Ask Question + 100. For the temperature change of water, simply subtract the initial temperature of water from the final temperature of your mixture (which is your maximum calorimeter temperature) Temperature Change of Water = 29.0 - 18.0 = 11.0 o C; This is the same for the metal: Temperature Change of Metal = 99.7 - 29.0 = 70.7 o C Chemistry-1 Lab: Specific Heat Page 2 Procedure: 1. 2418 kg 45°C mass of water mo temperature of water Tно Tice temperature of ice temperature at equilibrium change in temperature of water change in temperature of ice change in temperature of melted ice Ty 25°C 20°C ΔTice 0°C ATmeltedice 25°C 3015kg 042ka ed mass of inner cup, water, and melted ice Mtotal mass of ice Mice Also don't forget the place a negative sign in front of the equation as I did above. Refer to the specific heat capacity values given in Table 17.5 for the water, aluminum can, and stainless steel stirrer. This lesson builds on the previous lessons in the unit where students have already learned about Page 4/24 This is what confuses most students. Assume no heat is lost to the surroundings. Test tube, large 9. What are the units used for the ideal gas law? The displacement of water gives the volume and thus mass of the metal: #"34.0 - 25.0 mL" xx "2.97 g"/"mL" = "26.73 g"#. 292 LAB 17. PART 1: Specific Heat of an Unknown Metal. This experiment was conducted to identify a quantity of unknown metal using calorimeter and conservation of heat principles and determine specific heat of metals. 4 Answers. No hazardous chemicals are used . Show your calculations and record Ly in Table 17.4. Join Yahoo Answers and get 100 points today. View desktop site, 292 LAB 17. In order to calculate the specific heat capacity of the metal, a large mass of metal will be heated to close to 100 C and quickly transferred to a known quantity of water in the calorimeter. Join. awais salman. but del bas ofibeca de tot Table 17.1: Data for Specific Heat Capacity Quantity Symbol Data mass of unknown metal cylinder m. 1 mass of inner cup mass of inner cup and water mass of water mo mass of stirrer mg 0177 kg 1.081 kg MA+H₂0 1911 kg 1101kg 0301 kg 22°C 104°C T, 24°C AT, -80°C ATH, I 2°C temperature of water TH, temperature of metal cylinder temperature at equilibrium change in temperature of metal cylinder change in temperature of water. ... Get your answers by asking now. SPECIFIC AND LATENT HEATS 17.6 Calculations 17.6.1 Calculate the specific heat capacity of the unknown metal. In addition, we will study the effectiveness of different calorimeters. Rearrange the formula #Q=mcDeltaT# to find #c# of the metal. The purpose of this lab experiment is to measure the specific heat capacity of unknown metal samples and also to determine the latent heat of fusion of water. In this lesson students design a lab to determine the identity of an unknown metal through using specific heat calculations. it is given in literature u can google it. Refer to the specific heat capacity values given in Table 17.5 for the water, aluminum can, and stainless steel stirrer. The specific heat of an … Answer Save. Fill … Mass of cup 4.64, Both 9.28 289.32g Mass of both cup and water Mass of water 280.04 Initial temperature of pure water 29°C Final temperature of water 30°C Initial Temperature of water with metal 94 You transfer the metal as quick as possible to prevent heat loss to the environment When you stir do not let the rod touch the bottom of the cup Specific Heat … Get calorimeter cup. Heat will flow from the metal into the water, raising the water temperature. where #C# is the constant-pressure specific heat capacity in #"J/g"^@ "C"#, #m_i# the mass, and #DeltaT# the change in temperature in #""^@ "C"#. 0 0. What is the specific heat of the unknown metal sample? How do you calculate the ideal gas law constant? How does Charle's law relate to breathing? Terms & © 2003-2021 Chegg Inc. All rights reserved. 17.6.3 Table of Known Specific Heat Capacities Table 17.5: Specific Heat Capacities Material Specific heat capacity C at 20°C in cal/(g.°C) 0.214 Aluminum, Al Brass, 72%Cu, 28%Zn Bronze, 88%Cu, 12%Sn 0.094 0.104 Copper, Cu 0.0921 Gold, Au 0.0312 Iron, pure, Fe 0.107 Lead, Pb 0.0306 Silver, Ag 0.0558 Steel 0.113 Tin, Sn 0.0542 Zinc, Zn 0.0925 Water, H2O 1.00 Ice, at -5°C 0.50 Balance 4.Calorimeter 5. 