What data is missing to complete the calculations for heat change and titration analysis?

The provided image contains several questions, but crucial data is missing to complete them.

• c. Calculate the heat change for the reaction. To calculate the heat change ($Q$), we use the formula $Q = mc\Delta T$, where $m$ is the mass of the mixture, $c$ is the specific heat capacity, and $\Delta T$ is the temperature change. The specific heat capacity ($c = 4.2 \text{ J/kg/K}$) and density ($1 \text{ g/cm}^3$) are given. However, the mass of the mixture and the temperature change ($\Delta T$) are not provided in this image. These values would typically come from a previous part of the experiment (e.g., Procedure A or a temperature vs. time graph).

• PROCEDURE B and subsequent calculations (i, ii, iii, iv). The table for titrations (Table 2) is empty. To perform calculations i, ii, iii, and iv, the following data is required:

  • Final burette readings for titrations 1, 2, and 3.
  • Initial burette readings for titrations 1, 2, and 3.
  • Concentration of sodium hydroxide (D), which is used in the burette.

  Without these values, it is impossible to:

  • i. Calculate the average volume used.
  • ii. Calculate the number of moles of sodium hydroxide used.
  • iii. Calculate the number of moles of hydrochloric acid in 25cm³ of solution C.
  • iv. Calculate the number of mole of hydrochloric acid in 250cm³ of solution C.

Please provide the missing temperature data (for part c) and the burette readings along with the concentration of sodium hydroxide (for Procedure B) so I can help you solve these problems.