Freezing Point Depression

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Date Submitted: 11/26/2012 10:40 AM

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Freezing Point Depression Lab Report

Beginning Question

How is value i related to the freezing point of the solutions?


The chemicals involved in this laboratory include: NaCl, C12H22O11, CaCl2*2H2O, and Fe(NO3)3*9H2O. NaCl may cause mild irritation if inhaled, can cause vomiting and diarrhea if ingested, may irritate skin and can cause eye irritation if direct contact with eyes. If Sucrose (C12H22O11) is inhaled or comes into contact with skin or eyes, there are no health concerns. Ingesting large doses of sucrose may cause gastrointestinal problems. CaCl2*2H2O may cause respiratory irritation if inhales, may cause serious irritation to mucous membranes if ingested, can cause mild irritation to skin, and if this chemical comes in contact with your eyes it could cause severe burns. Fe(NO3)3*9H2O can cause irritation to respiratory tract if inhaled, can cause irritation to gastrointestinal tract if ingested. This chemical can also cause skin irritation if exposed to skin and irritation, pain and redness if this chemical comes into contact with your eyes. For any of these chemicals if you inhale them, remove to fresh air. For NaCl and Sucrose if ingested give large amounts of water to drink and get medical advice. For CaCl2*2H2O, and Fe(NO3)3*9H2O, if ingested induce vomiting immediately and get medical attention. For all of these chemicals in case of skin contact, remove excess chemicals and flush skin for at least 15 minutes. For all these chemicals in case of eye contact flush eyes for at least 15 minutes. During lab make sure to dispose of chemicals in the right waste container. Also dress in appropriate clothing and always wear goggles in lab. During the lab do not stir with thermometer.


To begin this experiment obtain a thermometry, two 150-mL beakers, plastic weight boats, stirring rod, crushed ice and distilled water. Before beginning this experiment the accuracy of the thermometer needs to be tested. To do this fill a 150-mL beaker...