Question

in part 1 of this lab, you will be calculating δrh by conducting constant - pressure calorimetry measurements.
one of the steps you will take is calculating δt of the water inside the test tube and then using the formula qcal = m x cs x δt.
what mass (m) will you be using in the above formula?
select one:
mass of the magnesium strip
mass of the aqueous solution, since we are measuring its temperature using the thermometer

Explanation:

In the formula \( q_{cal}=m\times C_{s}\times\Delta T\), \(m\) represents the mass of the substance whose temperature change \(\Delta T\) is being measured. Here, the temperature change of the water (aqueous solution) is measured. The mass of magnesium strip (\(Mg\)) is not relevant for calculating \(q_{cal}\) using this formula for the water - temperature - change - based calorimetry in this context.

Answer:

Mass of the aqueous solution, since we are measuring its temperature using the thermometer.