Ninhydrin Study guides, Class notes & Summaries
Looking for the best study guides, study notes and summaries about Ninhydrin? On this page you'll find 42 study documents about Ninhydrin.
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CHEMISTRY 108 Lab Exam 3 Study Guide.
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CHEMISTRY 108 Lab Exam 3 Study Guide. Lab exam 3 
Exam Page 1 
Answer the following two questions 
Why was the paper chromatogram sprayed with ninhydrin solution in the chromatogram experiment? 
It causes the amino acids to react and change color so we could read the analysis of the experiment. 
Why was no peak for Hydrogen present in the SEM spectrum for aspirin (C9H8O9)? 
H is no able to be detected by the SEM. 
Answer Key 
Answer the following two questions 
Why was the paper chromatogram s...
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TLETA WEEK 11 ACTIVITY WEEK TEST QUESTIONS AND ANSWERS
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TLETA WEEK 11 ACTIVITY WEEK TEST 
QUESTIONS AND ANSWERS 
When securing perimeter of crime scene how should initial boundaries be set? - Answer ️️ - 
Wide & make smaller if needed 
What best describes transfer concept? - Answer ️️ -Something is always taken to and from a 
scene 
Most important factor in crime scene photography? - Answer ️️ -Light 
When are fingerprints formed? - Answer ️️ -In utero before birth 
Why are fingerprints used for identification? - Answer ️️ -Unique...
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Lab 2 - B03 Nutritional Composition of Beer
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Nutritional Composition of Beer 
Introduction: 
The purpose of the experiment was to determine the nutritional composition of beer, 
specifically the amounts of sugar, protein, and amino acids. This was significant because beer 
can then positively or negatively contribute to an individual’s diet. The determination of 
reducing sugars was completed by a DNS assay, which occurs by one molecule of 3,5- 
dinitrosalicylic acid (DNS) reacts with one molecule of reducing sugar under basic conditions...
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CHEMISTRY 108 Lab Exam 3 Study Guide.
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CHEMISTRY 108 Lab Exam 3 Study Guide. Lab exam 3 
Exam Page 1 
Answer the following two questions 
Why was the paper chromatogram sprayed with ninhydrin solution in the chromatogram experiment? 
It causes the amino acids to react and change color so we could read the analysis of the experiment. 
Why was no peak for Hydrogen present in the SEM spectrum for aspirin (C9H8O9)? 
H is no able to be detected by the SEM. 
Answer Key 
Answer the following two questions 
Why was the paper chromatogram ...
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MLT microbiology final exam 2023 with 100% correct answers
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Sterlization technique 
pressurized heat at 121 degrees Celsius. 15 lbs of psi. verified by a suspension of spores then inoculate a plate. 
 
 
 
What is the number one gram positive wound infection? 
Staph aureus 
 
 
 
What are the two methods of the coagulase test? 
Slide, which is free and tube, which is bound. 
 
 
 
Staphylococcus aureus 
a form of staphylococci that commonly infects wounds and causes serious problems. Gram positive in clusters. 
 
 
 
Streptococcus pneumoniae 
Alpha-hemol...
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MASTERY QUIZ (LAS 1-4) LAB
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Which of the following statement is/are CORRECT? I.Starch consist of 
a greater proportion of amylopectin than amylose II.Amylopectin 
has both -1,4 and -1,6 glycosidic linkage III. Amylose is a long, 
unbranched polymer of glucose with -1,4 glycosidic linkage 
IV.Amylose can be easily digested because of its linear chain 
structure 
1/1 
I & II 
I-IV 
I & III 
I,II,III 
I & IV 
Which of the following is not from animal origin? 
1/1 
Amylum 
Glycogen 
Chitin 
Hyaluronic acid 
Which of the follow...
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CHEM 103 LAB EXAM 3 QUESTIONS AND ANSWERS
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CHEM 103 LAB EXAM 3 QUESTIONS AND ANSWERS 
 
Question 110 / 10 ptsScientific Calculator 
 
Answer the following two questions: 
1.	Why was H2SO4added to the metal carbonate in part 1 of lab 3? 
2.	Why were gloves used during the ninhydrin spray procedure? 
 
1.	H2SO4was added to the metal carbonate in lab 3 to cause the loss of CO2 
 
2.	Gloves were used during the ninhydrin spray procedure to prevent the reagent from reacting with the dead skin amino acids and causing purple marks on the skin. ...
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Exam 5,6,9 forensic questions and correct answers
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Fingerprints are considered individual evidence. - correct answer True 
 
RISC fingerprints make up the majority of fingerprints in the NGI database - correct answer False 
 
Ninhydrin, used to visualize latent fingerprints, - correct answer should not be inhaled 
 
The ten print card was first used in the 1800s - correct answer True 
 
Most fingerprints have a loop pattern. - correct answer True 
 
Secretions of the skin - correct answer are a mixture of water, oils, and salts 
 
NGI and ...
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Chemistry 1212 Lab Final Exam Complete Questions and Answers
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Chemistry 1212 Lab Final Exam 
Complete Questions and Answers 
Introductory Lab - CORRECT ANSWER-Purpose: Review of sig figs, slope formula (Y2- 
Y1/X2-X1); percent error formula ([Accepted-Experimental (/) Accepted] x 100%); 
rounding, scientific notation, & excel. 
Procedure: Measured various objects for circumference (C=2πr) and diameter (2r), then 
produced a graph comparing the two factors. 
Results: N/A 
Significant Figure Rules - CORRECT ANSWER-1. All non-zeros are significant. 
Ex: ...
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Forensics Unit 4 - Midterm Review Fingerprinting
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Forensics Unit 4 - Midterm Review 
Fingerprinting 
Iodine Fuming - ANSWER-Print (on paper or cardboard etc.) is exposed to chemical 
vapors, which react with oils from the skin to create a brownish image 
Silver Nitrate - ANSWER-Object (like wood or styrofoam) is dipped or sprayed with 
chemical; print develops as a black image (reddish brown under UV light) 
Cyanoacrylate - ANSWER-Vapor must be heated and applied underneath a hood; the 
white print that forms because the vapor clings to water a...
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