A 100.0 mL sample of 0.200 M aqueous hydrochloric acid is added to 100.0 ml of 0.200 Maqueous ammonia in a calorimeter whose heat capacity (excluding any water) is 480.0 J/K.The following reaction occurs when the two solutions are mixed.HCl(aq)+NH,(aq)-NH,CI(aq)The temperature increase is 2.34 °C. Calculate AH per mole of HCl and NH, reacted.Select one:a. 485 KJ/molb. 1.96 KJ/molo. 154 KJ/mold. -1.96 KJ/male. -154 KJ/mol Which of the following is NOT a unit in the SI system of units?Select one:a. meterb. secondC. inchd. kilogam

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Which of the following is NOT a unit in the SI system of units? Select one: a. meter b. second C. inch d. kilogam

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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Concept explainers

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.

Question

A 100.0 mL sample of 0.200 M aqueous hydrochloric acid is added to 100.0 ml of 0.200 M
aqueous ammonia in a calorimeter whose heat capacity (excluding any water) is 480.0 J/K.
The following reaction occurs when the two solutions are mixed.
HCl(aq)+NH,(aq)-NH,CI(aq)
The temperature increase is 2.34 °C. Calculate AH per mole of HCl and NH, reacted.
Select one:
a. 485 KJ/mol
b. 1.96 KJ/mol
o. 154 KJ/mol
d. -1.96 KJ/mal
e. -154 KJ/mol

Which of the following is NOT a unit in the SI system of units?
Select one:
a. meter
b. second
C. inch
d. kilogam

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