Dissolution of Sodium Hydroxide mass of water: 200 g initial temperature of water: 20°C final temperature of water: 26.49°C qwater: 5430.832 J qdissolution: 5566.6028 J   mass of solid NaOH: 5.0 g moles of solid NaOH: 0.125 mol ΔH of NaOH dissolution: -44.53 kJ/mol  If you touch the sides of a beaker containing NaOH being dissolved, will it feel warm or cold to touch? Explain.

Q: Assume that 100.0 mL of 0.200 M NAOH and 50.0 mL of 0.400 M HCl are mixed in a calorimeter. The…

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Q: nother group performed the combustion of sucrose. Determine the ΔHcombustion (in kJ/mol) of sucrose…

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Q: 8. The value of ΔH0for the reaction CH3OH(l) → CO(g) + 2H2(g) is +128.1 kJ. Determine the heat…

A: The amount of energy liberated or absorbed in a chemical reaction is expressed by the change in…

Q: What is the ΔE in units joules for a system releasing 428 calories of heat its surroundings and has…

A: a system releasing 428 calories of heat its surroundings and has 1255 J of work done on the system

Q: d)The ΔH°f of Ar(g) is   1.positive. 2.negative. 3.zero. 4.must be determined experimentally.…

A: The ΔH°f of Ar(g) is 1.positive. 2.negative. 3.zero. 4.must be determined experimentally

Q: For the species in the reaction: 2Co(s) + H2(g) 8PF3(g) → 2HCo(PF3)4(l), which component is ΔH0f…

A: component is ΔH0f equal to zero is given below

Q: A 6.620g sample of C12H24(l) was burned in a bomb caloriemter whose heat capacity had been…

A: Given: Mass of C12H24 is 6.620 g Molar mass is 168.319 g/mol Mass of water is 1250.0 g Initial…

Q: 200 ° C, the numerical value of Kc for the following reaction is 8 × 10-³. PCl5 = PCl3 + Cl2 deltaH…

A: Since you have asked a question with  multiple sub-parts, we will solve  first three sub-parts for…

Q: Consider the reaction. 2Fe2O3⟶4Fe+3O2ΔH∘rxn=+824.2 kJ2Fe2O3⟶4Fe+3O2ΔHrxn°=+824.2 kJ a) The…

A: The heat change that occurs in the formation of any compound that amounts 1 mole is called enthalpy…

Q: Using Hess's law, calculate ΔH for the reaction: 2C (s) + H2 (g) -> C2H2 (g) reaction 1 C2H2 (g) +…

A: Given: The different chemical reaction is calculated as follows: C2H2 (g) + 3O2 (g) ------------>…

Q: Calculate G°rxn for the combustion of propane, based on the reaction and thermochemical data shown…

A: ∆Grxn∘ = ∑∆Gf∘ (Products) - ∑∆Gf∘ (Reactants)

Q: Find the ΔH for this reaction : 3H2(g) +O3(g) --> 3H2O(g) Given the two following pieces of…

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Q: Carbon dioxide from the atmosphere “weathers”, or dissolves, limestone, CaCO3 by the reaction. CaCO3…

A: The ∆H°rxn of a reaction can be calculated using the following equation ∆Hrxn = ∑(∆H)products -…

Q: A 72.0 mL sample of 1.00 M NAOH is mixed with 59.0 mL of 1.00 M H,SO, in a large Styrofoam coffee…

A: The given thermochemical equation is: H2SO4(aq) + 2NaOH(aq)  ----> Na2SO4(aq) + 2H2O(l) ; ∆Hrxn =…

Q: Consider the following reaction,  2A2(g) + 2B2C(l) ⟶⟶4BA(g) + C2(g) What is Δ?ΔH for the reaction,…

A: Consider the following reaction,  2A2(g) + 2B2C(l) ⟶⟶4BA(g) + C2(g) What is ΔH for the reaction ?

Q: 0.178 mole sample of solid NaX is dissolved in 275 mL of water in an insulated container at 23.7°C…

A: The question is based on the concept of specific heat capacity.  It is defined as the amount of heat…

Q: Your lab partner asks you to make 100 mL of a 1.50 M HCl solution for an experiment she would like…

A: Please find the below attachment.

