colligative properties lab report


colligative properties lab report

Colligative Properties: Freezing-Point Depression and Molar Mass lab report. Colligative Properties: The difference in freezing point can be used in the colligative property law to determine the experimental molality of the solution, leading to a calculation of molecular weight. The freezing temperature is difficult to ascertain by direct. CHM Colligative Properties Experiment: Determination of Molar Mass by Freezing Point Depression using Paradichlorobenzene Introduction: The vapor pressure of a pure liquid at a given temperature is a characteristic property of that liquid. However, when a nonvolatile . Lab 9. Colligative Properties—an Online Lab Activity Prelab Assignment Before coming to lab: This lab exercise does not require a report in your lab notebook. The report for this exercise consists of completing the attached Report pages that start on page 3 as you carry out the procedure on page 2. Answer questions 1 and 2 on page 3.

Chemistry 20 Colligative Properties Lab Help? | Yahoo Answers

This includes the freezing point depression, and osmotic pressure. Two ice baths were made, one with pure water, the other with salt water.

The lowest temperature was then record for each bath and compared. The salt water had a lower freezing point than colligative properties lab report pure water by 2 degrees which supports the hypothesis that solutions…. In this…. Version Lab Report Assistant This document is not meant to colligative properties lab report a substitute for a formal laboratory report. The first is to teach us about freezing points. This lab was designed to show us the freezing point of a pure solvent, in comparison to a solvent in a solution with a non-volatile solute, colligative properties lab report.

The second goal of the experiment is to teach students about osmosis. In the experiment, we got to observe osmosis as well as understand dialysis…. Essays Essays FlashCards. Browse Essays. Show More. I do not think that equilibrium was reached because the osmotic pressure caused the rubber band to come off the end of the dialysis tubing.

With the raw egg experiments, I believe that a certain element in the eggshell must have bonded with another element in vinegar and left in the form of the bubbles.

This is what probably caused the shell to disappear. The vinegar was also hypotonic to the egg clearly making the egg larger. The colligative properties lab report solution was hypertonic to the egg making the egg smaller.

Questions A. To what biological structure is the dialysis bag comparable? How is it similar? How is it different? The dialysis bag is similar to the cell wall of a cell. It is similar in that it allows water in and out in order to achieve equilibrium through osmosis.

It is different because a cell also allows things in through active and passive transport. The dialysis tubing only allows things in and out based on the size of the permeations in the dialysis tubing, colligative properties lab report.

In biological systems if a cell is placed into a salt. Read More. Words: - Pages: 6. Words: - Pages: 8. Words: - Pages: 3. Popular Essays. The Importance of Companionship The Attack. Ready To Get Started? Create Flashcards. Discover Create Flashcards Mobile apps.


Colligative Properties: Freezing-Point Depression and Molar Mass


colligative properties lab report


colligative properties lab report - Free download as PDF File .pdf), Text File .txt) or read online for free. determining the freezing point depression and boiling point elevation of a substance.5/5(1). Pre-Lab Discussion. Distinguish between solute and solvent. Solute is the lesser component and solvent the greater component in a solution. List three colligative properties and suggest a rationale for the choice of the word colligative to describe these properties. The three colligative properties are boiling point, freezing point, and vapor. Lab 1: Colligative Properties & Osmotic Pressure Purpose: The purpose of this laboratory was to gain an understanding of the differences between the freezing points of pure solvent to that of a solvent in a solution with a nonvolatile solute, and to compare the two.