A sample of magnesium metal will combust completely in air

Reference no: EM13345741

Calorimetry is used to find ?H for the reaction Ba2+(aq) + SO42-(aq) → BaSO4(s). When 1.00 L of 1.00 M Ba(NO3)2 is mixed with 1.00 L of 1.00 M Na2SO4, the system temperature changes from an initial value of 25°C to a final value of 28.1°C.

Assuming that the calorimeter absorbs a negligible amount of heat, that the specific heat capacity of the solution is 4.18 J/(g K), and that the density of the final solution is 1.0 g/mL, calculate ?H per mole BaSO4 formed.

A sample of magnesium metal will combust completely in air according the following reaction:

Mg(s) + 1/2O2(g) → MgO(s)

?Hcomb = ??

Reference no: EM13345741

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