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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Question
Explain the difference in reaction time between the powder and chunk forms of calcium carbonate using principles of collisions theory.

Transcribed Image Text:A student conducts an experiment to study the reaction between calcium carbonate (
CACO3) and hydrochloric acid (HCI). The equation for the reaction is shown below.
CaCO3 + 2HCi → H,0 + CO2+ CaCl2
The student measures the amount of time required for 1 g of calcium carbonate in two
different forms, powder and chunks, to react completely using two solutions of hydrochloric
acid of unknown concentration in excess. The data from the experiment are shown below.
Average Time of Reaction
with Acid Solution A (s)
Average Time of Reaction
with Acid Solution B (s)
Calcium Carbonate Form
powder
45.2
67.1
chunks
132.1
220.5
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