3(s)→2KCI(s)+3O2(g)
She performs the following calculation, and gets
15.7 g of O2 as her answer.
8 KCIO,
mol KCIO;
mol O2
g O2
1 mol KC103
122.55 g KClo3
3 mol 02
32.00 g 02
1 mol 02
2 mol KC1O3
The next day when her group performs the
experiment they obtain an actual yield of 15.3 grams
of oxygen gas. What is the percent yield for the
experiment?
'report your answer to the tenths place, i.e. one decimal
place.
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