A 5.00 grams of LiOH is dissolved in 100.0 grams of water in a perfect calorimeter. Calculate the change in temperature for the solution (ΔT). LiOH (s)  Li+ (aq) + OH– (aq) ΔH = –23.56 kJ

Q: Zinc metal reacts with hydrochloric acid according to the following balanced equation:…

A: Given reaction is:    Zn (s) + 2 HCl (aq) → ZnCl2 (aq) + H2 (g)

Q: When 50.0 mL of 1.60 M of HCl(aq) is combined with 50.0 mL of 1.70 M of NaOH(aq) in a coffee-cup…

A: The amount of heat required to raise the temperature of the sample is given by: q = mc∆Tq is the…

Q: A system does 551 kJ of work and loses 236 kJ of heat to the surroundings. What is the change in…

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Q: The thermite reaction can be written as 2Al(s)+Fe2O3(s)→2Fe(s)+Al2O3(s)                  ΔH∘=−850kJ…

A: Given: The value of  is -850 kJ. The amount of heat released in 314.5 kJ. Introduction: According to…

Q: A system does 516 kJ of work and loses 256 kJ of heat to the surroundings. What is the change in…

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Q: When 50.0 mL of 1.20 M of HCl(aq) is combined with 50.0 mL of 1.30 M of NaOH(aq) in a coffee-cup…

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Q: A calorimeter contains 23.0 mL of water at 14.5 °C . When 2.20 g of X (a substance with a molar mass…

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Q: What is the mass of a silver coin if 5.2 J is required to raise its temperature from 21.0 to 25.0…

A: Given :: Heat q=5.2 J Initial temperature T1=21.0 ℃ Final temperature T2= 25.0 ℃ Specific heat of…

Q: A calorimeter contains 34.0 mL of water at 14.0 °C . When 2.30 g of X (a substance with a molar mass…

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Q: A system does 566 kJ of work and loses 216 kJ of heat to the surroundings. What is the change in…

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Q: The standard enthalpy change for the following reaction is 1.11x10 kJ at 298 K. 2 BaO(s) 2 Ba(s) +…

A: By Hess's law of constant heat summation: Equation (ii) = -1/2 x equation (i) ∆H2° = -12×∆H1° ∆H2°…

Q: During the calculation process, how must the following reaction and its ΔH°rxn be manipulated?…

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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: A system does 556 kJ of work and loses 251 kJ of heat to the surroundings. What is the change in…

A: From the first law of thermodynamics we have, ∆E =Q + W Where, ∆E is change in internal energy…

Q: A 126 g metal bar requires 2.50 kJ to change its temperature from 25.5 oC to 100.0 oC. What is the…

A: The energy required by  a metal to increase its temperature is given by  Q = m Cp ΔT where m = mass…

Q: The oxidation of copper(I) oxide, Cu,O(s), to copper(II) oxide, CuO(s), is an exothermic process. 2…

A: Since you have posted multiple questions, we are entitled to answer the first only. The balanced…

Q: Calculate the heat (in kJ) for a 2.80 kg system changing temperature from 85.0 oC to 10.0 oC? The…

A: The heat is to be calculated

Q: 1. The metabolism of one mole of glycerol trioleate, C5 H93O6, a common fat, produces 3.022 x 10*kJ…

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Q: The combustion of 1.00 mol of glucose (C6H12O6) liberates 2820 kj of heat. If 1.4 g of glucose is…

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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: Lead has a molar heat capacity of 26.4 J/K•mol. What molar enthalpy change occurs when lead is…

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Q: If 800 J of heat is added to a system when it does 500 J of work, what is the change in internal…

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Q: (6) 2. Octane, a major component of gasoline, burns according to the reaction: 20,H ) 250,…

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Q: How much energy is required to change the temperature of 21.5 g Cu from 27.0 °C to 88.1 °C? The…

A: The weight of copper is 21.5 g. The given temperature values are 27.0 ˚C and 88.1 ˚C. The constant…

