Molality Study guides, Class notes & Summaries

CHEM 103 Notebook entry for lab 7 _Molality Colligative properties (Portage Learning) MOLALITY COLLIGATIVE PROPERTIES Experiment #7 - Molality Colligative Properties Date: 06-18-2020 Title: Molality Colligative Properties Purpose: - The purpose of this experiment is to demonstrate the idea of colligative properties. We will demonstrate this by making something most people love, ice cream. Procedure: To do this we need to use (NaCl and CaCl2). ● We will measure the amount of salt...

QUESTIONS AND ANSWERS

CHEM 1212: Final Exam Questions and Answers Colligative Properties - CORRECT ANSWER-properties of solution, such as freezing point and boiling point, which depend on the concentration of solute particles dissolved in the solvent Freezing Point Depression Equation - CORRECT ANSWERMolality - CORRECT ANSWER-moles of solute per kg of solvent Molality= - CORRECT ANSWERWhat is the definition of colligative properties? (Antifreeze) - CORRECT ANSWERproperties of a solution that depend on the...

CHEM 1212: Final Exam Questions and Answers Colligative Properties - CORRECT ANSWER-properties of solution, such as freezing point and boiling point, which depend on the concentration of solute particles dissolved in the solvent Freezing Point Depression Equation - CORRECT ANSWERMolality - CORRECT ANSWER-moles of solute per kg of solvent Molality= - CORRECT ANSWERWhat is the definition of colligative properties? (Antifreeze) - CORRECT ANSWERproperties of a solution that depend on the...

If 0.100 mol of solute is added to 0.500 L of solvent with a density of 0.790 g/mL, the molality of the solution is a. 0.166 m b. 0.253 m c. 1.27x10^-4 m d. none e. 0.200 m : b. This question counts the weight of two questions. The half-life of a reactant in a first-order reaction was measured to be 6.10 hours. If the starting concentration is 1.00 M, what is the remaining concentration after 7.43 hours? The first-order rate equations are ln [A]t = -kt + ln [A]0 and t1/2=0.693/k ...

If 0.100 mol of solute is added to 0.500 L of solvent with a density of 0.790 g/mL, the molality of the solution is a. 0.166 m b. 0.253 m c. 1.27x10^-4 m d. none e. 0.200 m : b. This question counts the weight of two questions. The half-life of a reactant in a first-order reaction was measured to be 6.10 hours. If the starting concentration is 1.00 M, what is the remaining concentration after 7.43 hours? The first-order rate equations are ln [A]t = -kt + ln [A]0 and t1/2=0.693/k ...

CHEM 103 Notebook entry for lab 7 _Molality Colligative properties-Top score-2023-2024

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...

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...

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...