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Answer in Organic Chemistry for emily #119303

Author:
April 21st, 2023
  1. Amount of energy absorbed by water:

“q=cmDelta T = 4.186 frac{J}{gtimes ^circ C} times 250.0 g times (36.0 ^circ C-20.5 ^circ C)= 16220.75 J”

2.Moles of solute:

“2.35 g Mg(OH)_2 times (frac{1 mole Mg(OH)_2}{58.32 g Mg(OH)_2})= 0.0403 mol”

3.As the temperature is increased then the reaction is exothermic, then:

“Delta H_{soln}= frac{-q}{n}”

“Delta H _{soln} = frac{-16220.75 J}{0.0403 mol}=-402500 frac{J}{mol}=- 403 frac{kJ}{mol}”

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