The standard enthalpy of formation for one mole of methanol (CH;OH) is -239 kJ. What is this value in kcal (1 cal = 4.18 J)?

Q: If the specific heat of a solution is 4.18 J/goC, and you have 161 mL (1.03 g/mL) which increases in…

A: Mass of solution in grams is determined as follows,

Q: What is the specific heat (J/g∙°C) of a metal object whose temperature increases by 3.0°C when 17.5…

A: The specific heat capacity (c) in J/goC is calculated as shown below where Q, m, and ΔT are the…

Q: In the following reactions, identify the physical states of the products and reactants and indicate…

A: Exothermic is the process or reaction that releases energy in the form of heat. Another way of…

Q: how much energy (in kcal) is required to convert 122.2 g of benzene (c6h6) from a liquid to a gas,…

A:

Q: Perform the conversions between energy units. 411 kJ = 2885 kcal = kJ 6.49 x 106 J = kcal

A: Energy unit conversations.

Q: Convert between energy units. a. 231 cal to kJ b. 132 x 10* kJ to kcal d. 2.88 x 10* J to Cal c.…

A: Convert between energy units. (a) 231 cal to kj (b) 132 × 104 kj to kcal (c) 4.99 × 103 kj to kWh…

Q: CH4(g) + 2O2(g) CO2(g) + 2H2O(l) This  reaction occurs spontaneously as written when all reactants…

A: Step 1: The standard Gibbs energy change for a process is defined as a change in which the reactants…

Q: How many Joules are there in 2001 calories? (1 cal = 4.18 J)

A: Unit conversion is done by using common measurement units.

Q: A 0.37 g Cheeto is burned and the heat produced is used to heat 50 grams of water from 22.1 degrees…

A: Mass of Cheeto=0.37 g Mass of water=50 g Initial temperature =22.1°C  Final temperature=34.4°C…

Q: Perform the conversions between energy units. J 558 kJ = kJ 2565 kcal = kcal 8.63 x 106 J =

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Q: Which of these constants does this expression represent? [H][OH] Kf Ka Kw Kb

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Q: CS2(l) + 4H2(g) CH4(g) + 2H2S(g) This reaction occur spontaneously as written when all reactants and…

A: The standard Gibbs free energy of given reaction is determined as,

Q: How many calories are in 6901 J ?

A:

Q: Combustion reactions are exothernic. The heat of reaction for the combustion of cyclohexane, CH2, is…

A: Heat of reaction for combustion of cyclohexane C6H12= 936.8 Kcalmol

Q: 24.0 g of metal at 78.3°C is cooled to 12.4°C and produces 194 J of heat. What is the specific heat…

A: Mass of substance M = 24.0 g  Initial temperature = 78.3 °C  Final temperature = 12.4°C  Heat…

Q: Suppose you burn a 2.6 g sample of potato chips. You use the heat given off from that process to…

A: Given: The mass of the potato chips burned = 2.6 g The amount of water = 26.0 g The initial…

Q: When 0.220 g of sodium metal is added to an excess of hydrochloric acid, 2290 J of heat are…

A: Given: 2 Na + 2HCl -----> 2NaCl + H2 when, mass of Na = 0.220g , heat released = 2290J

Q: How many calories are in 8771 kJ ? (1 cal = 4.18 J)

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Q: Consider the following reactions: A B AGn 3 kJ/mol C- B AGrn = 37.3 kJ/mol !3! What is the value of…

A:

Q: 9.69 x 10^6 J = ? Kcal

A: Given :-  energy = 9.69 x 106 J  To convert :-  The above energy in Kcal

Q: Convert between energy units.a. 231 cal to kJ b. 132 * 104 kJ to kcalc. 4.99 * 103 kJ to kWh d. 2.88…

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Q: Convert 231 cal to kj

A: Conversion factor is the ratio that provides the relation between distinct units of the same…

Q: Assuming the density of the wine to be 1.0 g/mL, what is the caloric content due to the alcohol…

A: Given: The heat of combustion of ethanol=-1367 kJ/mol The wine contains, by mass 12.1% ethanol The…

Q: What type of reaction is CH4(g) +2 O2(g) CO2(g) + H2O0 + 890.4 kJ? ectothermic O unbalanced O…

A: The given reaction is CH4(g)+ 2O2(g) → CO2(g) + H2O(l). It is a combustion reaction.

