Given that Hvap is 58.2 kJ/mol, and the boiling point is 83.4C, 1atm, if one mole of theis substance is vaporized at 1atm, calculate Ssurr

Q: se the Standard Enthalpies of Vaporization and Fusion given below to answer the following question .…

A: Enthalpy of fusion is given to be 6.01 kJ/mol. This means that 6.01 kJ of heat is released when 1…

Q: NH3(g) + 3 O2(g) → 2 N2(g) + 6 H2O(g) If the standard molar heats of formation of ammonia, NH3(g),…

A: Given -  standard molar heats of formation ammonia, NH3(g) = - 46 kJ/mol gaseous water, H2O(g) =…

Q: What is the change in temperature if 1 kilogram of sodium chloride is heated to produce 859.0 J of…

A: Given,  Mass of sodium Chloride, m = 1 kg = 1000 g  Heat, q = 859.0 J Specific heat of NaCl, c =…

Q: A 455-g sample of nickel at 124oC is placed in 75.0 mL of water at 20.0oC. What is the final…

A:

Q: Calculate the standard enthalpy of formation of solid calcium carbonate (CaCO3) using the following…

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Q: 11. A 0.325 g sample of ethanol (C2H6O) is placed in a bomb calorimeter (heat capacity of 5.51…

A:

Q: calorimeter with the heat capacity of 36.50 kJ/C. During the combustion the temperature of the water…

A: Heat capacity(C) = 36.5 kJ/C □T = 3.87 °C Heat (q) = C.□T  = 36.5  × 3.87   = 141.26 KJ

Q: 9.54 The phase change between graphite and diamond is dif- ficult to observe directly. Both…

A: Given- C(graphite)+O2->CO2.          ∆H°=-393.51kJ  C(dimond)+O2->CO2.…

Q: 15. A 150.0 g sample of a metal at 75.0 °C is added to 150.0 g H20 at 15 °C. The temperature of the…

A: A 150.0-g sample of a metal at 75°C is added to 150.0 g of H2O at 15.0°C H2O. The temperature of the…

Q: The specific heat capacity of copper is 0.384 J /g* degrees C. What is the molar specific heat…

A: For copper, Specific heat capacity, Cs = 0.384 J / g ℃ Molar mass, M = 63.54 g mol-1 Molar heat…

Q: Calculate q when 0.10 g of ice is cooled from 10.°C to 275°C (cice = 2.087 J/g⋅K).

A: The given data contains, mass = 0.10 g. heat capacity=2.087 J/K.g

Q: The complete combustion of 0.691 g of a snack bar in a calorimeter (Ccal = 6.15 kJ/°C) raises the…

A:

Q: Use the following data to determine whether the conversion of diamond into graphite is exothermic or…

A: Thermodynamic is the branch of chemistry that mainly deals with the heat transfer between system and…

Q: Calculate ΔH for the process Hg2 Cl2(s) ⟶ 2Hg(l) + Cl2(g)from the following information:Hg(l) +…

A: Given: First need to reverse the equations, and then do the addition as the question is requiring…

Q: 7. Calcium chloride, is added to a canned vegetables to maintain the vegetable's firmness. When…

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Q: When a 4.18 g  sample of solid sodium hydroxide was dissolved in a calorimeter in 120.0 g  of water,…

A: ΔH (in kJ/mol NaOH) for the following solution process is to be calculated NaOH(s)→Na+(aq)+OH−(aq)

Q: A coffee-cup calorimeter is used to determine the specific heat of a metallic sample. The…

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Q: A stainless steel lawn mower blade with a mass of 0.950 kg is being forged. During the process, the…

A: Heat released by steel is equal to heat gain by water.

Q: A 1.13-g sample of glucose (C6H1206) is burned in a constant-volume calorimeter that has a heat…

A: Given , mass of glucose , m=1.13 g heat capacity Cg=14.0 KJ/°C Initial temperature, Ti=17.7°C Final…

Q: Given the following thermochemical equation: CaCO3(s) → CaO(s) +CO2 (g)…

A: Given, The following thermochemical equation: CaCO3(s) → CaO(s) +CO2 (g)…

Q: When 1.2 g of fructose, C6H12O6(s), a sugar commonly found in fruits, is burned in oxygen in a bomb…

A: The given data contains, mass of fructose = 1.2 g Heat capacity of bomb calorimeter = 8.41 kJ/°C…

Q: A sample of aluminum with a mass of 53.4 g is initially at 156 ∘∘ What is the temperature of the…

A: Specific heat (C) :-  The amount of heat required to raise the temperature of 1 gram of a substance…

Q: 1. 1. Zinc metal reacts with HCl according to the following equation: Znw + HClag) → ZnClz{aq) +…

A: The formula for density is, Rearranging it to calculate the mass from volume and the density of…

Q: Methanol is the fuel in "canned heat" containers (e.g., Sterno) that are used to heat food at…

A:

Q: Methanol is the fuel in "canned heat" containers (e.g., Sterno) that are used to heat food at…

A: From the given equation, combustion of  2 moles of methanol produce -1199 kJ  We know molar mass of…

