lab

Module 2 lab 1: coffee and energy Watch the video to get introduced to this lab

To submit each lab and assignment to blackboard: (its all on the video above)

1. Click on the blue box for each assignment or lab.

2. Fill in the yellow boxes. 3. Download each complete lab or

assignment as a pdf (file-download-pdr)

4. Submit to blackboard

How to submit assignments the easy way

module 2 lab 1: coffee problem name:

how much milk at 1 degrees Celsius is needed to reduce the temperature of 250 mL of coffee at 85 degrees Celsius to 75 degrees Celsius? Show a complete solution, using the example on the left as a guide.

hot

cold warm

 

screenshot of “correct “ screen includes calculations and explanation of actions

The details for this lab can be found here: http://chemcollective.org/activities/autograded/115 this worksheet is available here

This lab is summarized below. Fill in the blanks to show your logic for completing this problem.

This problem asks us to calculate how much milk at 1 degrees Celsius is needed to reduce the temperature of 250 mL of coffee at 85 degrees Celsius to 75 degrees Celsius. Here is a visual:

heat = mass x specific heat x change in temperature Q = mcΔT

Ok now you should be able to solve the chemcollective problem.