Dissolving 6.00 g CaCl 2 in 300 mL of water causes the temperature of the solution to

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Dissolving 6.00 g CaCl2 in 300 mL of water causes the temperature of the solution to increase by 3.43 °C. Assume that the specific heat of the solution is 4.18 J/g · K and its mass is 306 g.

(a) Calculate the enthalpy change when the CaCl2 dissolves. Is the process exothermic or endothermic?

(b) Determine ΔH on a molar basis forCaCl(s) HO Ca+ (aq) + 2C1-(aq)

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Chemistry Principles And Practice

ISBN: 9780534420123

3rd Edition

Authors: Daniel L. Reger, Scott R. Goode, David W. Ball

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