Homework Help: chemistry

Posted by Anna on Sunday, November 14, 2010 at 3:59pm.

If I make an ice pack with 750 mL of water, what mass of ammonium chloride must I include to get the temperature to drop from 20 degrees celsius to 5 degrees celsius. The heat of solution of the water and ammonium chloride is 14.8 kJ/mole.

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