Data Table 1: Heats of Solution, ΔHsoln Substance Volume Mass of Initial Final Endothermic or ΔT of water solid Temp. Temp. (final Exothermic Process? – (mL) (g) (°C) (°C) initial) Ammonium chloride Ammonium nitrate Sodium chloride Sodium nitrate Sodium hydroxide Calcium chloride Calcium nitrate PART II: HEATS OF REACTION, ΔHrxn Design a data table to record all the observations and any measurements of your metal + acid combinations. V. ANALYSIS PART I: HEATS OF SOLUTION, ΔHsoln 1. For each of the salts listed in Data Table 1, calculate the for its dissolving process and record the ΔHsoln value in Data Table 3. You may assume the density of water is 1.0 g/mL and that the specific heat for the solution is the same as water. Be sure to include an appropriate sign on your value. ΔHsoln 2. Calculate the energy per gram of salt dissolved. Data Table 1: Heats of Solution, ΔHsoln Substance Mass of water + salt qsoln J/g of salt ΔT ΔHsoln (g) (°C) (J) (kJ/mol)
Data Table 1: Heats of Solution, ΔHsoln Substance Volume of water (mL) Mass of solid (g) Initial Temp. (°C) Final Temp. (°C) ΔT (final – initial) Endothermic or Exothermic Process? Ammonium chloride Ammonium nitrate Sodium chloride Sodium nitrate Sodium hydroxide Calcium chloride Calcium nitrate PART II: HEATS OF REACTION, ΔHrxn Design a data table to record all the observations and any measurements of your metal + acid combinations. V. ANALYSIS PART I: HEATS OF SOLUTION, ΔHsoln 1. For each of the salts listed in Data Table 1, calculate the ΔHsoln for its dissolving process and record the value in Data Table 3. You may assume the density of water is 1.0 g/mL and that the specific heat for the solution is the same as water. Be sure to include an appropriate sign on your ΔHsoln value. 2. Calculate the energy per gram of salt dissolved. Data Table 1: Heats of Solution, ΔHsoln Substance Mass of water + salt (g) ΔT (°C) qsoln (J) J/g of salt ΔHsoln (kJ/mol)