B) 103 KJ
The value of AH° for the reaction below is -482 kJ. Calculate the heat (kJ) released...
12. The value of AH° for the reaction below is.-336 kJ. Calculate the heat (kJ) released to the surroundings when 23.0 g of HCl is formed. CH4 (g) + 3Cl2 (g) → CHCl3 (1) + 3HCl (8)
The value of AH for the reaction below is -1107 kJ: 2Ba(s) + O2 (g) - 2 BaO(s) What is the value of q in kJ when 3.300 mole of Ba (s) reacts completely with oxygen to form Bao (s)? O-63.50 1827 63.50 2435 1384
Consider the following reaction: CH3OH(9) CO(9)+2H (9) AH = +90.7kJ AH = 130 kJ Previous Answers Correct Part For a given sample of CH,OH the enthalpy change on reaction is 185 kJ How many grams of hydrogen gas are produced? I AED ROO? Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining Part D What is the value of AH for the reverse of the previous reaction? AED ROO? AH. Submit Previous Answers Request Answer X Incorrect;...
help The value of H° for the reaction below is -1107 kJ: 2Ba (s) + O2 (g) 2BaO (s) How many kJ of heat are released when 5.75 g of Ba (s) reacts completely with oxygen to form BaO (s)? 23.2 kJ 26.3 kJ 96.3 kJ 46.4 kJ 193 kJ
for 12. Using the reaction enthalpy data shown, determine the amount of heat released in each situation: 2 Ca(s) + O2(g) → 2 Cao (s) AH = -1,269.8 kJ a. if calcium reacts with 3 moles of O b. if 8 moles of calcium reacts with O2 c. if calcium and oxygen react to form 1 mole of Cao 13. Butane, CHao, is the fuel used in many hand-held lighters (see Figure 8.16). Based on the reaction enthalpy below, how...
. Use the equation below to calculate how much heat (in kJ) is evolved when 5.0 g of aluminium reacts with a stoichiometric amount of Fe2O3? 2 Al (s) + Fe2O3 (s) —>2 Fe (s) + Al2O3 (s) AH° = -852 kJ Determine the AHPrxn for the following reaction. {AH® (NH3) = -45.9 kJ/mol; AH°(O2) = 0; AH® (NO) = +91.3 kJ/mol; AH° (H2O) = -241.8 kJ/mol; 4 NH3 (g) + 5 O2 (g) — 4 NO (g) + 6...
help help help pls! 17. The value of AH° for the reaction below is -790 kJ/mol. What is the enthalpy change accompanying when 0.95 g of S is completely reacted? 2S (s)302 (g) -2SO3 (g) 18. What is the enthalpy of the following reaction: 4 HCI(g) + O2(g) Given the following thermochemical equations: H2(g)+Cla(g)-2 HCI(g) 2 H2(s)O2(g)- 2 H20(g) 2 Cl2 +2 H2O (g)? AH -185 kJ AH-483.7 kJ
all 3. Calculate the heat released (kJ) in the reaction of 1.35L of acetylene (C2H2) and 0.235L of hydrogen gas at STP to form ethane gas as determined by the following equation: C2H2(g) + 2H2() → C2H6(g) Given: 2C2H2(g) +502(g) + 4CO2(g) + 2H20(g) 2C2H.(g) + 702(g) → 4CO2(g) + 6H20(g) 2H2(g) + O2(g) → 2H2O(g) AH = -2320 kJ/mol AH = -3040 kJ/mol AH = -572 kJ/mol
15. The AH value for the reaction KO,(g ) +Hg() HgO(s ) is -90.8 kJ. How much heat is released when 66.9 g Hg is reacted with oxygen? A) 0.333 kJ B) 6.07 x 103 kJ C) 30.3 kJ BAC D) 90.8 kJ E) none of these
Calculate the enthalpy of the reaction 2NO(g) + O2(g)2NO2(g) Hess's law states that "the heat released or absorbed in a chemical process is the same whether the process takes place in one or in several steps." It is important to recall the following rules: given the following reactions and enthalpies of formation: 1. ¢ N2(g) + O2(g)+NO2(g), AH; = 33.2 kJ 2. N2(g) + O2(g) NO(g), AHB = 90.2 kJ 1. When two reactions are added, their enthalpy values are...