Homework Help is Here – Start Your Trial Now!
Science
Chemistry
Mg(s) + 2H,0(1) Mg(OH),(s) + H,(g) + 349 kJ -> Calculate how many mL of water at room temperature are required to react all of the magnesium. The density of water at 25° C is 1.00g/mL. Show work here

Mg(s) + 2H,0(1) Mg(OH),(s) + H,(g) + 349 kJ -> Calculate how many mL of water at room temperature are required to react all of the magnesium. The density of water at 25° C is 1.00g/mL. Show work here

Chemistry
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...
See similar textbooks
icon
Related questions
icon
Concept explainers
Question
Scenario 3 At dinnertime, the soldiers we re miles from a fie ld kitchen. They each pulled out a meal pouch, inserted it into a small bag, and added water. Within 15 minutes, the soldiers were eating hot meals, which are the U.S. Army's "Meal, Ready-to-Eat," or MRE, Tatio Each MRE is a main dish within a pouch made of aluminum foil and plastic. In 1985, researchers at the Army's Natick Research, Development, and Engineering Center invented a way to heat MRES using a special "Flameless Ration Heater," or FRH. Each FRH is a plastic sleeve that holds a pad containing metal particles embedded in a polymeric matrix. The metal is an alloy of 90% magnesium and 10% iron. The entire package has a mass of 20.0 g, of which about 8.1 g is magnesium. In the FRH, the water reacts with magnesium in an exothermic reaction The energy released by this reaction warms the meal to 60°C. To speed the reaction, iron was added to the FRH. Both iron and magnesium react readily with warm water but since iron is a less active metal than magnesium, the magnesium first reacts. Earlier models of the FRH used more than 60 mL of water, but the latest version requires only 45 mL. ker notes
Transcribed Image Text:Scenario 3 At dinnertime, the soldiers we re miles from a fie ld kitchen. They each pulled out a meal pouch, inserted it into a small bag, and added water. Within 15 minutes, the soldiers were eating hot meals, which are the U.S. Army's "Meal, Ready-to-Eat," or MRE, Tatio Each MRE is a main dish within a pouch made of aluminum foil and plastic. In 1985, researchers at the Army's Natick Research, Development, and Engineering Center invented a way to heat MRES using a special "Flameless Ration Heater," or FRH. Each FRH is a plastic sleeve that holds a pad containing metal particles embedded in a polymeric matrix. The metal is an alloy of 90% magnesium and 10% iron. The entire package has a mass of 20.0 g, of which about 8.1 g is magnesium. In the FRH, the water reacts with magnesium in an exothermic reaction The energy released by this reaction warms the meal to 60°C. To speed the reaction, iron was added to the FRH. Both iron and magnesium react readily with warm water but since iron is a less active metal than magnesium, the magnesium first reacts. Earlier models of the FRH used more than 60 mL of water, but the latest version requires only 45 mL. ker notes
Background Layout Theme Transition 2 11 II 3. 5.1 1 6 11 1.·7 III I 8. 9. Mg(s) + 2H,0(1) Mg(OH),(s) + H,(g) + 349 kJ Calculate how many mL of water at room temperature are required to react all of the magnesium. The density of water at 25° C is 1.00g/mL. Show work here Answer question here aker notes
Transcribed Image Text:Background Layout Theme Transition 2 11 II 3. 5.1 1 6 11 1.·7 III I 8. 9. Mg(s) + 2H,0(1) Mg(OH),(s) + H,(g) + 349 kJ Calculate how many mL of water at room temperature are required to react all of the magnesium. The density of water at 25° C is 1.00g/mL. Show work here Answer question here aker notes
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 3 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Knowledge Booster
Thermochemistry
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
Chemistry
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry
Chemistry
Chemistry
ISBN:
9781259911156
Author:
Raymond Chang Dr., Jason Overby Professor
Publisher:
McGraw-Hill Education
Principles of Instrumental Analysis
Principles of Instrumental Analysis
Chemistry
ISBN:
9781305577213
Author:
Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:
Cengage Learning
Organic Chemistry
Organic Chemistry
Chemistry
ISBN:
9780078021558
Author:
Janice Gorzynski Smith Dr.
Publisher:
McGraw-Hill Education
Chemistry: Principles and Reactions
Chemistry: Principles and Reactions
Chemistry
ISBN:
9781305079373
Author:
William L. Masterton, Cecile N. Hurley
Publisher:
Cengage Learning
Elementary Principles of Chemical Processes, Bind…
Elementary Principles of Chemical Processes, Bind…
Chemistry
ISBN:
9781118431221
Author:
Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:
WILEY
SEE MORE TEXTBOOKS