Q: How much heat in kcal must be added to 0.47 kg of water at room temperature (20°C) to raise its…

A: Specific heat :- The amount of heat required to rise the temperature of 1 gram or 1 kg of a…

Q: di H:(SO,) + Fm(OH), →

A: Step by step solution are below

Q: The heat of reaction for the combustion of hexane, C6H14, is 995.0 kcal/mol. What is the heat of…

A: The heat change in a particular reaction is known as enthalpy change (∆H). The endothermic reactions…

Q: Calculate the standard enthalpy for the reaction: 4NH3(g) + 502(g) - 4NO(g) + 6H2O(g), given the…

A: Enthalpy change of a reaction is an extensive property, it depends on stoichiometry of the chemical…

Q: The Joule (J) is the SI unit of energy. 1 calorie (cal) = 4.184 J; 1 Calorie (Cal) = 1000 cal = 1…

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Q: If the monthly electricity consumption of a household is 6,619 kWh, what is this consumption…

A: 1 kWh = 3600 kJ

Q: NaOH(s)_> Na*(ag) + OH (ag), AH1 (kJ) (1) + Na (ag) + OH (ag) + H*(ag) + Cl(ag)_-> H2O(I) + Na*(ag)…

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Q: How much energy (in Calories, ie. kcal) was produced by burning the Goldfish?  (Specific Heat of…

A: Mass of water = 100.116 g Change in temp. = 5.1°C = 5.1 K Specific Heat Capacity of water = 4.184…

Q: Is dissolving AgNO3 in water an exothermic or endothermic process? What about dissolving MgSO4 in…

A: A chemical reaction in which heat energy is released is called exothermic reaction. Enthalpy is…

Q: is 2 NO2(g)   → N2O4(g) + 19 kcal a exothermic or endothermic

A: In simple words,  Endothermic reaction - when heat is absorbed , the reaction is endothermic.…

Q: Which of the following physical processes is exothermic? a. evaporation of alcohol b. melting of…

A: Concept  1) release of energy is known as exothermic process.  2) absorption of energy is called…

Q: A list of the calorie content of foods indicates that a cup of frozen strawberries contains 224…

A: Change 224 calory to Joule and KJ

Q: How much heat, in joules, must be added to a 95.8 g iron block with a specific heat of 0.509 J/g °C…

A:

Q: A list of the calorie content of foods indicates that an enchilada contains 230. Calories. Express…

A: A list of the calorie content of foods indicates that an enchilada contains 230. Calories. We have…

Q: Combustion reactions are exothermic. The heat of reaction for the combustion of cyclopentane, C;H10,…

A:

Q: The reaction for the combustion of propane is   C3H8(g)+5O2(g)⟶3CO2(g)+4H2O(l)…

A: Given combustion reaction;  C3H8(g) + 5O2(g) ---> 3CO2(g) + 4H2O(l)  delta(H) = -526.3 kcal/mole…

Q: Industrial production of nitric acid, which is used in many products including fertilizers and…

A: GIVEN, chemical reaction :  4 NH3(g) + 5 O2(g) → 4 NO(g) + 6 H2O(g) mass of NH3 = 7.000 x 103 g

Q: The heat of reaction for the combustion of pentane, C5H12, is 838.7 kcal/mol. What is the heat of…

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Q: +3 CO(g) 2 Fe(s) + 3 CO2(g) 3 02(g) → 2 Fe203(s) AH = -1648 kJ → 2 CO(g) + 02(g) AH= +565.4 kJ

A: (1) 4Fe + 3O2----> 2Fe2O3, □H = -1648 kJ (2) 2CO2 ----> 2CO + O2, □H = +565.4 kJ (3) Fe2O3 +…

Q: The specific heats of Al, Cu, and Fe are 0.900 J/g° C, 0.385 J/g°C, and 0.444 J/

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

Q: Perform the conversions between energy units. 633 kJ = 2325 kcal %3D kJ 9.01 x 10 J = kcal

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Q: CO(g) +2 H2(g) CH3OH(1) AH° =-128.1 kJ

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Q: Perform the conversions between energy units. 588 kJ = J 3425 kcal = kJ 8.97 x 106 J = kcal FEB 23

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Q: To the cooled anhydrate, CuSO4, of Part I, a student added about 5 mL of distilled water and then…

A: This is an exothermic reaction. when water is added to anhydrous white crystal of copper sulphate…

Q: A    =   2 B        Δ H = + 24 kcal   Is the above reaction exothermic or endothermic?   Is heat…

A:

Q: When we see that 10 gummy bears are 80 Calories meaning that each bear is 8 Calories, this really…

A: 10 gummy bears = 80 calories.  1 gummy bear = 8 calories. 1 calorie = 4.184 J 1 kJ = 1000 J.

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.