A student records the following data in the laboratory when determining the percentage of water in an unknown hydrate. Mass of container Mass of container and hydrate Mass of container and contents after: Pirst heating 47.952 % 49.837 % 49.500 % Second heating Third heating a. What is the percentage of water in this student's unknown? b. Based on the values obtained in the three heating's above, do you think the student should have confidence in his results? Why? What do you think he should do to be more confident in his result? 48.918 g 48.811 g
A student records the following data in the laboratory when determining the percentage of water in an unknown hydrate. Mass of container Mass of container and hydrate Mass of container and contents after: Pirst heating 47.952 % 49.837 % 49.500 % Second heating Third heating a. What is the percentage of water in this student's unknown? b. Based on the values obtained in the three heating's above, do you think the student should have confidence in his results? Why? What do you think he should do to be more confident in his result? 48.918 g 48.811 g
ChapterU5: Fire: Energy , Thermodynamics, And Oxidation-reduction
Section: Chapter Questions
Problem 4STP
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