Answer to Question #112770 in General Chemistry for Jonas

Question #112770

Calculate the amount in grams of potassium chloride for it to absorb heat at 450kJ whose H is at 15kJ/mol, water has zero effect in enthalpy change

Expert's answer

Q = n*H

n = Q/H = 450/15 = 30 mol

m = n*M = 30*(39+35.5) = 2235 g

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