-3 http://www.saplinglearning.com/ibiscms/mod/ibis/vi C CHM 1045 General Chemi..

Question

-3 http://www.saplinglearning.com/ibiscms/mod/ibis/vi C CHM 1045 General Chemi... x c Chegg Attempts Score Print Calculator Periodic Tab 14 00 Que on 27 of 28 incorrect 15 00 Map 16 00 In this virtual lab, you will use coffee cup calorimetry to determine the specific heat, c, of a metal. 17 00 Heating the metal Imagine that, in lab, you record the mass of a piece of metal, mmetal, as 18 00 45.00 g 19 00 In the next step of the lab (as shown in the animation to the left) you heat up the piece of metal. 20 00 Play the animation, and record the metal's highest emperature, Tr 21 00 Number 00 84 00 Hot Plat Begin Reset Be sure to check all entries 24 00 In another step of this lab, you record the mass 25 00 Calorimetry experiment of water (mwater) in a coffee cup as 26 00 130.00 What is the initial temperature of the water, Twater1, 27 25 in the coffee cup as shown to the left? Previous 3 Give Up & View Solution Try Again Next I Exit Explanation 28 Copyright 20 2016 Sapling Learning, Inc about us erms of use partners Contact us caree privacy policy 3- T Available From: 2/19/2016 11:00 Al 3/5/2016 11:00 PM Due Date: Points Possible: 100 Grade Category: Graded Description: Policies: CHM 2211 You can check your answers. You can viewsolutions when you comp up on any question You have three attempts per question There is no penalty for incorrect answe O Help with This Topic O Web Help & Videos O Technical Support and Bug Reports 5.33 3/3/2016

Explanation / Answer

1) In the first question, the end point is between 80 and 90. Hence, the answer would be between 80 and 90.

Counting the number of ticks, we get that number to be 7. SInce each tick corresponds to 1 degree C,

the temperature is 87 C

2)Considering the diagram to be for the final phase, Twater2,

each mark corresponds to one degree.

Now, between 20 and 30 there are 9 marks each corresponding to one degree,

Hence, Twater2= 30 - 1 =29 degrees

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