Freezing point depression Study guides, Class notes & Summaries

Urinalysis & Body Fluids MLT ASCP Exam || Questions & Answers (Graded A+) Urinalysis & Body Fluids MLT ASCP Exam || Questions & Answers (Graded A+) The indicator(s) used in the pH test region of the chemical reagent strips for urine is/are: (Choose ALL correct answers) A. methyl red B. methyl blue C. bromothymol blue D. bromothymol red - ANSWER - A & C; The indicator(s) used in the pH test region are methyl red and bromothymol blue. Typically on most chemical reagent strips for urine ...

CHEM 103 Experiment 8 Molecular Mass Latest 100%Solved (Portage Learning). Experiment #: 8 Title: Molecular Mass Purpose: To Determine the Molar mass of unknowns. Molar mass estimation by freezing point depression. Determining the freezing point of the solvent cyclohexane and unknown solutes. Lastly, estimating the molar mass of solutes compared to the actual value. Procedure : Cyclohexane Molar Mass Cooling Curve ● Measure 10 ml of cyclohexane and place it in a test tube. ● Cap the...

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...

Molarity (M) - mols solute / L of solution Molality (m) - mols solute / kg solvent Freezing point depression / boiling point elevation deltaT(b) or deltaT(f) - deltaT(b or f) = i*K(b or f)*m i = Van't Hoff factor Kb or Kf = constant m = molality of solute Osmotic pressure (pi) - pi = i*M*R*T i = Van't Hoff factor M = molarity R = gas law constant 0.08206 L*atm/K*mol T = temperature (K) Van't Hoff factor (i) - i = mols of particles in solution / mols of solute dissolves applies fo...

All Domains Jean Inman Questions with Explanations of Answers Which amino acids must be present in a parenteral solution? a. valine, leucine, glycine, alanine b. tryptophan, phenylalanine, threonine, isoleucine c. phenylalanine, methionine, arginine, tyrosine d. lysine, glutamic acid, alanine, glycine - ANS- b. tryptophan, phenylalanine, threonine, isoleucine A parenteral solution requires adequate supplementation of all essential amino acids. Essential amino acids = those that can...

MLT ASCP Practice Questions Urinalysis & Body Fluids Latest Questions With Verified Answers +Rationale / The indicator(s) used in the pH test region of the chemical reagent strips for urine is/are: (Choose ALL correct answers) A. methyl red B. methyl blue C. bromothymol blue D. bromothymol red [Ans: - A & C; The indicator(s) used in the pH test region are methyl red and bromothymol blue. Typically on most chemical reagent strips for urine pH, with an increase in urinary pH, the indica...

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 dispersed uniformly throughout the solvent - Solute = compound(s) in lesser amount - ...

Highest: Nh3 SbH3 AsH3 PH3 The hydrides of group 5A are NH3, PH3, AsH3, and SbH3. Arrange them from highest to lowest boiling point. Dispersion What is the strongest type of intermolecular force present in H2? Co2 Identify the compound that does not have dipole-dipole forces as its strongest force. 1 and 2 Which of the following must be overcome during the boiling of acetonitrile, CH3CN? 1. dispersion forces 2. dipole-dipole forces 3. hydrogen bonds I>III&gt...

ABCTE Biology Terms Exam 143 Questions with Verified Answers Acidic solution - CORRECT ANSWER contains more hydrogen ions than hydroxide ions basic solution - CORRECT ANSWER contains more hydroxide ions than hydrogen ions colligative properties - CORRECT ANSWER properties of a solution that depend only on the number of particles dissolved in it, not the properties of the particles themselves. The main ones are boiling point elevation and freezing point depression. boiling point eleva...

ASP Exam Study Guide - Questions and Answers (Complete Solutions) Which is a specific requirement of a hot work permit program? A. Permit must be issued for only cutting operations B. Permit must be issued for all hot work operations C. Permit must be issued for only brazing operations D. Permit must be issued for only welding operations Which is a term used to describe a dust explosion? A. Depression B. Confinement C. Dispersion D. Ignition Which are the four elements necessary to start a fir...