The Enthalpy of Vaporization of 1-chlorobutane, C4H9Cl, is 30.4 kJ/mol at a boiling point of 78.6 °C.  How much energy must be added to a 121.35g sample of 1-chlorobutane at its boiling point in order to vaporize the entire sample?

Q: The evaporation of water is endothermic:H2O(l) → H2O( g) ∆Hrxn = +44.01 kJWhat minimum mass of water…

A: Determination of no. of mol of H2O that will evaporate from 175 kJ/mol: n=175 kJ44.01 kJ/mol=3.9764…

Q: Dimethyl ether, a useful organic solvent, is prepared in two steps. In the first step, carbon…

A: According to Hess’s law of constant heat summation, the total enthalpy change for a reaction is the…

Q: How much heat must be absorbed by 125 gg of ethanol to change its temperature from 21.5 ∘C to 34.8…

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Q: If the specific heat of methanol is 2.51 J/K-g, how many joules are necessary to raise the…

A: Given, mass of methanol = 94 g C= 2.51 J/K g Tf = 79°C = 273+79 = 352 K Ti = 26°C = 273 + 26 = 299 K…

Q: Write the thermochemical equation for the following reactions that occur at constant pressure: (a)…

A: In a chemical reaction, some of them require energy to convert reactants to product, such reactions…

Q: When 1 mol of CS₂(l) forms from its elements at 1 atm and 25C, 89.7 kJ is absorbed, and it takes…

A: The enthalpy change of the following reaction is ∆H1. The enthalpy change of the following reaction…

Q: Nitric oxide (NO) can be formed from nitrogen, hydrogen and oxygen in two steps. In the first step,…

A: Let us consider; N2(g)+3H2(g)→2NH3(g)                             ;   ∆H1=-92kJ…

Q: Under constant-volume conditions, the heat of combustion of glucose (C6H6O6) is 15.57 kJ/g. A…

A: Solution -

Q: How much energy is absorbed by a 2.5 g substance that has a specific heat capacity of 0.58 J/g ·°C…

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Q: 9. The evaporation of water is endothermic: H2O (1) → H2O (g) AH°rxn = 44.01 kJ/mol What minimum…

A: H°rxn = 44.01 kJ / mol

Q: Duncan knows that it takes 36400 calcal of energy to heat a pint of water from room temperature to…

A: Duncan knows that it takes 36400 calcal of energy to heat a pint of water from room temperature to…

Q: An engineering student wants to study the heat transfer between a 50 g of heated block of iron (cFe…

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Q: Dimethyl ether, a useful organic solvent, is prepared in two steps. In the first step, carbon…

A: According to Hess's law  The enthalpy of a reaction is the same whether if it takes place in one…

Q: How much energy is required to change the temperature of 15.0 g Fe from 18.5oC to 56.8oC? The…

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Q: Potassium nitrate, KNO,, has a molar mass of 101.1 g/mol. In a constant-pressure calorimeter, 20.9 g…

A: Given data : Molar mass of KNO3 (MK)= 101.1 g/mol Mass of KNO3 (mK) = 20.9 g Mass of water (mw) =…

Q: The addition of 3.15 g ofBa(OH)2•8H2O to a solution of 1.52 g of NH4SCN in 100 g of water in a…

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Q: Under constant-volume conditions, the heat of combustion of benzoic acid is 26.38 KJ/g. A 2.760-g…

A: The change in temperature,∆T is calculated below.

Q: A sample of ammonia goes through a temperature change of +39.63 °C while absorbing 603.9 joules of…

A: Given, Temperature change (∆T) = 39.63 °C Amount of heat absorbed (Q) = 603.9 J Specific heat…

Q: Nitric acid can be formed in two steps from the atmospheric gases nitrogen and oxygen, plus hydrogen…

A: Enthalpy is a state function  do it does not depend on the path it travelled as well as extensive…

Q: Choose all of the processes from below which describe changes which are independent of the path by…

A: Concept - There are two types of functions - 1. Path functions, these are the properties or…

Q: What mass of aluminum metal would absorb 250.0 kJ when it melted at its melting point? The molar…

A: One gram of aluminium metal absorbs 396.6 Joule heat.

Q: Dissolving 3.0g of CaCl2 in 150.0g of water in a calorimeter at 22.4oC causes the temperature to…

A: Given,  Mass of CaCl2 = 3 g  Molar mass of CaCl2 = 110.98 g/mol Mass of Water, m = 150 g  Initial…

Q: what quantity of heat energy must have been applied to a block of aluminum weighing 38.4g of the…

A: The total heat required (Q) is determined as follows. Q=mAlcAl∆T ...... (1)

Q: The familiar "ether" used as an anaesthetic agent is diethyl ether, C4H20O. Its heat of vaporization…

A: According to the mole concept, in terms of mass, the amount of substance in moles is equal to the…

Q: What is the specific heat of a 74.01g piece of an unkown metal that exhibits a 45.2 Celcius…

A:

Q: A 0.600 g sample of tristearin (C57H11O6), a common fat, is combusted in a bomb calorimeter…

