Question

I need help with a chemistry lab, i dont understand anything
1. For each of your three trials state the following:
• heat needed to melt the ice (q)
• enthalpy of fusion
• percent error from the accepted enthalpy of fusion of water of 334 J/g
Answer:





(7 points)
Score

2. List three sources of error that could account for the differences between your values for the enthalpy of fusion of water and the accepted value of 334 J/g.
Answer:





(5 points)
Score

3. What was your average percent error for all three trials? In this experiment you did three trials. Why wa

Answer 1

Please i desperately need help

Answer 2

first off, where is your data?

Answer 3

Trial 1 Mass of calorimeter: 409g Temp of calorimeter: 20Cº Mass of calorimeter + water: 457g Temp of calorimeter + water: 20Cº Mass of calorimeter + water + ice: 510g Temp of calorimeter + water + ice: – Mass of calorimeter + ice: 450g Temp of calorimeter + ice: 0Cº Trial 2 Mass of calorimeter: 409g Temp of calorimeter: 20Cº Mass of calorimeter + water: 461g Temp of calorimeter + water: 22Cº Mass of calorimeter + water + ice: 515g Temp of calorimeter + water + ice: – Mass of calorimeter + ice: 447g Temp of calorimeter + ice: 0Cº Trial 3 Mass of calorimeter: 409g Temp of calorimeter: 20Cº Mass of calorimeter + water: 459g Temp of calorimeter + water: 22Cº Mass of calorimeter + water + ice: 513g Temp of calorimeter + water + ice: – Mass of calorimeter + ice: 448g Temp of calorimeter + ice: 0Cº