14 the mass spectrometer - Study guides, Class notes & Summaries
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MCAT entrance exam all subjects combined questions & answers latest update
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m 
 
 
 
 
 
 
1.	Which of the following is the mRNA start codon in most cases? 
 
A.	UAA	B. AGU	C. AUG	D. UGA 
 
 
 
2.	Which of the types of RNA is the smallest? 
 
A.	mRNA	B. tRNA	C. rRNA	D. 
 
 
 
3.	Which of the following is not considered a pyrimidine? 
 
A.	C	B. T	C. U	D. G 
 
 
 
4.	Which of the following is paired correctly? 
 
A.	A-G	B. C-G	C. A-U	D. G-T 
 
 
 
5.	Which of the following characterizes a Western blot? 
 
A.	Antibody/protein hybridization	B. DNA/RNA combination	C. RNA ...
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1.4 The Mass Spectrometer|60 Questions And Answers|
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What is mass spectrometry? - ️️an accurate instrumental technique used to determine the relative isotopic mass and the relative abundance for each isotope. Relative atomic mass can be calculated from this 
What is the relative isotopic mass of an isotope? - ️️the mass of the isotope on a scale on which a carbon-12 atom has a mass of exactly 12 units. 
The mass spectrometer is the most useful instrument for the accurate determination of what? - ️️relative atomic masses (Ar) 
What is t...
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A Level Physical Chemistry AQA questions and answers 100% verified.
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A Level Physical Chemistry AQA questions and answers 100% verified. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1 - ANS.relative mass of a proton 
 
1 - ANS.relative mass of a neutron 
 
1/1840 - ANS.relative mass of an electron 
 
+1 - ANS.relative charge of a proton 
 
0 - ANS.relative charge of a neutron 
 
-1 - ANS.Relative charge of an electron 
 
strong nuclear force - ANS.How is the nucleus held together 
 
nuclear force - ANS.is the nuclear force or electrostatic force stronge...
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HESI A2 CHEMISTRY-CHRISJAY FILES (1) (1)
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HESI A2 ENTRANCEEXAM 
FOR 
CHAMBERLAINCOLLGE 
OF NURSING 
2023 QUESTIONS WITH 
ANSWERS 
CHEMISTRY 
HESI A2 CHEMISTRY V1/V2 FILE 
1. If a Hydrogen isin a compound, what would its oxidation number be? 
+1 
2. What isthe oxidation number of any simple ion? 
+1 or -1 depending on the charge of the ion 
3. How many kilograms are in a pound? 
0. kg 
4. What is the temperature for freezing point of water in Celsius? 
0 degrees Celsius (32°F for Fahrenheit) 
5. What is the conversion of Celsius to Fah...
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CWEA Lab Analyst Grade 1, questions and answers with rated solutions
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CWEA Lab Analyst Grade 1, questions and answers with rated solutions 
Celcius 
(F-32)5/9 
 
 
 
HPC media water bath 
45`C, 3hr 
 
 
 
Precision 
a measure of how close a series of measurements are to one another 
 
 
 
Accuracy 
how close a measurement is to the true value 
 
 
 
Electrical Fire 
unplug & sodium bicarbonate 
 
 
 
analytical balance 
a device for determining mass that gives highly accurate measurements 
 
 
 
top loading balance 
used to determine mass; not as precise as an ana...
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A Level Physical Chemistry AQA (2022/2023) Already Graded A+
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A Level Physical Chemistry AQA (2022/2023) Already Graded A+ relative mass of a proton 1 
relative mass of a neutron 1 
relative mass of an electron 1/1840 
relative charge of a proton +1 
relative charge of a neutron 0 
Relative charge of an electron -1 
How is the nucleus held together strong nuclear force 
is the nuclear force or electrostatic force stronger nuclear force 
what does the atomic number represent number of protons 
the number of protons in an atom atomic number z 
what does the ...
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CWEA Lab Analyst Grade 1 Questions With 100% Solved Solutions!!
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Celcius - Answer-(F-32)5/9 
HPC media water bath - Answer-45`C, 3hr 
Precision - Answer-a measure of how close a series of measurements are to one another 
Accuracy - Answer-how close a measurement is to the true value 
Electrical Fire - Answer-unplug & sodium bicarbonate 
analytical balance - Answer-a device for determining mass that gives highly accurate measurements 
top loading balance - Answer-used to determine mass; not as precise as an analytical balance 
triple beam balance - Answer-inst...
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Test Bank For Chemistry Human Activity, Chemical Reactivity (International Edition by Paul Treichel
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Chapter 1—Human Activity, Chemical Reactivity 
 TRUE/FALSE 
1. Knowledge of chemistry applies to your everyday life. ANS: T PTS: 1 REF: p. 1 
2. Electromagnetic radiation can be used as a type of chemotherapy. ANS: F PTS: 1 REF: p. 3 
3. Oxygen (O2) can exist only in one energy state. 
ANS: F PTS: 1 REF: p. 3 
BLM: Remember 
BLM: Remember 
BLM: Remember 4. The toxicity of substances can be used to good advantage in chemotherapy. 
ANS: T PTS: 1 REF: p. 3 BLM: Remember 
5. Singlet oxygen can be ...
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Chemistry Human Activity, Chemical Reactivity (International Edition by Paul Treichel - Test Bank
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NETA Assessment: Test Bank to accompany Chemistry: Human Activity, Chemical Reactivity, Second International Edition 
By Peter G. Mahaffy, Robert Bucat, Roy Tasker, John C. Kotz, Paul M. Treichel, Gabriela C. Weaver, John McMurry 
Test Bank prepared by Brett McCollum, Mount Royal University Text ISBN: 0176660887 
NETA copy editor: Kelli Howey 
For more information contact Nelson, 1120 Birchmount Road, Toronto, Ontario M1K 5G4. Or you can visit our Internet site at . 
ALL RIGHTS RESERVED. No part...
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Test Bank For Chemical Principles 8th Edition Zumdahl
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Chapter 03 - Stoichiometry 
1. Bromine exists naturally as a mixture of bromine-79 and bromine-81 isotopes. An atom of bromine-79 contains 
a. 79 protons, 79 electrons, and 35 neutrons. b. 35 protons, 44 neutrons, and 35 electrons. c. 44 protons, 44 electrons, and 35 neutrons. d. 34 protons and 35 electrons only. 
e. 35 protons, 79 neutrons, and 35 electrons. 
ANSWER: POINTS: DIFFICULTY: TOPICS: KEYWORDS: 
b 
1 
easy 
3.1 
atomic theory of matter | early atomic theory | general chemistry | isoto...
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