A: Given: Mass of C57H11O6 = 0.600 g. Mass of water = 750.0 g. Heat capacity of calorimeter = 326 J/K.…

Q: The amount of energy required to raise the temperature of a substance by 1 K (1 °C) is its heat…

A: We have to conclude what is the term called in chemical thermodynamics when 1g of substance is…

Q: What is the resulting temperature when 100 g of water at 75°C is mixed with 30 g of ice at 0 °C?…

A: Mass of water =Mw = 100 g Temperature of water Tw = 75°C Specific heat of water =cw =  4.184 J/g°C…

Q: The combustion of 1.00 mol of glucose (C6H1206) liberates 2820 kJ of heat. If 1.79 g of glucose is…

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Q: If 14.8 kJ of heat is given off when 1.6 g of HCl condenses from vapor to liquid, what is ∆Hcond for…

A: Given: Heat= 14.8 kJ Mass of HCl= 1.6g To find: ∆Hcond for the substance

Q: Calculate the enthalpy of methanol (CH 3OH (l) (MW=32.0 g/mol), if a 2.885 g sample of methanol is…

A: Heat capacity of bomb calorimeter C = 727.1J/0C Change in temperature ∆T = 11.380C mass of methanol…

Q: When 1 mol of CS2(l) forms from its elements at 1 atm and 25 ° C,  89.7 kJ  is absorbed, and it…

A: Hess law of constant heat summation: This law states that regardless of the multiple stages or steps…

Q: The thermochemical equation for the combustion of hexane, C6H14(g), is: 2C,H14(g) + 1902(lg) →…

A: During an exothermic reaction, heat is released and the value of the enthalpy of the reaction is…

Q: If 50.0 g of water change in temperature from 22.5 to 25.4 deg C and the specific heat capacity of…

A: Amount of heat required is given by, q =m.c.∆T where q is the heat required, m is the mass, c is the…

Q: 76. The evaporation of water is endothermic: H2O(1) – → H,O(g) AHxn = +44.01 kJ %3D What minimum…

A: The evaporation of water is an endothermic process. The enthalpy of evaporation is given by: The…

Q: A 1.800-g sample of phenol (C6H4O2) was burned in a bomb calorimeter whose total heat capacity is…

A: Total heat(q) produced by 1.800 g of phenol can be calculated using following expression…

Q: How much heat evolves from burning 16.4 g of sulfur, S8, in air? S8 + 8 O2 ----> 8 SO2 H rxn=…

A:

Q: Under constant-volume conditions, the heat of combustion ofbenzoic acid 1C6H5COOH2 is 26.38 kJ>g.…

A:

Q: A 0.692 g sample of glucose (C6H12O6) is burned in a bomb calorimeter. The temperature of 575g of…

A: Given mass of glucose is 0.692 g. Given mass of water is 575 g, specific heat of water is 4.184…

Q: A 80.8 g chunk of granite (specific heat: 0.79 J/g°C) is heated to 225.7 °C and dropped into a…

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Q: How much energy, in J, is required to raise the temperature of 1 kg of water from 37oC to 39.5oC?…

A: Given, The energy, in J, is required to raise the temperature of 1 kg of water from 37oC to 39.5oC…

Q: Under constant-volume conditions, the heat of combustion ofbenzoic acid (C6H5COOH)is 26.38 kJ/g. A…

A: a) We as to find the total heat capacity of the calorimetric    we find the total heat=   mass of…

Q: How much energy is needed to raise the temperature of 400 g of argon from 25ºC to 40ºC? The specific…

A: The mass of the argon is = 400 g Increase in the temperature is = 25oC to 40oC The heat capacity of…

Q: The heat capacity of silicon dioxide (SiO2, 60.1 g mol-1), is 0.732 J g¬ K-1. Calculate the energy…

A: The heat capacity of SiO2 is = 0.732 J g-1 K-1 The molar mass of SiO2 is =60.1 g.mol-1 The moles of…

Q: How much energy is evolved as heat when 4.7 L of water at 0 °C solidifies to ice? (The heat of…

A: We know that  Density of water = 1 g/mL Mass of water = density of water x volume Mass of water = 1…

Q: NO3KNO3 is dissolved in 229 g of water at 23.00 °C.   KNO3(s)−→−−H2OK+(aq)+NO−3(aq)   The…

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Q: If the specific heat of methanol is 2.51 j/k-g, how many joules are required to raise the…

A: specific heat of methanol = 2.51 J/K-g amount of methanol = 50 g  initial temperature = T1 = 20 oC…

Q: If the specific heat of methanol is 2.51 J/K-g, how many joules are necessary to raise the…

A: Given: Specific Heat of methanol(c)=2.51J/K-g Mass of methanol(m)=94 g Initial…

Q: Suppose 2.32 kJ of heat is added to 25.4 g of ethanol at 18.71 °C. The specific heat capacity of…

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Q: The heat of combustion of benzoic acid, HC7H5O2, is 26.38 kJ/g. A 1.640 g sample of benzoic acid is…

A: