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Get Full Access to Chemistry: The Central Science - 12 Edition - Chapter 19 - Problem 19.13
Get Full Access to Chemistry: The Central Science - 12 Edition - Chapter 19 - Problem 19.13

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# Solved: (a) Give two examples of endothermic processes that are spontaneous. (b) Give an

ISBN: 9780321696724 27

## Solution for problem 19.13 Chapter 19

Chemistry: The Central Science | 12th Edition

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Problem 19.13

(a) Give two examples of endothermic processes that are spontaneous. (b) Give an example of a process that is spontaneous at one temperature but nonspontaneous at a different temperature.

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Chemistry 111 lecture notes (Dr. Patton) 4.5- Concentration  Molarity (M in mol/L)  Equation: M=n/V in Liters. You can rearrange this equation to solve for a variety of applications.  V=n/M  n=M x V  EXAMPLE: How many moles of MgCl are present2in 60.0 ml of .100M MgCl 2 solution Convert ml to Liters- 60.0ml (1L/1000ml)= .060 L Find moles using molarity… n=(.100M mol/LMgCl )(.260L)= .006mol  EXAMPLE: How many grams of KCl are present in 250.0 ml of a .125 M solution of KCl Convert ml to Liters- 250.0ml (1L/1000ml)= .250 L Find mass of KCL- 74.55g Find moles of KCl using molarity of solution…

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