Experiment $1$

Pre$-$Laboratory Questions

Define and explain the following terms.

a$.$ Combustion reaction

b$.$ Specific heat of water

A student follows the procedure for this experiment and burns a peanut. The peanut weighed $0\mathrm{.}780g$ before combustion and $0\mathrm{.}054g$ after combustion. The temperature change of an aluminum can filled with $200mL$ of water was $15\mathrm{.}3C.($Density of water $=1\mathrm{.}00\frac{g}{m}L)$

a$.$ What is the mass of peanut burned?

b$.$ What is the mass of water in the can?

c$.$ Calculate the amount of energy released when the peanut was burned.

d$.$ Calculate the amount of energy per gram of burned nut $(\frac{J}{g}).$

What two cautions would you expect to take in this experiment?