An empty coffee-cup calorimeter weighs 10 grams. It is filled with water, whose temperature is 31 degrees Celsius, and is weighed again. The weighing scale displayed 55 grams. A metal sample is heated to 90 degrees Celsius and then placed into the coffee-cup calorimeter. The cover, with a thermometer, is quickly put on top of the calorimeter. The temperature reading on the thermometer stabilized at 33 degrees Celsius. The mass of the metal is 6.45 grams, Use 4.184 J/9•0C for the Specific heat of water. What is the specific heat in J/ g.0C of the metal sample?
An empty coffee-cup calorimeter weighs 10 grams. It is filled with water, whose temperature is 31 degrees Celsius, and is weighed again. The weighing scale displayed 55 grams. A metal sample is heated to 90 degrees Celsius and then placed into the coffee-cup calorimeter. The cover, with a thermometer, is quickly put on top of the calorimeter. The temperature reading on the thermometer stabilized at 33 degrees Celsius. The mass of the metal is 6.45 grams, Use 4.184 J/9•0C for the Specific heat of water. What is the specific heat in J/ g.0C of the metal sample?
Introduction to General, Organic and Biochemistry
11th Edition
ISBN:9781285869759
Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres
Publisher:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres
Chapter5: Gases, Liquids, And Solids
Section: Chapter Questions
Problem 5.85P
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An experiment on determining the heat of combustion of propanol (C3H7OH) has the following results:
mass of water inside a can = 100 g
temperature of water before heating = 31°C
temperature of water after heating = 95°C
mass of propanol used = 20 g
Find the experimental standard enthalpy of combustion of propanol in kilojoules per mole. Use 4.184 J J/g∙0C for the specific heat of water.
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