Use the information provided below to calculate the quantity of heat (in kJ) required to convert 70.43 g of substance A from an initial temperature of 139.6°C to a final temperature of 70.58°C. The molar mass of the substance is 32.96 g/mol. Melting Point of A = 7.19°C Heat of fusion = 8.74 kJ/mol %3D %3D Boiling point of A = 111°C Heat of vaporization = 67.19 kJ/mol %3D %3D Solid Liquid Gas Specific heat (J/g°C) 2.24 4.45 6.81 Report your answer to the tenths place and do not include units. Do not include a sign with your answer.

Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter4: Energy And Chemical Reactions
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Problem 40QRT: Calculate the quantity of heating required to convert the water in four ice cubes (60.1 g each) from...
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Use the information provided below to calculate the quantity of heat (in kJ)
required to convert 70.43 g of substance A from an initial temperature of 139.6°C
to a final temperature of 70.58°C. The molar mass of the substance is 32.96 g/mol.
Melting Point of A = 7.19°C
Heat of fusion = 8.74 kJ/mol
%3D
%3D
Boiling point of A = 111°C
Heat of vaporization = 67.19 kJ/mol
%3D
Solid
Liquid
Gas
Specific heat (J/g°C)
2.24
4.45
6.81
Report your answer to the tenths place and do not include units. Do not include a
sign with your answer.
Transcribed Image Text:Use the information provided below to calculate the quantity of heat (in kJ) required to convert 70.43 g of substance A from an initial temperature of 139.6°C to a final temperature of 70.58°C. The molar mass of the substance is 32.96 g/mol. Melting Point of A = 7.19°C Heat of fusion = 8.74 kJ/mol %3D %3D Boiling point of A = 111°C Heat of vaporization = 67.19 kJ/mol %3D Solid Liquid Gas Specific heat (J/g°C) 2.24 4.45 6.81 Report your answer to the tenths place and do not include units. Do not include a sign with your answer.
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