Mole fraction Samenvattingen, Aantekeningen en Examens
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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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Chem 103 Module 1 to 6 Exam with Verified answers (100 OUT OF 100) Portage learning (Latest Update)
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Chem 103 Module 1 to 6 Exam with Verified answers (100 OUT OF 100) Portage learning (Latest Update) 
 
 
MODULE 1 EXAM 
Question 1	 Click this link to access the Periodic Table. This may be helpful throughout the exam. 
1.	Convert 845.3 to exponential form and explain your answer. 
2.	Convert 3.21 x 10-5 to ordinary form and explain your answer. 
 
 
1.	Convert 845.3 = larger than 1 = positive exponent, move decimal 2 places 
= 8.453 x 102 
2.	Convert 3.21 x 10-5 = negative exponent = smalle...
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ACS Gen Chem 2 Final Exam Study Guide questions with correct answers
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C CORRECT ANSWER Where is the hydrophilic (attracted to water) region of the molecule? 
(A) Region 1 
(B) Region 2 
(C) Region 3 
(D) The three regions are equally hydrophilic 
 
C CORRECT ANSWER Which molecule is most soluble in water? 
 
D CORRECT ANSWER A solution of NaCl in water has a concentration of 20.5% by mass. What is the molal concentration of the solution? 
 
Molar Mass NaCl = 58.44 g/mol 
 
(A) 0.205 m 
(B) 0.258 m 
(C) 3.51 m 
(D) 4.41 m 
 
B CORRECT ANSWER What is the mole fracti...
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ACS Gen Chem 2 Final Exam 2023 with 100% correct answers
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C - correct answer Where is the hydrophilic (attracted to water) region of the molecule? 
(A) Region 1 
(B) Region 2 
(C) Region 3 
(D) The three regions are equally hydrophilic 
 
C - correct answer Which molecule is most soluble in water? 
 
D - correct answer A solution of NaCl in water has a concentration of 20.5% by mass. What is the molal concentration of the solution? 
 
Molar Mass NaCl = 58.44 g/mol 
 
(A) 0.205 m 
(B) 0.258 m 
(C) 3.51 m 
(D) 4.41 m 
 
B - correct answer What is...
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Final Certification for CHEM 1212 Exam 2 Q&A
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Final Certification for CHEM 1212 Exam 
2 Q&A 
What is Molarity and the units for molarity? - CORRECT ANSWER-M=moles of 
solute/liters of solution, units are mol/liter 
What is Molality and the units for molality? - CORRECT ANSWER-m= moles of 
solute/moles of solvent, units are mol/kg 
What is Mass Percentage or Weight Percent and the units for mass percentage or 
weight percent? - CORRECT ANSWER-Mass %= (mass of solute/total mass of 
solution) x 100 
What is Mole Fraction and the units for...
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Chem 102 Final Exam Questions And Answers!!
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P=F/A - Answer-pressure equals force divided by area 
Boyle's Law - Answer-they volume of a fixed quantity of gas at constant temperature is INVERSELY 
proportional to the pressure 
Boyle's Law equation - Answer-PV=K 
Charles's Law - Answer-The volume of a fixed amount of gas at a constant pressure is directly 
proportional to its absolute temperature 
Charles's Law Equation - Answer-V/T=K 
Avogadro's Law - Answer-The volume of a gas at constant temperature and pressure is directly 
proport...
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UCSB CHEM 6AL Final Exam Questions With 100% Correct Answers.
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Intermolecular forces and how they affect physical properties /purification techniques: dipole-dipole, 
electrostatic, hydrogen, ion, london, - Answer-*dipole-dipole*: polar covalent molecules such as 
aldehydes and ketones. positive and negative end. polar molecules must be close together for force 
to be significant. weaker than ion-dipole forces; increase with polarity of molecule. 
*electrostatic*: occur between charged species, cations and anions, and are responsible for very high 
MP and B...
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Master Plumbing – Arithmetic- Questions With Complete Solutions
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Interest correct answer: amount of money earned for the use of the borrowed capital; (borrower) amount of money paid for the capital; (lender) income generated by the capital which he lent 
 
Simple Interest correct answer: interest where only the original principal bears interest which varies directly with time 
 
 
Ordinary simple interest correct answer: computed on the basis of the banker's year 
1 year = 12 mos. 
1 mo. = 30 days 
1 year = 360 days 
 
Exact Simple Interest correct answ...
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AQA A-level CHEMISTRY 7405/1 Paper 1 Inorganic and Physical Chemistry Version: 1.0 Final *JUN237405101* IB/M/Jun23/E9 7405/1QUESTION PAPER & MARKING SCHEME/ [MERGED] Marl( scheme June 2023
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MCAT General Chemistry 216 Questions with 100% Correct Answers | Verified | Latest Update
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STP - ️️0°C and 1 atm 
 
Ideal Gas Law - ️️PV = nRT 
 
At STP, 1 mol of gas will occupy ... - ️️22.4 L 
 
Characteristics of an Ideal Gas - ️️1. Gas molecules have zero volume 
2. Gas molecules exert no forces other than repulsive forces due to collisions 
3. Gas molecules make completely elastic collisions 
4. The avg. kinetic energy of gas molecules is directly proportional to the temperature of the gas 
 
Partial pressure of a gas (equation) - ️️Partial pressure equals th...
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Final Certification for CHEM 1212 Exam 2 Q&A
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Final Certification for CHEM 1212 Exam 
2 Q&A 
What is Molarity and the units for molarity? - CORRECT ANSWER-M=moles of 
solute/liters of solution, units are mol/liter 
What is Molality and the units for molality? - CORRECT ANSWER-m= moles of 
solute/moles of solvent, units are mol/kg 
What is Mass Percentage or Weight Percent and the units for mass percentage or 
weight percent? - CORRECT ANSWER-Mass %= (mass of solute/total mass of 
solution) x 100 
What is Mole Fraction and the units for...