Q: Consider the solution process for NH4NO3(s): NH4NO3(s)  →  NH4+(aq)  +  NO3-(aq) When a 4.25g…

A: Answer:- This question is answered by using the simple concept of enthalpy of solution using the…

Q: If 5.60 mol of a substance releases 14.9 KJ when it decomposes, what is the ΔH for the term KJ/mol…

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Q: Sodium hydroxide (39.9971 g/mol) reacts with excess H2SO4 in a constant-pressure calorimeter. The…

A: Given ∆T = 29°CMass of reaction mixture = M = 120 gSpecific heat of solution = Cs = 4.184 J/g°CHeat…

Q: Substance AHf (kJ/mol) KCIO3(s) -397.7 KCI(s) -436.5 What quantity of heat is released when 1.00 g…

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Q: Calculate ΔH per the reaction NO(g) + O(g)-> NO2(g) Data: NO(g) + O(g)-> NO(g) + O2(g)      ΔH=…

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Q: When 3.00 g of sodium hydroxide (NaOH) was dissolved in 150.00 g of water a value of 11.00oC was…

A: The heat of the solution produced when 3.0 g of sodium hydroxide is dissolved in 100 g of water, is…

Q: According to the following reaction, how much energy is evolved during the reaction of 32.5 g B2H6…

A: Given reaction: B2H6 (g) + 6Cl2 (g) → 2BCl3 (g) + 6HCl (g)  ∆H∘rxn = -1396 kJ We have to calculate…

Q: General Chemistry student performed the “Thermochemistry” lab and obtained the following results:…

A: The mass of KCl is 5.550 g. The volume of water is 0.0450 L. The value of ∆T is -15.0 C.

Q: Q3: Consider the reaction, NO+ONO+O using the data in the table. Calculate AG of the reaction.

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Q: Choose the correct ΔH0reaction for the reaction: 2 C2H2(g) + 5 O2(g) → 4 CO2(g) + 2 H2O(g)…

A: Since the standard enthalpy of formation is given so to determine enthalpy of reaction, total…

Q: CaCl2 (MM = 110.98 g/mol) is used as road salt in the winter to minimize the accumulation of ice on…

A: On adding dissolving CaCl2, the temperature will change from initial value. Heat absorbed by water…

Q: The reaction: 2 Mg + O2 --> 2 MgO has Δ Hrxn = -600. kJ/mol. Determine q for the reaction of 10.0…

A: To solve this problem first we have to calculate the number of mole of Mg in 10.0 g  Then according…

Q: The reaction written below has a ΔH of +2,980 kJ/mol            6CO2(g) + 6H2O(g) --> C6H12O6(g)…

A: The balanced reaction given is, => 6 CO2 (g) + 6 H2O (g) → C6H12O6 (g) +6 O2 (g)…

Q: The reaction written below has a ΔH of +2,662 kJ/mol          6CO2(g) + 6H2O(g) --> C6H12O6(g)…

A: Carbon dioxide reacts with water to form glucose and oxygen. The equation for the balanced chemical…

Q: 5. In a calorimeter, 250 mL of 0.180 mol/L barium chloride is mixed with 150 mL of 0.200mol/L sodium…

A: 5. Recall the given reaction,                          BaCl2 aq + Na2SO4 aq → NaCl aq + BaSO4 s250…

Q: Consider these reactions, where M represents a generic metal.  1.     2M(s) + 6HCl(aq) yields to…

A: The reactions given are 1. 2 M (s) + 6 HCl (aq) -----> 2 MCl3 (aq) + 3 H2 (g)…

Q: In this reaction, 2 Al(OH)3(s) + 3 H2(g) + energy ⟶ 2 Al(s) + 6 H2O(g) ____ and heat is transferred…

A: Exothermic reaction: Exothermic reactions are reaction in which energy is released from the system…

Q: 24. Consider the following thermochemical equation sometimes used for H2S production: S8(s) + 8…

A: The given reaction is :  S8(s) + 8H2(g) = 8H2S(g)  ∆Hrxn = -20.2 kJ  From the reaction it is clear…

Q: __P4(s) + __Cl2(g) --> __PCl5(g)        H°rxn = –1500 kJ       In a reaction mixture of 0.22 g(P4)…

A: We are given an unbalanced reaction.  So first we have to balance the equation.  While balancing, we…

Q: Consider the following reaction: CO2(g)+ 3H2(g) 2 CH4(g) + H20(g) AH=+46.7 kJ If heat is added to…

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Q: If for the reaction: 4Fe(s) + 302(g) →→→→2Fe₂O3(s) AHran-1648 kJ/mol rxn, then for the reaction:…

A: The thermochemical equations can be treated as algebraic equation which can be added,  subtracted,…

Q: The thermite reaction, Fe2O3(s) + 2 Al(s) ---->2 Fe(s) +Al2O3(s), ΔH° = -851.5 kJ/mol, is one of…

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Q: Calculate the total enthalpy change (kJ) for the following reaction:   H2O (s, 90 g, –10. oC)…

A: In the above process, 3 steps are involved 1) Heating of 90 grams ice from –10 oC to 0 oC  2) fusion…

Q: 5.00 g of potassium hydroxide (molar mass = 56.1 g/mol) dissolves in 100.0 g of water and the…

A: The heat of a substance is given as :

Q: Use the data below to determine the ΔHrxn for the following reaction: S=S(g) + H2(g) è H-S-S-H(g)…

A: ∆Hrxn can be seen using given bond energies values.