Question

help me with the missing info please.. i dont understand

VS. Use a second thermometer/temperature probe to check the temperature. 6. Use a 100 ml. graduated cylinder to measure 50.0 mL of hot water y Record the temperature of the "hot" water in your lab notebook. 0 Mix the hot water with the cold water in the calorimeter replacing the lid quickly, and the record the temperature of the combined solution every 15 seconds for six minutes (24 readings). Note: One person should use the second hand of watch to determine the times of collection and record the readings in both stud he readings in both student's notebooks while another student stirs the calorimeter cup and reads the temperature. 23-25 v 24 Part II: Heat of Neutralization (With HCI and NaOH) V Dry the calorimeter and temperature probe/thermometer with a paper towel V2. Carefully measure 50.0 mL of NaOH and add it to the calorimeter. 3. Carefully measure 50.0 ml of HCl and add it to a clean dry beaker. 4. Let the two solutions sit a minute or two until they get to with 0.5 °C of each other. The closer their temperatures, the better. Record the initial temperatures of the two solutions in your lab notebook. Wo Mix the acid with the base in the calorimeter replace the lid and then record the temperature of the combined solution every 15 seconds for six minutes (24 readings). Part III: Heat of Neutralization (With HC,H,O, and NaOH) 1. Repeat the steps above in Part II, except substitute HC H,O, for the HCL Cleanup All neutralized solutions can be rinsed down the drain with LOTS of water. Water Part 1 Part II Part 11 34.75 152 31 30.75 34.75 132 31 30.75 34.75 32 31 30.75 34,75 32 31 34.75 54.5 34,75 64,5 34,75 34,5 34.75 84.15 34,5 54.75 34.5 34.25 2.25 31.25 54.75 32 31 31.5 31 81 31.5 31.5 31.25 30.75 30.75

Answer 1

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(wation will be done with Part I) All this calculation will be - a simple formula Q = MCAT I Where m= mass, co specificheat capacity - Cp for water 4.18 4 T gmoc Hot water so me = 50gm cassumigion 19m/ml density cold water - Sogn Alcold water : 30.75- 24: 6.75°C AT hot water = 7 - 30.75 : 16.25°c 9 cold m. , AT: 50x4.18 5X(6.75): 1412 15 - thot: MACAT = 50x4.18 4 X 16.25 = 3400 T Anot = 4 cold t scal . Thot - 4 cold = (cal Alcal 340o-1412.1 = Ccal = 2.94.50 I = Heab capacity (6.75) calorometer Part II) Isoln - Mooinx Coin xaT soln = 100x 4.184X (34.75-05) 9 soln 4079.4 I gcal = (calX AT cal = 294.50X (B4. 75- 23) 3460.375 greaction = (4079.4+3460.375) - - 7539.77 I . For part II, data is insuffieco cienti . ho readings are available