O THERMOCHEMISTRY AR 1/5 Calculating specific heat capacity A chemist carefully measures the amount of heat needed to raise the temperature of a 286.0 mg sample of a pure substance from 34.1 °C to 56.7 °C. The experiment shows that 30.4 J of heat are needed. What can the chemist report for the specific heat capacity of the substance? Be sure your answer has the correct number of significant digits. -1 ·K Explanation Check © 2022 McGraw Hill LLC. All Rights Reserved. Terms of Use Privacy Center pe here to search 28°C Mostly cloudy

O THERMOCHEMISTRY AR 1/5 Calculating specific heat capacity A chemist carefully measures the amount of heat needed to raise the temperature of a 286.0 mg sample of a pure substance from 34.1 °C to 56.7 °C. The experiment shows that 30.4 J of heat are needed. What can the chemist report for the specific heat capacity of the substance? Be sure your answer has the correct number of significant digits. -1 ·K Explanation Check © 2022 McGraw Hill LLC. All Rights Reserved. Terms of Use Privacy Center pe here to search 28°C Mostly cloudy

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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What would the final temperature of a 11.081 g sample of a metal be if the sample absorbed 524.9 J of heat and was initially at 20.8 °C? The specific heat capacity of the sample is 0.158 J g¯¹ °C-¹. Your Answer: Answer units
Calculating specific heat capacity A chemist carefully measures the amount of heat needed to raise the temperature of a 839.0 g sample of a pure substance from -3.6 °C to 8.9 °C. The experiment shows that 7.45 kJ of heat are needed. What can the chemist report for the specific heat capacity of the substance? Round your answer to 3 significant digits. -1 ·K Exanation Check 2021 McGraw-Hill Education. All Rights Reserved Terms of Use Privacy Accessib MacBook Pro esc Thank
CTHERMOCAIEMISTRY Solving a basic calorimetry problem thermometer -1 A 54.4 g sample of iron, which has a specific heat capacity of 0.449 J'g contains 150.0 g of water. The temperature of the water starts off at 19.0 °C. When the temperature of the water stops changing ', is put into a calorimeter (see sketch at right) that insulated container it's 22.0 °C. The pressure remains constant at 1 atm. water Calculate the initial temperature of the iron sample. Be sure your answer is rounded to the correct number of significant digits. sample a calorimeter
Maritza Using specific heat capacity to find heat Calculate the energy required to heat 1.50 kg of water from 40.4 °C to 48.9 °C. Assume the specific heat capacity of water under these conditions is 4.18 J g -1 -1 K. Round your answer to 2 significant digits. x10
O THERMOCHEMISTRY Using specific heat capacity to find temperature change A chemical reaction takes place inside a flask submerged in a water bath. The water bath contains 7.80 kg of water at 23.4 °C. During the reaction 106. kJ of heat flows out of the bath and into the flask. -1 Calculate the new temperature of the water bath. You can assume the specific heat capacity of water under these conditions is 4.18 J'g ''K '. Be sure your answer has the correct number of significant digits. ?
Find the heat of metal and the specific heat capacity (below are the values) Mass of metal 23.2038g volume of water 100.0 mL Initial temperature of water 25.01 degrees Celcius Initial temperature of Metal 200.00 degrees celcius Max final temperature of water and metal 28.75 degrees celcius mass of water 99.71g change in temperature for water 3.74 degrees celcius Heat of water 156 Joules Change in temperature for metal -171.25 Degrees celcius
A 0.2415 g sample of solid magnesium is burned in a constant-volume bomb calorimeter that has a heat capacity of 3024 The temperature increases by 1.978 °C. Part 1 of 2 kJ Calculate the heat associated with the burning of Mg in Be sure your answer has the correct number of significant digits. g Part 2 of 2 kJ g ☐ x10 ☑ Calculate the heat associated with the burning of Mg in kJ mol Be sure your answer has the correct number of significant digits. KJ mol x10 ☑
A chemical reaction takes place inside a flask submerged in a water bath. The water bath contains 5.10 kg of water at 36.6 °C. During the reaction 120. kJ of heat flows out of the flask and into the bath. - 1 - 1 Calculate the new temperature of the water bath. You can assume the specific heat capacity of water under these conditions is 4.18 J-g K . Be sure your answer has the correct number of significant digits.
A piece of metal weighing 146.7 g was heated from 32.0 °C to 56.2 °C. If the amount of heat needed was 1363.3 J, calculate the specific heat of the metal. What is the identity of the metal? 20 Specific Heats of Selected Metals Smetal, J/g-°C Metal 0.901 Smetal, J/g-°C 0.449 Metal Al Fe Cu 0.384 Ni 0.444 Si 0.711 Sn 0.226 Zn 0.389 Mn 1.02
Review | Constants | Periodic Table To determine whether a shiny gold-colored rock is actually gold, a chemistry student decides to measure its heat çapacity. She first weighs the rock and finds it has a mass of 4.7 g. She then finds that upon absorption of 52.7 J of heat, the temperature of the rock rises from 25 °C to 57 °C. Find the specific heat capacity of the substance composing the rock. gh Expréss the specific heat capacity in joules per gram-Celsius to two decimal places. ? J Cs = g.°C Submit Request Answer Part B Complete previous part(s) Part C A 55.0 g aluminum block initially at 27.5 °C absorbs 725 J of heat. What is the final temperature of the aluminum? Express your answer in degrees Celsius to one decimal place. VO AEO T = P Pearson °C . All rights reserved. Terms of Use | Privacy Policy Permissions Contact Us |
You are given 50g of an unknown metal. You apply 6000J of energy to the metal, raising its temperature from 25°C to 955°C. What is the specific heat of the metal? ______ J/g°C After calculating the specific heat in J/g°C, What is the identity of the metal? Metal Specific Heat (J/g°C) Metal Specific Heat (J/g°C) Magnesium 1.02 Silver 0.24 Aluminum 0.90 Tin 0.21 Potassium 0.75 Lead 0.16 Calcium 0.65 Gold 0.129
thermometer A 50.6 g sample of aluminum, which has a specific heat capacity of 0.897 J•g right) that contains 250.0 g of water. The temperature of the water starts off at 22.0 °C. When the temperature of the water stops changing it's 25.0 °C. The pressure remains constant at 1 atm. -1.°C 1 is put into a calorimeter (see sketch at insulated container water Calculate the initial temperature of the aluminum sample. Be sure your answer is rounded to the correct number of significant digits. sample- a calorimeter