Question

Problem 11 Write balanced equations for the formation of 1 mol of the following compounds from their elements in their standard states and provide AHºr obtained from the trusted source for each compound. a. solid potassium chlorate, KCIO3 b. liquid formic acid, HCOOH c. NH3(g) d. benzene, C6H6(1)

Answer 1

L. (a) solict potassicm Chlorate, KUD3 : Elewents at Cotitutes KCL03 are potamum,K Chorine, C and ony, the formadon ,1 Be solid KCO3 s : So, he eaatron for KCIO3CS) K0)+CCg)0) 2 AHJ, KCo,9 -397.73 kJ/mot

(liquicl forunic acid, HC0OH () HcooH () i formed fon CC, 0,9) and H,(9): Equaton:C ) 0) H,g) НсоОн (4) 4f, HeooH ()-424.72 kJ/ml

Ca) NH will be formed fam N,g) and H Equartion NH9) +3 2 2. -46:11 ku AHO (d) bin2ene, H ): Benzena () wl be formed for Carbon avd hycho- C He () Equaston:6C C) +6H,j) 49.0 kJhus AH2 , Gat)