In the laboratory a "coffee cup" calorimeter, or constant pressure calorimeter, is frequently used to determine the specific heat of a solid, or to measure the energy of a solution phase reaction. Thenmn A student heats 62.11 grams of zinc to 98.17 °C and then drops it into a cup containing 75.89 grams of water at 23.33 °C. She measures the final temperature to be 28.77 °C. The heat capacity of the calorimeter (sometimes referred to as the calorimeter constant) was determined in a separate experiment to be 1.83 J/°C. Assuming that no heat is lost to the surroundings calculate the specific heat of zinc. Specific Heat (Zn) = | J/g°C. Subenit Answer Retry Entire Group 8 more group atlermpts remaining

In the laboratory a "coffee cup" calorimeter, or constant pressure calorimeter, is frequently used to determine the specific heat of a solid, or to measure the energy of a solution phase reaction. Thenmn A student heats 62.11 grams of zinc to 98.17 °C and then drops it into a cup containing 75.89 grams of water at 23.33 °C. She measures the final temperature to be 28.77 °C. The heat capacity of the calorimeter (sometimes referred to as the calorimeter constant) was determined in a separate experiment to be 1.83 J/°C. Assuming that no heat is lost to the surroundings calculate the specific heat of zinc. Specific Heat (Zn) = | J/g°C. Subenit Answer Retry Entire Group 8 more group atlermpts remaining

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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Thermometer In the laboratory a "coffee cup" calorimeter, or constant pressure calorimeter, is frequently used to determine the specific heat of a solid, or to measure the energy of a solution phase reaction. Stiring md A student heats 63.29 grams of nickel to 97.88 °C and then drops it into a cup containing 76.34 grams of water at 21.12 °C. She measures the final temperature to be 27.55 °C. The heat capacity of the calorimeter (sometimes referred to as the calorimeter constant) was determined in a separate experiment to be 1.60 J/°C. Water Assuming that no heat is lost to the surroundings calculate the specific heat of nickel. Metal- sample at Specific Heat (Ni) = J/g°C. 2003 Thomwan-drookaCole ot pt Submit Answer Try Another Version 3 item attempts remaining Previous Next Save and Exit nt Cengage Learning | Cengage Technical Support MacBook Pro
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In the laboratory a "coffee cup" calorimeter, or constant pressure calorimeter, is frequently used to determine the specific heat of a solid, or to Thermometer measure the energy of a solution phase reaction. Stirring rod A student heats 64.79 grams of iron to 97.64 °C and then drops it into a cup containing 83.33 grams of water at 20.56 °C. She measures the final temperature to be 26.59 °C. The heat capacity of the calorimeter (sometimes referred to as the calorimeter constant) was determined in a separate experiment to be 1.63 J/°C. Water Assuming that no heat is lost to the surroundings calculate the specific heat of iron. Metal sample Specific Heat (Fe) = J/g°C. 2000 Thomson-BrooksCole
A coffee-cup calorimeter contains 150.0 g of water at 25.3 °C. A 124,0-g block of copper metal is heated to 100.4 °C by putting. it in a beaker of boiling water. The specific heat of Cu(s) is 0.385 3/g K. The Cu is added to the calorimeter, and after a time the contents of the cup reach a constant temperature of 30.2 °C. Y Part A Determine the amount of heat, in J, lost by the copper block. 195] ΑΣΦ xa X √x √x 90 Submit X Incorrect; Try Again; 5 attempts remaining. The correct answer does not depend on: 10. Part B Previous Answers Request Answer 911,0 Submit VAX LXI Request Answer Determine the amount of heat gained by the water. The specific heat of water is 4.18 J/g-K. ? ? J X.10⁰ * KE J
A student mixed 50.0 mL of water containing 0.010 moles of HCI (weighing 50.0 g) with 60.0 mL of water containing 0.012 moles of NaOH (weighing 60.0 g) in a coffee cup calorimeter. Both solutions were initially at 25.00°C, but after reaction upon mixing the temperature rose to 26.20°C. The specific heat of the solution is the same as that of water, 4.18 J/g °C, and the calorimeter has a heat capacity of 35 J/°C. The reaction is shown below. (a) How much heat is produced in the reaction? (b) How much heat is produced if one mole of water is formed in this chemical reaction? HCl(aq) + NaOH(aq) → NaCl(aq) + H20(l)
Acetylene, C,H2, is used in welding torches. It releases a lot of energy when burned in oxygen. The combustion of one gram of acetylene releases 48.2 kl_ A-0.750-gram sample of acetylene is burned in a bomb calorimeter (heat capacity = 1.117kJ/°C) that contains 800.0 g of water. The final temperature of the bomb and water after combustion is 35.2°C. What is the initial temperature of the bomb and water?
Acetylene, C,H,, is used in welding torches. It releases a lot of energy when burned in oxygen. The combustion of one gram of acetylene releases 48.2 kJ. A 0.750-gram sample of acetylene is burned in a bomb calorimeter (heat capacity = 1.117kJ/°C) that contains 800.0 g of water. The final temperature of the bomb and water after combustion is 35.2°C. What is the initial temperature of the bomb and water?
a 30.0 g sample of chromium is heated to 100.0°C in a boiling water bath. the sample is added to a calorimeter charged with 45.0 mL of water at 34.1 °C. the final temp of the calorimeter contents is 38.5 °C. calculate the specific heat of chromium
In the laboratory a "coffee cup" calorimeter, or constant pressure calorimeter, is frequently used to determine the specific heat of a solid, or to Thermometer measure the energy of a solution phase reaction. Stirring rod A student heats 65.13 grams of copper to 98.95 °C and then drops it into a cup containing 84.76 grams of water at 23.02 °C. She measures the final temperature to be 27.86 °C. The heat capacity of the calorimeter (sometimes referred to as the calorimeter constant) was determined in a separate experiment to be 1.60 J/°C. Water- Assuming that no heat is lost to the surroundings calculate the specific heat of copper. Metal sample Specific Heat (Cu) = J/g°C. 2000 Thomson-BrooksCole
A chemist measures the energy change AH during the following reaction: 2 H₂O(l) → 2 H₂(g) + O₂(g) ΔΗ= 572. kJ Use the information to answer the following questions. This reaction is... Suppose 64.5 g of H₂O react. Will any heat be released or absorbed? If you said heat will be released or absorbed in the second part of this question, calculate how much heat will be released or absorbed. Round your answer to 3 significant digits. O endothermic. O exothermic. O Yes, absorbed. O Yes, released. O No. 0 kJ x10 Start over
You want to determine the heat capacity of an unknown metal sample in order to help identify it. To do this, you decide to perform a coffee cup calorimetry experiment. The steps you performed were as follows: 1. Placed a 31.18 g piece of the metal in a boiling water bath at 98.1 °C 2. After the metal has had enough time to heat up, the hot metal is transferred to a coffee cup calorimeter containing 55.22 g of water. 3. The initial temperature of the coffee cup water was 23.06 °C and the final temp 33.66 °C.
10 A student heats 84.17 mL of water to 95.27°C using a hot plate. The heated water is added to a calorimeter containing 73.92 mL of cold water. The water temperature in the calorimeter rises from 2.15°C to 37.48°C. The specific heat capacity of water is 4.184 J and the density of water is g. °C 1.00 mL Assuming that heat was transferred from the hot water to the cold water and the calorimeter, determine the heat capacity of the calorimeter. J Heat capacity of calorimeter = °C