Q: Isooctane (C8H18; density = 0.69 g/mL) is one of the many hydrocarbons that make up gasoline. Use…

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Q: When a 4.18 g sample of solid sodium hydroxide was dissolved in a calorimeter in 120.0 g of water,…

A: ΔH (in kJ/mol NaOH) for the following solution process is to be calculated NaOH(s)→Na+(aq)+OH−(aq)

Q: When a 10.0 g metal sample (0.85 J/goC) at 110.oC is placed in an insulated cup of water at 25oC,…

A: According to Law if calorimetry Heat absorbed by a system = heat released by another system Here the…

Q: Ethylene glycol, used as a coolant in automotive engines, has a specific heat capacity of 2.42…

A: Mass, m=3.65 kg=3650 g Specific heat capacity, c= 2.42 J/(g·K) Tfinal=85°C=358.15K…

Q: Liquid butane combust in air. Predict the sign for Delta G, Delta S, and Delta H at 25 C:

A: The balanced chemical equation for combustion of butane will be- 2C4H10 (l)  +  13O2 (g)     →…

Q: The complete combustion of 0.651 g of a snack bar in a calorimeter (Ccal = 6.15 kJ/°C) raises the…

A: Given information:Mass of a snack bar = 0.651 gTemperature = 1.65 °CCcal = 6.15 kJ/°C

Q: Compressed helium is often used to inflate balloons. If a balloon has an initial volume of 0.0 L is…

A: In thermodynamic the work is defined as the energy exchanged between the system and surrounding due…

Q: Consider the following generic chemical equation whose ΔHrxn is unknown. Target: 2A+7B⟶4X Instead,…

A:

Q: Is the following process exothermic or endothermic?   2H(g) ⟶⟶ H2(g)

A: When energy is released in a reaction, this reaction is known as exothermic reaction. While, When…

Q: 9. Given 2Als) + 3/2 O2(g) → Al2O3(s) AH = -1670 kJ What is AH for the reaction? 2Al2O3(s) → 4Al(s)…

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Q: 15.Object A specific heat is 2.45 J/g.°C and object B specific heat is 0.82 J/g-°C. Which object…

A: The amount of heat required to increase the temperature of one kilo gram of a substance by one…

Q: At a given set of conditions, 241.8 kJ is given off when 1 mol of H₂O(g) forms from its elements.…

A: Given information: Case-1 : 241.8 kJ is given off when 1 mole of H₂O(g) forms from its elements.…

Q: A chemist measures the enthalpy change AH during the following reaction: P4(s) + 6 Cl,(9)→4 PCI3(g)…

A: Enthalpy of reaction is the difference of total enthalpies between reactant and product.  ∆H = total…

Q: :Given the thermochemical equation 2NO2 (g) → 2NO(g) + O2(g) ΔΗ -114 kJ what is the AH for the…

A: Calculate the enthalpy of the given reaction----

Q: CaCOg(s) -> CaO(s) +CO2 AH=177.8 kJ/mol What is the change in the internal energy for the reaction…

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Q: Methanol is the fuel in "canned heat" containers (e.g., Sterno) that are used to heat food at…

A: Given :-  2CH3OH(l) + 3O2(g) →2CO2(g) + 4H2O(l)  ∆H° = -1199 kJ  Amount of methanol = 54.5 g  To…

Q: It takes 15.5 kJ of energy to raise the temperature of 2.67 mol of substance from 25.0°C to 70.0°C.…

A:

Q: When 2046 J of heat energy is added to 47.6 g of hexane, C6H14, the temperature increases by 19.0…

A: In this question we want to determine the value of molar heat capacity of hexane.  You can see…

Q: 10. A handful of sliced potatoes (c=4.20 J/g°C) are dropped into 1250 grams of hot oil (c = 2.00…

A:

Q: Calculate qrxn for the reaction that occurs when 25.0 mL of 1.00 M HCl are added to 25.0 mL of 1.00…

A: The volume of 1.00 M HCl added to the 25.0 mL of 1.00 M NaOH is 25.0 mL. The initial temperature is…

Q: A 15.0 g sample of lead is at room temperature (23°C). Calculate the final temperature of the sample…

A: change in temperature = (Heat provided)/((SPecific heat)*(weight of sample)) =100/((0.13)*(15))…

Q: As shown here, one type of computer keyboard cleaner contains liquefied 1,1-difluoroethane 1C2H4F22,…

A: The degree of randomness is called entropy. Entropy in the high-pressure region is high due to the…

Q: Two different gases occupy the two bulbs shown here. Consider the process that occurs when the…

A: Change in enthalpy is defined as the heat absorbed at constant pressure while the change in entropy…

Q: The value of ΔS° for the formation of calcium chloride from its constituent elements,            Ca…

A: Entropy is the randomness of particles.

Q: When a 25.0 g sample of AgNO3 dissolves in 100.0 g of water in a calorimeter, the temperature drops…

A: Given that,  Amount of AgNO3 dissolves in water w = 25 g Molar mass of AgNO3  Mw = 169.87 g/mol…

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.