YOU MUST SUBMIT WORK FOR THIS PROBLEM INTO A SEPARATE ASSIGNMENT. Hot pyrex (450. grams) is placed in 175.0 grams of water (d =1 g/mL) which was at 21.0°C. What was the initial temperature of the pyrex (in °C) if the final temperature of the water and pyrex together was 31.0°C? Specific heat capacity of pyrex = 0.753 J/(g·K); water = 4.18 J/(g•K). The initial temperature is °C (pay attention to the significant figures)
YOU MUST SUBMIT WORK FOR THIS PROBLEM INTO A SEPARATE ASSIGNMENT. Hot pyrex (450. grams) is placed in 175.0 grams of water (d =1 g/mL) which was at 21.0°C. What was the initial temperature of the pyrex (in °C) if the final temperature of the water and pyrex together was 31.0°C? Specific heat capacity of pyrex = 0.753 J/(g·K); water = 4.18 J/(g•K). The initial temperature is °C (pay attention to the significant figures)
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 29
![Content
Bb 27001274
urses/_1137293_1/cl/outline
Remaining Time: 1 hour, 58 minutes, 20 seconds.
* Question Completion Status:
ZHCI(aq) + Mg(OH]2[aq) → MgtI2{aq) + ZH2UM.
The molarity (M) of the HCl is
mole/L
(pay attention to the significant figures)
QUESTION 29
YOU MUST SUBMIT WORK FOR THIS PROBLEM INTO A SEPARATE ASSIGNMENT.
Hot pyrex (450. grams) is placed in 175.0 grams of water (d =1 g/mL) which was at 21.0°C. What was the initial temperature of the pyrex (in °C) if the
final temperature of the water and pyrex together was 31.0°C? Specific heat capacity of pyrex = 0.753 J/(g•K); water = 4.18 J/(g•K).
The initial temperature is
°C
(pay attention to the significant figures)
QUESTION 30
YOU MUST SUBMIT WORK FOR THIS PROBLEM INTO A SEPARATE ASSIGNMENT.
Consider the following reaction:
Fe20(s) + CO(s) 2Fe(s) + CO2(g) AH°rxn =-24.8 kJ
Molar masses (g/mole): Fe20(s) = 159.7; Fe(s) = 55.85; CO(g) = 28.01; CO2(g) = 44.01
How much heat (in kJ) is absorbed in a reaction in which 123,4 grams of Fe(s) is reacted under these conditions?
The heat released in the reaction is
kJ](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F7175647a-f7d1-44ef-aece-5f9ca2e72cc8%2F335e9d68-0834-40ab-9328-088aab93afe9%2Fvglseqx_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Content
Bb 27001274
urses/_1137293_1/cl/outline
Remaining Time: 1 hour, 58 minutes, 20 seconds.
* Question Completion Status:
ZHCI(aq) + Mg(OH]2[aq) → MgtI2{aq) + ZH2UM.
The molarity (M) of the HCl is
mole/L
(pay attention to the significant figures)
QUESTION 29
YOU MUST SUBMIT WORK FOR THIS PROBLEM INTO A SEPARATE ASSIGNMENT.
Hot pyrex (450. grams) is placed in 175.0 grams of water (d =1 g/mL) which was at 21.0°C. What was the initial temperature of the pyrex (in °C) if the
final temperature of the water and pyrex together was 31.0°C? Specific heat capacity of pyrex = 0.753 J/(g•K); water = 4.18 J/(g•K).
The initial temperature is
°C
(pay attention to the significant figures)
QUESTION 30
YOU MUST SUBMIT WORK FOR THIS PROBLEM INTO A SEPARATE ASSIGNMENT.
Consider the following reaction:
Fe20(s) + CO(s) 2Fe(s) + CO2(g) AH°rxn =-24.8 kJ
Molar masses (g/mole): Fe20(s) = 159.7; Fe(s) = 55.85; CO(g) = 28.01; CO2(g) = 44.01
How much heat (in kJ) is absorbed in a reaction in which 123,4 grams of Fe(s) is reacted under these conditions?
The heat released in the reaction is
kJ
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