Guilty Pleasure Animu Finish Animu Games Important Stuff N stion 4 23.6 g of calcium chloride (110.98) is dissolved in water in a calorimeter. Trose from 25.0°C to 38.7°C. Heat capacity of solution & calorimeter = 1258 J/°C. What is enthalpy change when 1 mol CaCl2 dissolves? Solution process is CaCl2(s) Ca2*(ag) +2CI"(aq), AH=? Answer to 3 significant figures. Do not include units, kJ/mol. Include sign (+ or -). Hint: Use q = -CAT because heat is being released in this reaction. Don't forget to divide by number of moles of calcium chloride used. Selected Answer: [None Given]

Guilty Pleasure Animu Finish Animu Games Important Stuff N stion 4 23.6 g of calcium chloride (110.98) is dissolved in water in a calorimeter. Trose from 25.0°C to 38.7°C. Heat capacity of solution & calorimeter = 1258 J/°C. What is enthalpy change when 1 mol CaCl2 dissolves? Solution process is CaCl2(s) Ca2*(ag) +2CI"(aq), AH=? Answer to 3 significant figures. Do not include units, kJ/mol. Include sign (+ or -). Hint: Use q = -CAT because heat is being released in this reaction. Don't forget to divide by number of moles of calcium chloride used. Selected Answer: [None Given]

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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Macmillan Learning In a constant-pressure calorimeter, 55.0 mL of 0.300 M Ba(OH)₂ was added to 55.0 mL of 0.600 M HCl. The reaction caused the temperature of the solution to rise from 24.10 °C to 28.19 °C. If the solution has the same density and specific heat as water (1.00 g/mL and 4.184J/g °C,) respectively), what is AH for this reaction (per mole H₂O produced)? Assume that the total volume is the sum of the individual volumes. AH = x10 TOOLS kJ/mol H₂O
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When 17.98 g of calcium chloride (CaCl2) is dissolved in 681.87 g of water in a coffee-cup calorimeter at 26.4°C, the temperature increased to 28.4 °C. Assuming that the specific heat of the mixture is the same as the specific heat of pure water (4.184 J/g-°C), calculate the AH (in kJ/mol CaCl2) in the dissolution process. MW of CaCl2 = 110.9g/mol CaCl2 (s) →→ Ca+2 (aq) + 2 CI¯ (aq) Show your complete solution. Express your answer in two decimal places.
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