Chem lab data Study guides, Class notes & Summaries
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CHEM 162 EXPERIMENT 4: I. Fractional Crystallization Of KNO3 With 2Fe2.6H2O Impurity II. The Solubility Curve Of KNO3
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CHEM 162 EXPERIMENT 4: I. Fractional Crystallization Of KNO3 With 2Fe2.6H2O Impurity II. The Solubility Curve Of KNO3. Goals of this lab: 
• Demonstrate the purification of a solid sample using the process of fractional crystallization 
• Construct a solubility curve for potassium nitrate 
• Apply the mechanics of dimensional analysis and an understanding of solubility of solids to calculatecomposition by mass, % impurity, % recovery, solubility product constant, enthalpy of solution forma...
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CHEM 162 EXPERIMENT 4: I. Fractional Crystallization Of KNO3 With 2Fe2.6H2O Impurity II. The Solubility Curve Of KNO3
- Exam (elaborations) • 29 pages • 2023
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CHEM 162 EXPERIMENT 4: I. Fractional Crystallization Of KNO3 With 2Fe2.6H2O Impurity II. The Solubility Curve Of KNO3. Demonstrate the purification of a solid sample using the process of fractional crystallization 
• Construct a solubility curve for potassium nitrate 
• Apply the mechanics of dimensional analysis and an understanding of solubility of solids to calculatecomposition by mass, % impurity, % recovery, solubility product constant, enthalpy of solution formand entropy of solution f...
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Multiple Sclerosis (MS) Questions and Answers Graded A
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Multiple Sclerosis (MS) Questions and Answers Graded A 
True or False MS is most commonly diagnosed before the age of 20. False = most commonly between 20-50 years 
True or False 
While the ratio of women developing MS is 2:1 to men, men are more likely to have a higher severity of disability True 
True or False Prevalence of MS increases in those who live closer to the equators. False = there is a link to Vitamin D levels; prevalence increases in those who live FARTHER from the the equator 
Out...
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AALAS Chapter 1question well answered
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first step of resarch - correct answer define a question to be answered 
 
Final step of research - correct answer Report the data and conclusions 
 
Federal Grants - correct answer Last 3-5 years. NIH, NSF main granting agencies 
NIH brand of PHS biomedical 
NSF nonbiomedical involves animal in basic biology/behavior math chem 
 
Other granting agencies - correct answer DOD, DOE, USDA, NASA, USUHS, DARPA, AFRI, AFIP, VA 
P 
 
Private Funding - correct answer biotechnology companies , pharmaceut...
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CHEM 106.Lab Report 14: Acids, Bases, Salts and Buffers Acids and bases are pHun.
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CHEM 106.Lab Report 14: Acids, Bases, Salts and Buffers Acids and bases are pHun. 
CHEM 106.Lab 14: Acids, Bases, Salts and 
Buffers Acids and bases are pHun. 
Introduction: The topic of acids and bases in chemistry is an interesting one to 
understand as it relates back to our daily lives. In this topic there are various terms that 
are of importance to learning the processes and underpinnings that make up this topic. 
These terms can be found below in the fundamental theories or laws sec...
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CHEM 162 EXPERIMENT #5: SPECTROCHEMICAL SERIES (Complete Solution)
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CHEM 162 EXPERIMENT #5: SPECTROCHEMICAL SERIES (Complete Solution)Goals of this lab: 
•	Produce a copper coordination compound and evaluate the yield 
•	Calculate d-orbital splitting energies from spectral data in nanometers 
•	Apply Crystal Field Theory to the comparison of ligand field strengths among groups of coordination complexes 
•	Assess the accuracy of experimental data and identify sources of error 
 
Your lab report will be graded on the following criteria using a poor/good/ex...
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CHEM 162 Experiment Lab 4: Fractional Crystallization Part I: Fractional Crystallization of KNO3 with (NH4)2Fe(SO4)2.6H2O Impurity | 2023 Complete
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CHEM 162 Experiment Lab 4: Fractional Crystallization Part I: Fractional Crystallization of KNO3 with (NH4)2Fe(SO4)2.6H2O Impurity | 2023 Complete. Starting Components (Fract. Crystallization #0) data entry 3 
Step 3: Mixture before first crystallization 3 
mass KNO3 4.501 g 
mass (NH4 
)2Fe(SO4 
)2 
. 
6H2O 0.501 g 
Total mass of the sample mixture 5.002 g 
% Impurity (i.e., % Fe compound in the mixture)* 10.02 % 
*(This is your % impurity for Fract. Crystallization # 0) 
Fract. Crystallization...
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CHEM 207 REVIEW EXAMS QUESTIONS AND ANSWERS
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CHEM 207 
REVIEW EXAMS QUESTIONS AND ANSWERS 
 
Practice questions for the exam with solutions. For you to do well on the exam, please work on the questions before looking at the solutions. If you find an error, let me know so I can let everyone know. REMEMBER THE EXAM IS ON Monday, Sept 28th on Top Hat. The exam will have 20 questions and only one hour. Studying the lecture ppts and lecture questions would also be helpful. 
Lecture 1A questions: Density and stat analysis, Q and T tables, % Tole...
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Chem 162 Final Exam Questions and Answers Latest Updated 2024/2025 (Graded A+)
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Chem 162 Final Exam Questions and Answers Latest Updated 2024/2025 (Graded A+) Chemistry definition correct answers Study of structure, properties, transformations of matter 
Matter correct answers Anything that has mass + takes up space 
Phases: solid, liquid, gas 
Condensed phases = solids + liquids 
Intermolecular Forces (IMF) correct answers = Interactions between molecules/atoms/ions 
Solution correct answers = Homogenous mixtures of 2+ pure substances 
In a solution, the solute is disperse...
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CHEM 106.Lab Report 14: Acids, Bases, Salts and Buffers Acids and bases are pHun.
- Other • 13 pages • 2023
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CHEM 106.Lab Report 14: Acids, Bases, Salts and Buffers Acids and bases are pHun. 
Introduction: The topic of acids and bases in chemistry is an interesting one to 
understand as it relates back to our daily lives. In this topic there are various terms that 
are of importance to learning the processes and underpinnings that make up this topic. 
These terms can be found below in the fundamental theories or laws section. In general 
acids can be identified by their sour taste and they can be...
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