1"1(C)Q1()Q2() + Q3() (mST) (mST + CT)

Ccal/NH4NO3Q1(NH4NO3)Q2() + Q3()HmST + CT (1) (1) (250 mL) (50 mL) ( NH4NO3 )250 mL 50.0 mL 3

50 mL 50.0 mL 1015 3

1.0 g/mL 1 cal/g

50.0 mL 34 g NH4NO3(s)

15 30

NH4NO3

50.0 mL NH4NO3(s), Mg(s), MgO(s)1.0