Purchase Solution

Water and Final Temperature

Not what you're looking for?

Ask Custom Question

Two 20.0-g ice cubes at -14.0 degrees C are placed into 255 g of water at 25.0 degrees C. Assuming no energy is transferred to or from the surroundings, calculate the final temperature of the water after all the ice melts.

heat capacity of H_2O(s) = 37.7 J/(mol*K)
heat capacity of H_2O(l) = 75.3 J/(mol*K)
heat capacity of H_2O = 6.01 J/(mol*K)

ANSWER: __________ degrees C

HINT:
One way to solve this type of problem is to express the total heat exchange as one giant formula. In this case, the final temperature is the only unknown value.

heat needed to warm heat needed to heat needed to warm heat released to cool
40.0 g of ice to 0 ?C + melt 40.0 g of ice + 40.0 g of water to the = 255 g of water to the
final temperature final temperature

Purchase this Solution

Solution Summary

The expert examines water and final temperatures.

Solution Preview

Heat needed to warm 40.0g ice to 0 degrees C: (40/18.0153)*37.7*14=1171.89 J
Heat needed to melt 40.0g ice: ...

Purchase this Solution


Free BrainMass Quizzes
Functional groups in Organic Chemistry

You will be tested on the names of functional groups in Organic Chemistry. It is very important to know the functional groups to understand Organic reactions.

Thermochemistry

The quiz helps in revising basic concepts about thermochemistry.

Organic Chemistry Naming: Alkanes

This is a quiz which is designed to assist students with learning the nomenclature used to identify organic compounds. This quiz focuses on the organic compounds called Alkanes.

Match Elements with their Symbols

Elements are provided: choose the matching one- or two-letter symbol for each element.

General Chemistry - Classification of Matter

This test will assess your knowledge on the classification of matter which includes elements, compounds and mixtures.