Why oil and water cannot be mixed spontaneously? Given the n-butane is mixed with water, the enthalpy change is ∆H = -4.3 kJ/mol, but the mixing of n-butane with water is not spontaneously. Please give the reason for this phenomenon based on solvent effect.

Q: Given the following reactions, estimate the overall enthalpy change for dissolution of solid sodium…

A: The provided reactions are Na(s) + H1/2(g) + O1/2(g) → NaOH This chemical reaction also can be…

Q: Chemical reaction: CH3OH(aq) + C3H602(aq) → C4H8O2(aq) + H2O(1) methanol + propanoic acid → methyl…

A: The answer to the following question is-

Q: Given the heat capacities at constant pressure, Cp, in J/K-1mol-1 for the substances A, B, and C as…

A: In this question, we want to determine the value of ∆rH° at 2000°C temperature.  How we can…

Q: The standard heat of the reaction, C2H4(g) + 2Cl2 (g) --> C2HCl3(l) + H2(g) + HCl(g) is ∆Hr° =…

A: The change in the internal energy of a system is the sum of the heat transferred and the work done.…

Q: Using a coffee cup calorimeter, 3.61 g of ammonium chloride, NH4Cl is added to 100.0 g of water at…

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Q: 13.4 g of NH4Cl is dissolved in 150 mLof water in a coffee-cup calorimeter, and the temperature of…

A: The amount of heat is calculated by the formula,  q = m C∆T Where,   q represents heat m represents…

Q: When a 6.00 g6.00 g sample of KSCNKSCN is dissolved in water in a calorimeter that has a total heat…

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Q: When 2.35g Mg(OH)2 is added to 250.0 mL of water, the temperature of the water raises from 20.5°C to…

A: Solution A standard molar reaction H, ΔrH∘ , is that the same because the molar integral reaction H…

Q: When 25.0 mL of 0.25 mol/L LiOH and 25.0 mL of 0.25 mol/L HCl are mixed together, the temperature…

A: Specific heat formula The equation that is used to calculate the amount of energy, in Joules (J),…

Q: Calculate the standard enthalpy change in kJ for the given reaction. CH4 (g) + N2 (g) --> HCN (g) +…

A: The chemical reaction :  CH4(g) + N2(g) ---> HCN(g) + NH3(g)  Enthalpy of formation of : CH4(g) =…

Q: 1)State the First Law of Thermodynamics.

A: (1) First law of thermodynamics -  According to first law of thermodynamics " Energy can not be…

Q: How will forgetting to start recording the temperature until after adding the HCl to the NaOH in the…

A: The heat released during the reaction can be calculated as follow,

Q: Given the standard enthalpy changes for the following two reactions: (1) 4C(s) + 5H2(g)–C¿H10(g) AH°…

A: Given  4C(s) + 5H2(g)  ------>  C4H10 (g)               ∆H°  = - 125.6 KJ       ( Equation 1 )…

Q: what is the change in the enthalpy in kj/kg for the complete combustion of 39.0 g of fructose,…

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Q: Which combination will give you the enthalpy change for the hydrogenation of ethene to ethane, AH3?…

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Q: Calculate the change in internal energy (ΔE) for a system that is giving off 25.0 kJ of heat and is…

A: Heat given Q = 25.0 kJ  Initial volume Vi = 12.00 L  Final volume Vf = 6.00 L Constant pressure P =…

Q: Enthalpy change for the final reaction = (2*1.638 kJ) - (3.0225 kJ) = 0.2535 kJ 1. Comment on why…

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Q: (1) 4C(s) + 5H2(g)–C„H,,(g) AH° = -125.6 kJ %3D (2) C2H2(g)2C(s) + H,(g) AH° = -226.7 kJ what is the…

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Q: When 12.0 g (0.100 mol) of MgSO,(s) is dissolved in water in a constant pressure calorimeter, the…

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Q: everything needed is included, there is no other info i can provide Questions 1. The following…

A: The standard molar enthalpy of a reaction is calculated using the following expression, The given…

Q: Calculate the standard enthalpy change for the reaction below. 12NH3(g) + 21O2(g)  8HNO3(l) +…

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Q: Calculate the standard enthalpy (kJ) change of the preparation of nitric acid below: 4NH3(g) + 502g)…

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Q: Find the ∆H of the reaction. Show the complete and step by step solution. PCl5(g) -> PCl3(g) +…

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Q: 8. For the reaction: Ca(OH)2(s) + CO2(g) – CaCO3(s) + H2O(1) a. Balance the reaction b. Use the…