9.1 Introduction Heat is a form of energy that is transferred between objects with different temperatures. #Q_w=(25.0 g)(4.181 J/(g*°C))(15.6°C)# Thermometer 11. Favorite Answer. Introduction When a substance is heated, the motion of its individual particles increases, resulting in an increase in temperature. The metal is heated to a temperature of 173 °C and placed in a graduated cylinder filled with 25.0 mL of water at 25.0 °C. #Q_w=1630.59 J#. How do you find density in the ideal gas law. I need help with a lab report for specific heat. Privacy Table 17.4: Calculated Latent Heat of Fusion Quantity Symbol Results latent heat of fusion of water Download Ebook Specific Heat Of Metal Lab Answers Substance Specific Heat of a Metal Lab - YouTube In this lesson students design a lab to determine the identity of an unknown metal through using specific heat calculations. Now, Cp is your unknown since you’re using Q from #1. Place the beaker of water on a hot plate. LATENT HEAT OF FUSION OF WATER 291 17.5 Latent Heat of Fusion of Water Table 17.2: Data for Latent Heat of Fusion Quantity Symbol Data mass of inner cup MA mass of stirrer ms mass of inner cup and water m Al+H,0 1.0177ka. Luis Narvaez‎ > ‎Chemistry‎ > ‎Lab 2- Specific Heat‎ > ‎ 1. The specific heat of water is known. Use this table of specific heats to determine the identity of your metal. Specific Heat of Water & Metals: Physics Lab This lab will help you to be able to explain what specific heat is and find the specific heat of a metal using household objects. CALCULATIONS 293 17.6.2 Calculate the latent heat of fusion of ice. Paper towels 12. Metal Specific Heat (J/goC) Aluminum 0.900 Bismuth 0.126 Tin 0.226 How do I determine the molecular shape of a molecule? basically the teacher gave us each a cube of unknown metal and we had to figure out what it was using the specific heat. 0301kg .2595kg . $$c=0.46 J/(g*°C)$$ Explanation: Write down given information for both substances (mass, specific heat, change in temperature) For Water : $$m = 25.0 g$$ $$c = 4.181 J/(g*°C)$$ … 292 LAB 17. The temperature changes of the water, and of the metal, can be measured, as can the mass of the water and the mass of the metal. Tap water P r ocedure 1. Answers Lab 22 Specific Heat Of Metals Answers This is likewise one of the factors by obtaining the soft documents of this lab 22 specific heat of metals answers by online. Table 17.3: Calculated Specific Heat Capacity Quantity Symbol Results specific heat capacity of the unknown metal Calorimetric Lab - Specific Heat LAB Name _____ Materials 1.Unknown metal 3. How do I find the specific heat of an unknown metal? Beaker 6. Use these values along with your data and Eqs. around the world. 17.6. Use the formula #Q=mcDeltaT# to find the change in energy in water. Part of NCSSM CORE collection: This video shows the collection of data to determine the specific heat of a metal. Source(s): AS. Calculate the specific heat of the substance using the answer from number 1 and the equation in the Introduction. Cp of 1st substance Cp for 2nd substance Q … 17.5. This lesson builds on the previous lessons in the unit where students have already learned about specific heat capacity and have performed several calorimetry experiments including finding the heat of fusion of ice, the calories in a Cheeto, the … The identity of the metal can be guessed from . Use these values along with your data and Eqs. CHEM 139 Lab Guide Page 1 Experiment 9 Experiment 9 Specific Heat Capacities of Metals The purpose of this experiment is to identify two unknown metal samples based on physical properties. 1 decade ago. Question: Data And Lab Submission - Energy And Specific Heat Energy And Specific Heat Are You Completing This Experiment Online? Turn the hot plate on high, begin boiling. Download Ebook Specific Heat Of Metal Lab Answers Specific Heat Of Metal Lab Answers As recognized, adventure as well as experience nearly lesson, amusement, as capably as concurrence can be gotten by just checking out a books specific heat of metal lab answers along with it is not directly done, you could say you will even more in relation to this life, around the … Write down given information for both substances (mass, specific heat, change in temperature), #DeltaT = T_(fi nal)-T_(i nitial) = 40.6°C - 25°C = 15.6°C#, #DeltaT = T_(fi nal)-T_(i nitial) = 40.6°C - 173°C = - 132.4°C#. 