Question

Please help fill in data table and answer questions. thank you!

Date DATA Reaction 1 (Mgo) Reaction 2 (Mg) T. Volume of 1.00 M HCI 2. Final temperature, t 3. Initial temperature, t 50.0 m 50.0 mL Bc -C 20.8 C 4. Change in temperature, t 5. Mass of solid 6. Heat, q 7. ΔΗ 8. Moles mol Mgo mol Mg kJ/mol kJ/mol 10. Determine ΔH/mol Mg for reaction (4)" (10.) 11. Percent error Outside of lab, you must print 2 individual graphs of temperature vs. time. One fo Reaction I and one for Reaction 2. Open your LabQuest experiment file with Logger Pro Double click anywhere in the graph window. Select the Axes Option tab. To display a particular run, check it and uncheck the other. Click Done. From the Insert menu, select Text Annotation and label each curve (Reaction I or Reaction 2). Each graph must also have the Statisties box on it. PROCESSING THE DATA All calculations must be done in your lab notebook, submit the copy page(s) with your lab report 1. Calculate the change in temperature, t t,-t, for Reactions 1 and 2 2. Caleulate the heat released by each reaction, q using the formula Cp 4.184 J/g°C, and m 50.0 g of HCl solution. Convert Joules to kJin your final answer 3. Determine ΔΙ. (ΔΗ -q) 4. Determine the moles of MgO and Mg used. 5. Use your Step 3 and Step 4 results to calculate AH/mol for MgO and Mg. 6. Determine AH/mol Mg for Reaction 4. (Use your Step 5 results, your pre-lab work, and AH285.8 kJ/mol for Reaction 3). Determine the percent error for the answer you obtained in Step 6. Reaction 4 is the "formation reaction" for MgO. The accepted value for the enthalpy of formation for this reaction can be found in your general chemistry textbook. 7. % error d mental valued 100 eaccepted value accepted value This equation can be obtained by combining, in some way by equations (1), (2), and (3) ) Mgos) + 2 HCl(ag) MgCl2taHO) 2) Mg(s)2 HCla)MgCl2(aq) H2(e) (3) H2(g) 1/2 020)) The pre-lab exercise below requires you to combine equations (1), (2), and (3) to obtain equation (4) before you do the experiment. Do this and include it as a part of your experiment summary. Heats of reaction (AH) for equations (1) and (2) will be determined in this experiment. AH for reaction (3) is-285.8 kJ/mol of H0. PRE-LAB EXERCISE In the space provided below, combine equations (1). (2), and (3) to obtain equation (4) Mg0s) t 2 HCI(g) Mach (a)+H200 PROCEDIIRE

Answer 1

1.8228 ! . 8828 ICT . 0-S42 40.3 -1.8828 O13ts 4 2258 LT

24 -t, 2258 muof 412 21 KR

More details are needed for calculating further.