Question

99 of 20 Questions Assignment Score: 855/2000 Resources L ive Up Hint Check Answer 0/100 3 Question Dofo Attempts Question 9 of 20 > 4 Question 1 of Attempts 100/100 Correct During an experiment, a student adds 0.339 g of calcium metal to 100.0 mL of 2.05 M HCl. The student observes a temperature increase of 11.0°C for the solution. Assuming the solution's final volume is 100.0 mL, the density is 1.00 g/mL, and the specific heat is 4.184 Jg."C), calculate the heat of the reaction, AHx 90% 5 Question 3 of Attempts Ca(s) + 2 H+ (aq) — Ca²+(aq) + H (@) Correct 95/100 06 Question 2 of Attempts Correct AH.x = 1 kJ/mol 7 Question 20 Altempts 95/100 Correct 90/100 8 Question 5 of Attempts Correct 0/100 9 Question Dofco Attempts 0/100 10 Question Dof Attempts 0/100 11 Question of Attempts 0/100 12 Question Dol Attempts 0/100 13 Question Dofo Attempts 0/100 14 Question Dofs Attempts

Answer 1

Cals) + 2HClcaq -> COG/2 c aq) + Hacy) OH reach = EOH (products) - ESHO coeactants) DHS Cais) = 0 DH'S CH₂) cg) = 0 DHS (HCI)caq) = -167.2 kJ/mo) Ang CCOCl2) caq) = -877.3 kJ/mol O Hoeac" = (-877.3 + 0) – (-167.2*2 + o) = -877.3 + 394.4 = - 542.9 kJ/rool