CH-1222

Exothermic and endothermic reactions

Chemistry · Secondary 4 · Easy · Exothermic and endothermic reactions

A student mixes 25.0 cm

^3

of 1.00 mol/dm

^3

hydrochloric acid with excess magnesium. The temperature of the solution rises by 6.5

^\circ

C. Assume the mass of solution is 25 g and its specific heat capacity is 4.18 J g

^{-1}

^\circ

^{-1}

. Calculate the heat energy released.

Loading problem…