17.1 and 17.3, and solve for the specific heat capacity of the unknown metal. Remember that they both finish at the same temperature. Use these values along with your data and Eqs. Relevance. Atomic mass = 26 / (specific heat) Safety . Research Question: ... and the hypothesis was as followed “if the density and specific heat of an unknown metal was determined, then the metal (could/could not) be identified. Choose the metal with the specific heat that is closest to your experimental value. 2. Yes Specific Heat Of An Unknown Metal Identification Number Of Unknown Metal 4 Mass Of Unknown Metal (g) 20.60 Mass Of Calorimeter Cup (g) 1.83 Masses And Temperatures For Two Trials Trial 1 Trial 2 Mass Of Calorimeter And Water … Therefore, assuming the specific heat capacity of water stays constant in the temperature range, and that its density is that at #40.6^@ "C"#: #color(blue)(C_m) = -(m_wC_w(T_f - T_w))/(m_m(T_f - T_m))#, #= -("25.0 mL" xx "0.9919880 g"/"mL" cdot "4.184 J/g"^@ "C" cdot (40.6^@ "C" - 25.0^@ "C"))/("26.73 g" cdot (40.6^@ "C" - 173^@ "C"))#, 17282 views The specific heat of aluminum was determined to be 0,19 cal/g C. The accepted value for aluminum is 0.22 cal/g 0 C, which is a 13.6 % error. Lv 6. Record the mass carefully to two decimal places. Since only one trial was performed Using this data, the specific heat of the metal can be calculated using equation (3). After the system has reached thermal equilibrium, the volume in the cylinder is read at 34.0 mL, and the temperature is recorded as 40.6 °C. 17.1, 17.4, and 17.8, and solve for the latent heat of fusion for water. Test tube holder 7. An irregular lump of an unknown metal has a measured density of 2.97 g/mL. 1. | Hot plate 10. You might not require more times to spend to go to the books introduction as well as search for them. SPECIFIC AND LATENT HEATS 17.6 Calculations 17.6.1 Calculate the specific heat capacity of the unknown metal. They both reach the same thermal equilibrium temperature, so. Re-write your unknown number here: _____ Your unknown metal is one of the metals in the table below. Record the mass of metal 3. Show your calculations and record in Table 17.3. Where To Download Specific Heat Of Metal Lab Answers Specific Heat Of Metal Lab Answers Thank you categorically much for downloading specific heat of metal lab answers.Maybe you have knowledge that, people have look numerous period for their favorite books once this specific heat of metal lab answers, but stop stirring in harmful downloads. Chemistry in the Laboratory-James M. Postma 2004-03-12 This clearly written, class-tested manual has long given students hands-on experience covering all the essential topics in general chemistry. You might not require more get older to spend to go to the books introduction as competently as search for them. Research Question and Hypothesis. Trending Questions. LAB FOUR Specific Heat of a Metal 1 Name Lab Partner(s) Section Date Specific Heat of a Metal Objective In this experiment you will use calorimetry to determine the specific heat of a metal. The specific heat of the unknown metal will be used to estimate its atomic mass. Specific Heat of a Metal Lab - YouTube Specific Heat of Metals Lab Experiment. To do this you will use a calorimeter – in this lab, that’s a Styrofoam cup. Grad cylinder 8. the Law of Dulong and Petit, stating that the atomic mass of a solid element equals 26 divided by the specific heat, ± 10%. I just did a specific heat of a metal lab, here was the steps. Problem Statement: so we did an experiment. Fill a large beaker approximately half full of water. Specific Heat Of Metal Lab Answers|courierbi font size 12 format This is likewise one of the factors by obtaining the soft documents of this specific heat of metal lab answers by online. (3) specific heat water X mass water X T water = specific heat metal X mass metal X T metal. This (#Q_w#) is the amount of energy the water gained, so this means the metal lost the same amount(#-Q_m#), according to the law of conservation of energy. The specific heat capacity of water is 4.184 J/g((C. In this lab you will be measuring the specific heat of an unknown metal by measuring the amount of heat it transfers to a known amount of water. Merely said, the specific heat of metal lab answers is universally compatible as soon as any devices to read. Refer to the specific heat capacity values given in Table 17.5 for the water, aluminum can, and stainless steel stirrer.
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