hcl = 1.00 g/mL
tared mass of Mg solid : run 1=0.107g
run 2=0.106 g
tared mass of MgO : run 3= 0.804g run 4= 0.804g
Hcl 1 00 G Ml Tared Mass Of Mg Solid Run 1 0 107g Run 2 0 106 G Tared Mass Of Mgo Run 3 0 804g Run 4 0 804g 1 (37.98 KiB) Viewed 46 times
Hcl 1 00 G Ml Tared Mass Of Mg Solid Run 1 0 107g Run 2 0 106 G Tared Mass Of Mgo Run 3 0 804g Run 4 0 804g 2 (37.98 KiB) Viewed 46 times
Hcl 1 00 G Ml Tared Mass Of Mg Solid Run 1 0 107g Run 2 0 106 G Tared Mass Of Mgo Run 3 0 804g Run 4 0 804g 3 (56.19 KiB) Viewed 46 times
CALCULATIONS AND QUESTIONS Calculate the AT value for each run Calculate the AH value for each run calc q and divide by reagent In this experiment the values of AH₁ and AH₂ have been determined experimentally. Find the literature value of AH for the reaction 1. 2. →→→ H₂O(1) AH3 Combine the three reaction equations and the corresponding values for AH to determine the value for the heat of formation of MgO. Consult the literature to determine the theoretical value for the heat of formation of magnesium oxide and calculate the percentage error. 5. Explain two sources of error. 4. H₂(g) + O₂(g) +02(8) mass of Sol. = HC| / error = theoretical experimental. theoretical x 100m
Data and Minor Calculations. Part! Enthalpy of reaction of magnesium with and Taved mass of Magnesium solid: 0.105 0.107 (run 1) Table 1: Bun Intial Temp (Ti) Final Temp (TF) change in Temp (AT) Time (s) Table 2: Run Intial temp (Ti) Final Temple) 1 22.4°C 28.5% change in temp/AT) Time (s) g 3 Part 2: Enthalpy of reaction of magnesium oxide with acid Tared mass of maquesium oxide: 0.804 and g (run 3) 22.1°C 28.8°C Lab Quest ID: NLB and 0.106 (ruu 2) 50s (Ti) 400s (TF) 2 21.9°C 26.1°C 60s (Ti) 480(TF) 10s (Ti) 440s (TF) VD JG Hess Law 4 g 0.804 (rung) g 22.2°C 28.8 C 30s (Ti) 270s (TF)
Join a community of subject matter experts. Register for FREE to view solutions, replies, and use search function. Request answer by replying!