Question

when 1 mole of barium sulfate was dissolved in water it resulted to a H of 0.52 KJ/mol. How much heat is absorbed when 450g if the compound is dissolved in water has zero effect

Answer 1

Q= m(BaSO₄)/Mr(BaSO₄)*H=(450/233)*0.52=1 kJ

Answer: 1kJ of heat is absorbed