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answer to  Q/(Molarity of NaOH  x  volume of NaOH (in litres))

answer to  Q/(Molarity of NaOH  x  volume of NaOH (in litres))

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Sorry not sure if i made it clear but I need answer to 

Q/(Molarity of NaOH  x  volume of NaOH (in litres))

File Edit View Insert Format Tools Add-ons He Introduction Procedure Observation Observations: 100% 1 2 I 3 I 4 Initial solution temperature (°C): 20.8°C Maximum solution temperature (°C):27°C Recall that the steepest point on the pH curve occurs at the equivalence point, that is, when the acid is exactly neutralized. Total volume of NaOH titrated to reach end-point or neutralization (steepest point on the pH curve):25ml 14 13 Mass of solution (g) = (Volume of NaOH titrated (ml) + Volume of HCl (ml)) x density Mass of solution = 76 g 34 32 31 30 29 Note: Assume a density of 1.038 for both NaOH and HCI 11 10 pH Heat released by neutralization: 27 Q = mcAT Q = 1.9 x 10^3 J 25 where m is the mass solution in grams, c = specific heat capacity of our solution (=4.184 J/°C g) and AT=T, max 23 22 21 20 Tinitial- Heat of Neutralization = Q/moles of limiting reactant Q/moles of NaOH titrated at neutralization Q/(Molarity of NaOH x volume of NaOH (in litres)) 10 15 20 25 30 35 40 45 %3D Volume titrated (ml) Temp °C CO LO T MS M 33♡ 3 ÑÑ NÑÑN ÑÑNN -으2 으9876543210
Transcribed Image Text:File Edit View Insert Format Tools Add-ons He Introduction Procedure Observation Observations: 100% 1 2 I 3 I 4 Initial solution temperature (°C): 20.8°C Maximum solution temperature (°C):27°C Recall that the steepest point on the pH curve occurs at the equivalence point, that is, when the acid is exactly neutralized. Total volume of NaOH titrated to reach end-point or neutralization (steepest point on the pH curve):25ml 14 13 Mass of solution (g) = (Volume of NaOH titrated (ml) + Volume of HCl (ml)) x density Mass of solution = 76 g 34 32 31 30 29 Note: Assume a density of 1.038 for both NaOH and HCI 11 10 pH Heat released by neutralization: 27 Q = mcAT Q = 1.9 x 10^3 J 25 where m is the mass solution in grams, c = specific heat capacity of our solution (=4.184 J/°C g) and AT=T, max 23 22 21 20 Tinitial- Heat of Neutralization = Q/moles of limiting reactant Q/moles of NaOH titrated at neutralization Q/(Molarity of NaOH x volume of NaOH (in litres)) 10 15 20 25 30 35 40 45 %3D Volume titrated (ml) Temp °C CO LO T MS M 33♡ 3 ÑÑ NÑÑN ÑÑNN -으2 으9876543210
I I II1 III I II III 5 I I I II 6 I Step 1: Obtain a calorimeter from the Equipment menu. Step 2. Select the calorimeter and add 25 ml of 1M HCl using the Chemicals dialog box. Step 3. Obtain a 50 ml buret from the Equipment menu. Step 4. Select the buret and fill with 50 ml of 1 M NAOH, using the Chemicals dialog box. 14 13 12 11 10 34 33 32 Step 5. Select the calorimeter and add a pH meter from the |Equipment menu – this will appear as a pH label below the calorimeter. 31 9 30 29 28 27 26 25 |24 23 22 21 20 Step 6. Select the calorimeter and turn-on the collection of titration data using the Procedure menu for Collect Titration pH Data. 7 Step 7. Select View Titration Data from the Procedures menu. Step 8. Start titrating the NaOH into the calorimeter, you should see a plot of “ml(s) titrate" vs pH and temperature in the Titration Data window. Step 9. Titrate all the NaOH into the calorimeter – note the point at which the temperature reaches it maximum. 10 15 20 25 30 35 40 45 Volume titrated (ml) Step 10. Record your observations.
Transcribed Image Text:I I II1 III I II III 5 I I I II 6 I Step 1: Obtain a calorimeter from the Equipment menu. Step 2. Select the calorimeter and add 25 ml of 1M HCl using the Chemicals dialog box. Step 3. Obtain a 50 ml buret from the Equipment menu. Step 4. Select the buret and fill with 50 ml of 1 M NAOH, using the Chemicals dialog box. 14 13 12 11 10 34 33 32 Step 5. Select the calorimeter and add a pH meter from the |Equipment menu – this will appear as a pH label below the calorimeter. 31 9 30 29 28 27 26 25 |24 23 22 21 20 Step 6. Select the calorimeter and turn-on the collection of titration data using the Procedure menu for Collect Titration pH Data. 7 Step 7. Select View Titration Data from the Procedures menu. Step 8. Start titrating the NaOH into the calorimeter, you should see a plot of “ml(s) titrate" vs pH and temperature in the Titration Data window. Step 9. Titrate all the NaOH into the calorimeter – note the point at which the temperature reaches it maximum. 10 15 20 25 30 35 40 45 Volume titrated (ml) Step 10. Record your observations.
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