Mole fraction Study guides, Class notes & Summaries

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 ...

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...

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...

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...

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...

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...

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...

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...

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...

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 the mole fraction of the gas (number of ...