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Determine the direction that heat is flowing in each of the solvation reactions. KCIO3(s) + H,...
4. You will conduct the two solvation reactions and three neutralization reactions in this experiment. In...
4. You will conduct the two solvation reactions and three neutralization reactions in this experiment. In the space provided below, write the balanced net ionic reaction equations from the descriptions. Use the table of thermodynamic data in your text (AHf(NaOH(s)= -425.61 kJ-mol) to calculate the molar enthalpy of the reactions. These will be the accepted values you will compare to the experimental values you calculate using data collected during the experiment. Part I: Solid sodium hydroxide is combined with water...
Question 4 of 4 > The enthalpy changes, AH, for three reactions are given. H, ()0,()H,O)...
Question 4 of 4 > The enthalpy changes, AH, for three reactions are given. H, ()0,()H,O) Ca(s) +2H (aq) Ca2 (aq) +H,(g) CaO(s) +2H (aq) - AH=-286 kJ/mol AH= -544 kJ/mol Ca2 (aq) +H,O() AH =-193 kJ/mol Using Hess's law, calculate the heat of formation for CaO(s) using the reaction shown. 0,()Ca) Ca(s) + kJ/mol ΔΗ- TOOLS During an experiment, a student adds 1.81 g CaO to 300.0 mL of 1.000 M HCI. The student observès a temperature increase of...
Calculate the enthalpy change for the following reactions. Balance the equation and calculate the enthalpy change:...
Calculate the enthalpy change for the following reactions. Balance the equation and calculate the enthalpy change: 9. MgO(s) + H, (g) + Mg(s) + H,O(1) Mg(s) + 12 0,) ► MgO(s) AH =-602 kJ H,(s) + 0,(9) H,00 AH = –242 kJ 602 kJ - 242 kJ = 360 kJ = AH 10. NaCl(s) + H2O → Na+ (aq) + Cl(aq) NaCl(s) → Nat(g) + CH) Nat(g) + CHg) → Na*(aq) + Cl(aq) AH =? AH = 788 kJ/mol AH...
Using the provided table and the equation below, determine the heat of formation for KCIO2. 2...
Using the provided table and the equation below, determine the heat of formation for KCIO2. 2 KCIO: (s) 2 KCIO2 (s) + O2 (g) AH° = 296.2 kJ/mol Substance kJ/mol AHi" (kJ/mol) KCIO3 (s) -391.2 1 3 2 4 5 6 с O2 (g) 0 7 8 9 +/- 0 X 100
2Al(s) + 3Cl2(8) - 2AICI,(s) AH =? Use the reactions here to determine the AH' for...
2Al(s) + 3Cl2(8) - 2AICI,(s) AH =? Use the reactions here to determine the AH' for reaction : ® HCI(g) — HCl(aq) AH;, = -74.8 kJ (a) Hz(8) + C1>(- 2HCl(8) AH) = -185 kJ M AICI;(aq) - AICI,(s) AH = +323 kJ/mol M 2Al(s) + 6HCl(aq) - 2AICI,(aq) + 3H2(g) AH = -10:49 J
3) Calculate the AH,º for the following reactions based on the standard heat of enthalpy of each compound. AH° (kJ/...
3) Calculate the AH,º for the following reactions based on the standard heat of enthalpy of each compound. AH° (kJ/mol): HCl(g) → -92.3, NaCl(s) →-411.0, NaOH(s) →-426.7. H2O(g) +-241.8 SO2(g) → -296.8, H2S(g) → -20.0, O2(g) → 0.0, H2O(l) →-285.8 a) NaOH(s) + HCl(g) ----> NaCl(s) + H2O(g) b) 2 H2S(g) + 3 O2(g) ---> 2 H2O(l) + 2 SO2(g)
6.A 12.8 g sample of ethanol (C,H,OH) is burned in a calorimeter with a heat capacity...
6.A 12.8 g sample of ethanol (C,H,OH) is burned in a calorimeter with a heat capacity of 5.65 kJ/°C. Assume the heat from the sample is negligible compared to the calorimeter. Determine the initial temperature of the calorimeter if the final temperature is 85.7°C. The molar mass of ethanol is 46.07 g/mol. С-Н,ОН , + 3 О,ее — 2 СОде + 3 Н,0 qrxn -1235 kJ 7. Two solutions, initially at 24.60 °C, are mixed in a coffee cup calorimeter...
calculate the delta h,delta s and delta s universe for this reaction. determine the spontaneity of...
calculate the delta h,delta s and delta s universe for this
reaction. determine the spontaneity of the reaction.
Question 7 KO2(g) + H2(g) = H2O(g) Calculate the AH, AS and AS universe for this reaction. Determine the spontaneity of the reaction. AHAG So Substance kJ/mol kJ/mol J/(mol-K) 1 0 Ag S Agt(a) AgBr(s) Agcls Agls) Cl2(g) Cl(g Cl(aq) Br-fag) H+ (aq) Hz(g) H2O(g) H2O(0 H3O+ (aq) H20200 HBr(g) HCl(g) HCN(g) KS Kag) KO2(aq) KOHS) KBr(s) KCIS KCIO3(s) 0(8) O2(g) 03(g)...
Part 2, find AH°rxn =kJ/mol Two solutions are mixed in a coffee cup calorimeter both are...
Part 2, find AH°rxn =kJ/mol Two solutions are mixed in a coffee cup calorimeter both are initially at 22.60°C. When a 100.0 mL volume of 1.00 M AgNO3 solution is mixed with a 100.0 mL sample of 0.500 M NaCl solution, the temperature in the calorimeter rises to 28.30°C (assume no heat is lost to the surroundings and the density and heat capacity of the solutions is the same as that of water). Determine the AHºrxn for the reaction as...
