Answered: 9. A piece of iron (mass 25.0 g) at 398…

Chemistry: An Atoms First Approach

2nd Edition

ISBN:9781305079243

Author:Steven S. Zumdahl, Susan A. Zumdahl

Publisher:Steven S. Zumdahl, Susan A. Zumdahl

Chapter7: Chemical Energy

Section: Chapter Questions

Problem 109AE: A sample of nickel is heated to 99.8C and placed in a coffee-cup calorimeter containing 150.0 g...

See similar textbooks

Related questions

Concept explainers

Question

100%

In the following question, I used the q=ms(delta T) equation, and q_system=-q_surroundings, with the final temperature of water being the answer I'm solving for. With my current arithmetic I get an answer that's way off. And I think I may have my equation incorrectcly set up somehow, because when I plug in the correct answer to try working backwards, the q_system does not equal the -q_surroundings.

I'm not sure why my equation would be wrong though. Isn't the final temperature the same for both sides of the equation?

9. A piece of iron (mass = 25.0 g) at 398 K is placed in a styrofoam coffee cup containing 25.0 mL of
water at 298 K. Assuming that no heat is lost to the cup or the surroundings, what will the final
temperature of the water be? The specific heat capacity of iron 0.449 J/g°C and water = 4.18 J/g°C.
A) 348 K
B) 308 K
C) 287 K
Heat cap. free. het
9=CAT, C-smemars
D) 325 K S.0, v 04495/9°C [Tf-39ak] = - 25,09*4.18 Jlg°c [Tf-298k]
E) 388 K
Answer: B
, m- 25.09
0-443Tif - 178.702= -4.187f+
25.0m

Expert Solution

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 1 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

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