A 250 gram sample of water at the boiling point had 45.o kJ of heat added. How many grams of water were vaporized? Heat of vaporization for water is 40.6 kJ/mole. Select one: O A. 0.902 О В. 16.2 О С. 1.11 O D. 20.0 O E. none of the above

A 250 gram sample of water at the boiling point had 45.o kJ of heat added. How many grams of water were vaporized? Heat of vaporization for water is 40.6 kJ/mole. Select one: O A. 0.902 О В. 16.2 О С. 1.11 O D. 20.0 O E. none of the above

World of Chemistry, 3rd edition

3rd Edition

ISBN:9781133109655

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

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

Chapter10: Energy

Section: Chapter Questions

Problem 9A

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Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.

Question

A 250 gram sample of water at the boiling point had 45.0 kJ of heat added. How many
grams of water were vaporized? Heat of vaporization for water is 40.6 kJ/mole.
Select one:
O A. 0.902
О В. 16.2
О С. 1.11
O D. 20.0
O E. none of the above

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