Calorimetry: Heat of Reaction Assignment help

Name: Lab Partner Name: Lab Section Number: Experiment Title: Due Date: GENERAL INSTRUCTIONS The entire report should be typed (handwritten portions will NOT be graded). Please organize your report as shown below. You and your lab partner may not work together on the data analysis, or turn in the same work or answers to questions. If you need help with calculations, you may ask for help from your instructor or the tutoring center. DATA & CALCULATIONS Part B: Show typed calculations for the following values: mhot, ∆Thot, qhot, mcool, ∆Tcool, qcool, qcal, ∆Tcal, and Ccal. Create a table of just the calculated values listed above, displaying each value with proper units, mathematical sign and correct number of significant figures. Part C: Show one set of typed calculations for the following values: msoln, ∆Tsoln, qsoln, qcal, qneut, mole of the limiting reactant and molar qneut. If you performed multiple trials, only show calculations for one trial. Create a table of just the calculated values listed above, displaying each value with proper units, mathematical sign and correct number of significant figures. If you performed more than one trial, report the values for all trials in this table, as well as the average molar qneut. QUESTIONS – All answers should be typed and given in complete sentences unless otherwise indicated. If some of the hot water evaporated during the heating process in part B, would that cause the calculated value of Ccal to be too large, too small, or unchanged in magnitude? Explain your reasoning. Write the chemical equation for the reaction in part C and give the molar heat of reaction. Based on the data, is the reaction in part C exothermic or endothermic? Explain your answer. As part of your answer, explicitly state from where and to where the heat flowed during the reaction. For each of the following components from part C, indicate whether they are part of the a. b. c. d. e. f. system or the surroundings. Styrofoam cups Thermometer Hydrochloric acid Sodium hydroxide Water from the sodium hydroxide solution Water product from the reaction 4. Give two possible sources for error that might have occurred during part C. Your answer cannot be based on just ‘human’ error (examples: calculation error, not following directions). Instead think about how the experimental set-up might lead to error.  DATA:Part B:80 degrees C -hot water59.3 degrees C -hot and cold water mixed24.3 degrees C – cold water45 mL styrofoam cup80 mL heated beakerPart C:.996M HCl1.10 M NaOH51 mL NaOH @ 24.6 degrees C46 mL HCl @25.5 degrees CNaOH and HCl mixed 31.4 degrees C

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