NAMES: SECTION: Trial #1 Trial #2 1. Mass of the filter paper,g 0833 0862 Mass of filter paper and precipitate, g 4.531 4.564 2. Chemical equation: Al(NO;)3(ag) NaOH(a) -> 3. N° moles AI(NO3)3(aq), mol 4. N° moles NaOHag), mol 5. Limiting reactant 6. Reactant in excess 7. Theoretical yield 8. Percent yield Thinking critically: 1) Explain how it is possible to start with equal volumes and equal concentrations of both reactants, and end up with one of them being used up, and the other being in excess. 2) Is the percent yield supposed to be 100%? What could explain the discrepancy?
NAMES: SECTION: Trial #1 Trial #2 1. Mass of the filter paper,g 0833 0862 Mass of filter paper and precipitate, g 4.531 4.564 2. Chemical equation: Al(NO;)3(ag) NaOH(a) -> 3. N° moles AI(NO3)3(aq), mol 4. N° moles NaOHag), mol 5. Limiting reactant 6. Reactant in excess 7. Theoretical yield 8. Percent yield Thinking critically: 1) Explain how it is possible to start with equal volumes and equal concentrations of both reactants, and end up with one of them being used up, and the other being in excess. 2) Is the percent yield supposed to be 100%? What could explain the discrepancy?
Chemistry & Chemical Reactivity
10th Edition
ISBN:9781337399074
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter1: Basic Concepts Of Chemistry
Section: Chapter Questions
Problem 49RGQ: Fluoridation of city water supplies has been practiced in the United States for several decades. It...
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Transcribed Image Text:NAMES:
SECTION:
Trial #1
Trial #2
1. Mass of the filter paper, g
0833
0862
Mass of filter paper and precipitate, g
4.531
4.564
2. Chemical equation:
Al(NO:)s(a)
NAOH(a)
->
3. N° moles Al(NO3)3(aq), mol
4. N° moles NAOH(aq), mol
5. Limiting reactant
6. Reactant in excess
7. Theoretical yield
8. Percent yield
Thinking critically:
1) Explain how it is possible to start with equal volumes and equal concentrations of both
reactants, and end up with one of them being used up, and the other being in excess.
2) Is the percent yield supposed to be 100%? What could explain the discrepancy?
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