a reaction, 0.700g of Ca is added to 75.0mL of 1.0M HCl. Once the reaction is completed as evidenced by the temperature change, the temperature of the solution of HCl had risen from 23.2OC to 88.2OC. Ca(s) + 2HCl(aq) Ca+2(aq) + H2(g) a. How many moles of Ca was present? b. What is the change in T of the mixture? c. What was the amount of heat gained by the solution of HCl?
a reaction, 0.700g of Ca is added to 75.0mL of 1.0M HCl. Once the reaction is completed as evidenced by the temperature change, the temperature of the solution of HCl had risen from 23.2OC to 88.2OC. Ca(s) + 2HCl(aq) Ca+2(aq) + H2(g) a. How many moles of Ca was present? b. What is the change in T of the mixture? c. What was the amount of heat gained by the solution of HCl?
Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter13: The Chemistry Of Solutes And Solutions
Section: Chapter Questions
Problem 124QRT
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In a reaction, 0.700g of Ca is added to 75.0mL of 1.0M HCl. Once the reaction is completed as evidenced by the temperature change, the temperature of the solution of HCl had risen from 23.2OC to 88.2OC.
Ca(s) + 2HCl(aq) Ca+2(aq) + H2(g)
a. How many moles of Ca was present?
b. What is the change in T of the mixture?
c. What was the amount of heat gained by the solution of HCl?
d. What was the amount of heat lost by the reaction?
e. What was the heat of reaction per mole of Ca in units of J/mol?
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