I suggest you draw, or find online, a simple diagram of apparatus to perform such an experiment.
Think about each piece of equipment to understand its role in the reaction
Think about how the chemical equation and the relevant enthalpy equations allow you to calculate the amount of heat/enthalpy the reaction is generating.
Think about inaccuracies in measurement and heat losses that can occur during the experiment, how that affects the accuracy of the calculated result and think how to modify the apparatus to improve the accuracy or minimize lossess leading to inaccuracies.
Clive