Name Chem 1 - Hess's Law Lab Extension was precipitated: 1. A 100. mL solution of 0.35 mol of Ca2+ (aq) was mixed with 0.50 mol of F- (aq) ions and CaF2 (s) Ca2+ (aq) +2 F (aq) → CaF2 (s) The temperature of the solution increased by 10.5°C. What was the enthalpy change for the chemical reaction? What was the enthalpy change for the production of 1 mol of CaF2? Assume that the solution has the same density and specific heat as water. 2. To warm 400.0 grams of water, 0.050 mol of ethanol (C2H5OH) is burned. The water warms from 24.6°C to 65.6°C. What is the heat of the reaction and what is the AH value for the reaction per mole of ethanol burned?
Name Chem 1 - Hess's Law Lab Extension was precipitated: 1. A 100. mL solution of 0.35 mol of Ca2+ (aq) was mixed with 0.50 mol of F- (aq) ions and CaF2 (s) Ca2+ (aq) +2 F (aq) → CaF2 (s) The temperature of the solution increased by 10.5°C. What was the enthalpy change for the chemical reaction? What was the enthalpy change for the production of 1 mol of CaF2? Assume that the solution has the same density and specific heat as water. 2. To warm 400.0 grams of water, 0.050 mol of ethanol (C2H5OH) is burned. The water warms from 24.6°C to 65.6°C. What is the heat of the reaction and what is the AH value for the reaction per mole of ethanol burned?
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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Chem 1 - Hess's Law Lab Extension
was precipitated:
1. A 100. mL solution of 0.35 mol of Ca2+ (aq) was mixed with 0.50 mol of F- (aq) ions and CaF2 (s)
Ca2+ (aq) +2 F (aq) → CaF2 (s)
The temperature of the solution increased by 10.5°C. What was the enthalpy change for the
chemical reaction? What was the enthalpy change for the production of 1 mol of CaF2? Assume
that the solution has the same density and specific heat as water.
2. To warm 400.0 grams of water, 0.050 mol of ethanol (C2H5OH) is burned. The water warms from
24.6°C to 65.6°C. What is the heat of the reaction and what is the AH value for the reaction per
mole of ethanol burned?
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