Q: A 50.0-g sample of a copper-zinc alloy is heated to 100.0oC. The hot metal is quickly added to 100.0…

A: Specific heat capacity is the amount of heat in Joules is required by the substance to raise its…

Q: When salt (NaCI) is dissolved in water, the molar enthalpy of solution (AHsol) is +3.9kJ/mol. If 40g…

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Q: 33.45 grams of solid ammonium chloride is dissolved in the calorimeter and the temperature goes from…

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Q: Consider the following reaction:   2 HCl(aq) + Ba(OH)2(aq)  ⟶⟶ BaCl2(aq) + 2 H2O(l)          ΔH=…

A: When the acid and base that is one equivalent to both of the components undergoes neutralization…

Q: When 1.81 g of zinc metal reacts with 100.00 g of 1.00 M HCl in a coffee-cup calorimeter, the…

A: Given: mass of zinc = 1.81 g mass of HCl = 100.00 g Initial temperature = 20.8 oC Final temperature…

Q: Given the thermochemical expression below:   CaO (s)  +  3C (s)  ⟶  CaC2 (s)  +  CO (g)       ΔHo…

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Q: Consider the following reaction: 2 Mg + O2  2 MgO,  Hrxn = -1,203 kJ.Calculate the amount of heat…

A: The enthalpy change or heat released/absorbed during a chemical reaction as represented by a…

Q: A calorimeter contains 35.0 mL of water at 13.0 °C. When 1.80 g of X (a substance with a molar mass…

A: Given,The volume of water = 35.0 mLSo, mass of the water will be = (35.0 mL x 1.0 g/mol) = 35.0 g =…

Q: When 50.0 mL of 1.24 M of HCI(aq) is combined with 50.0 mL of 1.32 M of NaOH(aq) in a coffee-cup…

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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: 5.4 The contents of the closed box in each of the following illustra- tions represent a system, and…

A: The first law of thermodynamics describes that energy can neither created nor destroyed, it can be…

Q: When a 7.00 g sample of KCl is dissolved in water in a calorimeter that has a total heat capacity of…

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Q: In an experiment, 5.30 g of lithium chloride is dissolved in 100 cm3 of water to give 105.3 g of…

A: To calculate the molar enthalpy of solution, heat absorbed by the water should be calculated.

Q: Hydrogen gas, H2 , reacts explosively with gaseous chlorine, Cl2 , to form hydrogen chloride,…

A: Given, Hydrogen gas H2 reacts explosively with gaseous chlorine Cl2. What is the enthalpy of the…

Q: A chemical system produces 170. kJ of heat and does 18 kJ of work. What is AE for the surroundings?…

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Q: Calcium carbonate can be decomposed upon applying heat with the following equation CaCO3(s)  →…

A: Calcium carbonate can be decomposed upon applying heat with the following equation: CaCO3(s)  →…

Q: a system produces 123.0 kJ of heat and does 45.0 kJ of work on the surroundings, what is the ∆E for…

A: First law of thermodynamics can be written as  dQ=dE-dWwheredQ=heatdE=internal energydW=work done…

Q: You discover a new substance and wish to determine its specific heat capacity. Your sample weighs…

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Q: When 50.0 mL of 1.27 M of HCl(aq) is combined with 50.0 mL of 1.32 M of NaOH(aq) in a coffee-cup…

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Q: When a reaction occurs in a calorimeter, the temperature of 60 g of a reaction mixture increased by…

A: Given that : Mass of mixture (m) = 60 g Change in temperature (∆T) = 5°C Specific heat capacity (s)…

Q: Iron can be extracted from the iron(III) oxide found in iron ores (such as haematite) via an…

A: Since you have posted multiple questions, we can solve only first question. To get the second…

Q: What is the change in enthalpy in kilojoules when 3.24 g of CH,OH is completely reacted according to…

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Q: What is the change in enthalpy in kilojoules when 3.24 g of CH,OH is completely reacted according to…

A: Conversion factors are the numerical values which are used to convert one physical quantity to…