Computation of Specific Heat for Unknown MetalTrial 1Trial 2Mass of unknown metal (g)21.1821.18Mass of calorimeter cup (g)1.731.73Mass of calorimeter and water (g)47.6346.16Temperature of boiling water bath (°C)99.62100.09Initial temperature of calorimeter water(°C)22.2122.03Final temperature of water and metal (°C)25.9525.92Mass of water (g)Temperature change of water (°C). Do notinclude a negative sign.Heat gained by water (cal). Do not includea negative sign.Heat lost by metal (cal). Do not include anegative sign.Temperature change of metal (°C). Do notinclude a negative sign. Specific heat of metal [cal/(g °C)]Specific heat of metal [J/(g °C)]

To determine the specific heat of metal for two trials.

Answered: Computation of Specific Heat for…

Chemistry

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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

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

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Given is the following information for the reaction of magnesium oxide and magnesium with hydrochloric acid in a coffee cup calorimeter. (Atomic masses : Mg = 24.3, O = 16.0 g/mol, respectively) i Weight of Magnesium Oxide used 0.750 g ii mols of Magnesium Oxide used ? iii ∆Tcalorimeter 3.5°C iv qcalorimeter = Ccal x ∆T [Ccal = 418J(g●°C] ? v qreaction ? i Weight of Magnesium metal used 0.725 g ii mols of Magnesium metal used ? iii ∆Tcalorimeter 22.0°C iv qcalorimeter = Ccal x ∆T [Ccal = 418J(g●°C] ? v qreaction ? H2(g) + ½O2(g) → H2O(l) -285.8 kJ Now, calculate the ∆H for the following reactions in kJ /mol. MgO(s) + 2HCl(aq) → MgCl2(aq) + H2O(l) Mg (s) + 2HCl(aq) → MgCl2(aq) + H2 (g) Using all the above information and data, calculate the ∆H for the following reaction: Mg (s) + ½O2(g) → MgO(s) ∆H = ?
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What is the heat of a reaction, in joules, with a total reaction mixture volume of 68.8 mL if the reaction causes a temperature change of 5.1 °C in a calorimeter? Assume that the reaction mixture has a density of 1.00 g/mL and a specific heat of 4.184 J/g-°C. The calorimeter has a heat capacity of 10.0 J/°C. Type answer: < ВАСК Question 3 of 6 NEXT étv w g88 FA ese FI F2 F6 F7 FB F10 2$ 4. @ 23 & 2 3 5 7 9 W E R T Y P
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Need help with these calculations
Using the equations determine the enthalpy for the reaction
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Part I: Specific Heat of a Known Metal Metal: _______Cd________ Trial 1 Mass of metal 58.953 g Mass of calorimeter NA g Mass of calorimeter + water NA g Mass of water 100.0 g Initial temperature of metal (temperature of boiling water) 100.0 °C Initial temperature of water in calorimeter 22.0 °C Maximum temperature of metal and water from graph 23.0 °C Temperature change of water () 1.0 °C Temperature change of metal () 31.0 °C Heat gained by water () ? J Specific heat of metal ? J/g°C Atomic Mass of Metal: ________?_______g/mol Note: Use this equation and your data: Identity of Metal: ______?_____ ______________ Experimental error: ____?__________________

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Computation of Specific Heat for Unknown Metal Trial 1 Trial 2 Mass of unknown metal (g) 21.18 21.18 Mass of calorimeter cup (g) 1.73 1.73 Mass of calorimeter and water (g) 47.63 46.16