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Q: Using the thermodynamic tables find the enthalpy of reaction for the reaction       B2H6 (g)   +   6…

A: Given reaction is : B2H6(g) +6F2(g)→2BF3(g)+6HF

Q: Using the three reactions below, determine change in enthalpy (kJ) for the combustion of ethane…

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Q: The complete combustion of ethanol, C2H5OH 1molar mass =46.0 g>mol2, proceeds as…

A: Calculate the number of moles of ethanol. Number of moles of ethanol = Given mass of ethanolMolar…

Q: (What is meant by "enthalpy" change of + 124KJ 2 How would the following changes affect the…

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Q: Consider the combustion of liquid methanol, CH3OH(l):CH3OH(l) + 3/2O2(g)----> CO2(g) + 2 H2O(l)…

A: a. The enthalphy change in the reverse reaction would be in the positive sign = +726.5 kJ

Q: Given the standard enthalpy changes for the following two reactions: (1) 4C(s) + 5H2(g) ->…

A: 4C(s)  +  5H2(g)   ---->   C4H10(g)         ΔH° = -125.6 kJ C2H2(g)   ---->    2C(s)   +…

Q: 10.71 g of MgSO₄ is placed into 100.0 mL of water. The water's temperature increases by 6.70°C.…

A: density is defined as the mass of an object upon the volume of spaced occupied density d = mass of…

Q: A student mixed 50 ml of 1.0 M HCl and 50 ml of 1.0 M NaOH in a coffee cup calorimeter and…

A: The molar enthalpy for the second trial will be -54 KJ/mol

Q: 3. The heat of the solution of a solid sample was determined using a coffee cup calorimeter that…

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Q: the standard enthalpy of combustion of octane, -5,430kj/mol, applies to the following reaction…

A: C8H18 + 252O2   →8CO2 +  9H2O                 ∆H°=-5,430KJ/mola) 1 mole of combustion ocatne , takes…

Q: In a coffee-cup calorimeter, 1.59 g NH4NO3 is mixed with 74.3 g water at an initial temperature of…

A: Enthalpy change of dissolution is calculated as : ∆H = - q / n  where , n = moles  q = heat of…

Q: During an experiment where 50.0 mL of a 1.0 M acid solution was mixed with 50.0 mL of a 1.0  M base…

A: Given,  The ∆Hrxn is : when 50.0 mL of a 1.0 M acid solution was mixed with 50.0 mL of a 1.0 M base…

Q: State the First Law of Thermodynamics.

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Q: 5 grams of an unknown compound was dissolved in 75 ml of water with an initial temperature of 22.5°C…

A: Given that: Mass of sample = 5 g The volume of water = 75 mL Initial temprature = 22.5 oC Final…

Q: Use the standard reaction enthalpies given below to determine ΔH°rxn for the following reaction:…

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Q: Consider the molar enthalpy change for this neutralization reaction:…

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Q: 1. When 25.0 mL of 0.25 mol/L LiOH and 25.0 mL of 0.25 mol/L HCl are mixed together, the temperature…

A: Given that,     Volume of 0.25mol/L LiOH  = 25.0ml Volume of 0.25mol/L  HCl  = 25.0ml A general…

Q: Determine the standard enthalpy (ΔH) for this reaction and explain the cooling effect that is…

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Q: The molar enthalpy change for the neutralization reaction: HCl(aq)+NaOH(aq)⟶NaCl(aq)+H2O(l) is ΔrH°…

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Q: CaO + H2O ->Ca(OH)2      heat = -64.8kJ/mol, how much heat liberated when 7.15g CaO is dropped into…

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Q: Describe how temperature change, both positive and negative, is a determinant of heat.    2.) If a…

A: these are multiple question . I solve first one only other part upload seperately. Thankyou

Q: 5 grams of an unknown compound was dissolved in 75 ml of water with an initial temperature of 22.5°C…

A: Given that: Mass of sample = 5 g Volume of water = 75 mL Ti = 22.5 oC Tf = 33.2 oC To find: Heat…

Q: 4.00g of NaOH (40.0g/mol) is dissolved in 100.00g of distilled water. The temperature of the water…

A: Working formula Q = m*S* (change in temperature) The enthalpy change of the reaction (Heat released/…

Q: Combustion of glucose (CH0 is the main source of energy for animal cells: CH,0) + 60/g) → 6C0,(g) +…

A: The given data contains, ∆Greaction =-2872 kJ.Number of aminoacids=84