Deicers are often used in cities to decrease the amount of ice on the roads and sidewalks during the winter season. Deicers can be used alone or they can be mixed with salt and sand. Design an experiment using calorimetry that allows a student to contrast and compare two different brands of deicer. Your answer should include: - two important chemical or physical properties of the deicer - a step-by-step procedure, identifying variables - a list of materials and equipment (you may include labelled diagrams) - one environmental concern regarding the use of deicers

Deicers are often used in cities to decrease the amount of ice on the roads and sidewalks during the winter season. Deicers can be used alone or they can be mixed with salt and sand. Design an experiment using calorimetry that allows a student to contrast and compare two different brands of deicer. Your answer should include: - two important chemical or physical properties of the deicer - a step-by-step procedure, identifying variables - a list of materials and equipment (you may include labelled diagrams) - one environmental concern regarding the use of deicers

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Substance X was dissolved in a beaker of water, and it was observed that the beaker felt warmer. This is an example of an exothermic process. true or false
Use the References to access important values if needed for this question. When a solid dissolves in water, heat may be evolved or absorbed. The heat of dissolution (dissolving) can be determined using a coffee cup calorimeter. Thermometer Cardboard or In the laboratory a general chemistry student finds that when 14.72 g of BaBr2(s) are Styrofoam lid dissolved in 101.00 g of water, the temperature of the solution increases from 22.80 to 25.27 °C. The heat capacity of the calorimeter (sometimes referred to as the calorimeter constant) was determined in a separate experiment to be 1.82 J/°C. Nested Styrofoam cups Based on the student's observation, calculate the enthalpy of dissolution of BaBr2(s) in kJ/mol. Reaction occurs in solution. Assume the specific heat of the solution is equal to the specific heat of water. AHdissolution = kJ/mol
SUBJECT : GENERAL CHEMISTRY 2 TOPIC : HEAT AND CALORIMETRY
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