Question

A 57.1-g piece of zinc (c = 0.388 J/g · °C), initially at 285.8 °C, is added to 155.3 g of a liquid, initially at 22.1 °C, in an insulated container. The final temperature of the metal–liquid mixture at equilibrium is 36.7 °C. What is the identity of the liquid? Neglect the heat capacity of the container. a. hexane (c = 2.27 J/g · °C) b. water (c = 4.18 J/g · °C) c. acetone (c = 2.15 J/g · °C) d. ethanol (c = 2.43 J/g · °C) e. methanol (c = 2.53 J/g · °C)

Name: a 571 g piece of zinc c 0388 jg c initially at 2858 c is added to 1553 g of a liquid initially at 221 c in an insulated container the final temperature of the metalliquid mixture at equilibrium is 367
Uploaded: 2023-11-29T04:24:35-08:00
Duration: 2 min 56 s
Channel: Chareen Guzman
Description: a 571 g piece of zinc c 0388 jg c initially at 2858 c is added to 1553 g of a liquid initially at 221 c in an insulated container the final temperature of the metalliquid mixture at equilibrium is 367

          A 57.1-g piece of zinc (c = 0.388 J/g · °C), initially at 285.8 °C, is added to 155.3 g of a liquid, initially at 22.1 °C, in an insulated container.  The final temperature of the metal–liquid mixture at equilibrium is 36.7 °C.  What is the identity of the liquid?  Neglect the heat capacity of the container.
a.
hexane (c = 2.27 J/g · °C)

b.
water (c = 4.18 J/g · °C)

c.
acetone (c = 2.15 J/g · °C)

d.
ethanol (c = 2.43 J/g · °C)

e.
methanol (c = 2.53 J/g · °C)

Added by Angel D.

General Chemistry: Principles and Modern Applications

Ralph H. Petrucci, F. Geoffrey Herring,… 11th Edition

Chapter 7

Instant Answer

Solved by Expert Chareen Guzman

11/29/2023

Step 1

This is based on the law of conservation of energy which states that energy cannot be created or destroyed, only transferred. The formula for heat transfer is q = mcΔT, where q is the heat transferred, m is the mass, c is the specific heat capacity, and ΔT is the Show more…

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A 57.1-g piece of zinc (c = 0.388 J/g · °C), initially at 285.8 °C, is added to 155.3 g of a liquid, initially at 22.1 °C, in an insulated container. The final temperature of the metal–liquid mixture at equilibrium is 36.7 °C. What is the identity of the liquid? Neglect the heat capacity of the container. a. hexane (c = 2.27 J/g · °C) b. water (c = 4.18 J/g · °C) c. acetone (c = 2.15 J/g · °C) d. ethanol (c = 2.43 J/g · °C) e. methanol (c = 2.53 J/g · °C)