QUESTION 1 Heat is required to dissolve NaOH(s) in water. A-True B-False -------------------- QUESTiON 2 The...
QUESTION 1 Heat is required to dissolve NaOH(s) in water. A-True B-False -------------------- QUESTiON 2 The below equation represents an exothermic reaction: Reactants + delta H ----> product ATrue B-False -------------------- QUESTION 3 The Styrofoam cup was used as an insulated device that allows heat loss A-True B-False -------------------- QUESTION 4 The following is an endothermic reaction; NaOH+ HCI------> NaCl+H2O+42.12KJ A-True B-False -------------------- QUESTION 5 NaOH(s)---> Na^+(aq)+CH^-(aq)+44.02kJ Calculate the amount (in moles) of NaOH needed to make the reaction above...
4. You will conduct the two solvation reactions and three neutralization reactions in this experiment. In the space provided below, write the balanced net ionic reaction equations from the descriptions. Use the table of thermodynamic data in your text (AHf(NaOH(s)= -425.61 kJ-mol) to calculate the molar enthalpy of the reactions. These will be the accepted values you will compare to the experimental values you calculate using data collected during the experiment. Part I: Solid sodium hydroxide is combined with water...
Question 4 of 4 > The enthalpy changes, AH, for three reactions are given. H, ()0,()H,O) Ca(s) +2H (aq) Ca2 (aq) +H,(g) CaO(s) +2H (aq) - AH=-286 kJ/mol AH= -544 kJ/mol Ca2 (aq) +H,O() AH =-193 kJ/mol Using Hess's law, calculate the heat of formation for CaO(s) using the reaction shown. 0,()Ca) Ca(s) + kJ/mol ΔΗ- TOOLS During an experiment, a student adds 1.81 g CaO to 300.0 mL of 1.000 M HCI. The student observès a temperature increase of...
Calculate the enthalpy change for the following reactions. Balance the equation and calculate the enthalpy change: 9. MgO(s) + H, (g) + Mg(s) + H,O(1) Mg(s) + 12 0,) ► MgO(s) AH =-602 kJ H,(s) + 0,(9) H,00 AH = –242 kJ 602 kJ - 242 kJ = 360 kJ = AH 10. NaCl(s) + H2O → Na+ (aq) + Cl(aq) NaCl(s) → Nat(g) + CH) Nat(g) + CHg) → Na*(aq) + Cl(aq) AH =? AH = 788 kJ/mol AH...
Using the provided table and the equation below, determine the heat of formation for KCIO2. 2 KCIO: (s) 2 KCIO2 (s) + O2 (g) AH° = 296.2 kJ/mol Substance kJ/mol AHi" (kJ/mol) KCIO3 (s) -391.2 1 3 2 4 5 6 с O2 (g) 0 7 8 9 +/- 0 X 100
2Al(s) + 3Cl2(8) - 2AICI,(s) AH =? Use the reactions here to determine the AH' for reaction : ® HCI(g) — HCl(aq) AH;, = -74.8 kJ (a) Hz(8) + C1>(- 2HCl(8) AH) = -185 kJ M AICI;(aq) - AICI,(s) AH = +323 kJ/mol M 2Al(s) + 6HCl(aq) - 2AICI,(aq) + 3H2(g) AH = -10:49 J
3) Calculate the AH,º for the following reactions based on the standard heat of enthalpy of each compound. AH° (kJ/mol): HCl(g) → -92.3, NaCl(s) →-411.0, NaOH(s) →-426.7. H2O(g) +-241.8 SO2(g) → -296.8, H2S(g) → -20.0, O2(g) → 0.0, H2O(l) →-285.8 a) NaOH(s) + HCl(g) ----> NaCl(s) + H2O(g) b) 2 H2S(g) + 3 O2(g) ---> 2 H2O(l) + 2 SO2(g)
6.A 12.8 g sample of ethanol (C,H,OH) is burned in a calorimeter with a heat capacity of 5.65 kJ/°C. Assume the heat from the sample is negligible compared to the calorimeter. Determine the initial temperature of the calorimeter if the final temperature is 85.7°C. The molar mass of ethanol is 46.07 g/mol. С-Н,ОН , + 3 О,ее — 2 СОде + 3 Н,0 qrxn -1235 kJ 7. Two solutions, initially at 24.60 °C, are mixed in a coffee cup calorimeter...
calculate the delta h,delta s and delta s universe for this
reaction. determine the spontaneity of the reaction.
Question 7 KO2(g) + H2(g) = H2O(g) Calculate the AH, AS and AS universe for this reaction. Determine the spontaneity of the reaction. AHAG So Substance kJ/mol kJ/mol J/(mol-K) 1 0 Ag S Agt(a) AgBr(s) Agcls Agls) Cl2(g) Cl(g Cl(aq) Br-fag) H+ (aq) Hz(g) H2O(g) H2O(0 H3O+ (aq) H20200 HBr(g) HCl(g) HCN(g) KS Kag) KO2(aq) KOHS) KBr(s) KCIS KCIO3(s) 0(8) O2(g) 03(g)...
Part 2, find AH°rxn =kJ/mol Two solutions are mixed in a coffee cup calorimeter both are initially at 22.60°C. When a 100.0 mL volume of 1.00 M AgNO3 solution is mixed with a 100.0 mL sample of 0.500 M NaCl solution, the temperature in the calorimeter rises to 28.30°C (assume no heat is lost to the surroundings and the density and heat capacity of the solutions is the same as that of water). Determine the AHºrxn for the reaction as...
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