50.0 cm3 of 1.00 mol dm-3 copper sulfate solution is added to the calorimeter and its temperature measured every 25 s. Excess zinc powder is added after 100 s and the temperature starts to rise until a maximum after which it falls in an approximately linear fashion. Calculate the molar enthalpy change from the data in the graph below.

Q: What is the change in enthalpy when 4.04 grams H₂ reacts with excess oxygen according to the…

A: Here we are required to find the change in enthalpy of reaction

Q: Given the following reactions A (g) + B (g) → 2 C (g) AH = +810.7 kJ 2 C (g) + B (g) → 2 D (g)…

A:

Q: In a calorimetry experiment 3.2 g of potassium hydroxide is dissolved in 400 mL water in a thermos…

A: The objective of the question is to calculateThe heat absorbed by the solutionThe heat absorbed by…

Q: A sample of solid biphenyl weighing 0.5260 g was ignited in a bomb calorimeter initially at 25 °C,…

A: “Since you have posted multiple questions, we will provide the solution only to the first question…

Q: A 33.0 g iron rod, initially at 22.2 °C, is submerged into an unknown mass of water at 63.9 °C, in…

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Q: 3. Calculate the change in molar enthalpy AH at constant pressure for CO₂ when it is heated from 15…

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Q: One mol of an ideal gas is heated at a constant external pressure of 200 kPa. Calculate the enthalpy…

A: Given:  Moles of gas = 1  Pressure = 200 kPa  Initial temperature (T1) = 100°C  Final temperature…

Q: A sample of solid biphenyl weighing 0.5260 g was ignited in a bomb calorimeter initially at 25 °C,…

A: A) Mass of Benzoic acid, C6H5COOH = 0.7750 g Temperature rise = ∆T = 1.940 K Heat of combustion of…

Q: How would I calculate work(w), heat(q), energy change(ΔU), enthalpy change(ΔH), and entropy (ΔS)…

A: The internal energy change (ΔU), enthalpy change (ΔH), work (W), and heat transferred (q) is…

Q: A 104.2 mL sample of 1.00 M NaOH is mixed with 52.1 ml of 1.00 MH2SO, in a large Styrofoam coffee…

A: Please find below the reaction taking place  2 NaOH (aq) + H2SO4 (aq) -----> Na2SO4 (aq) + 2 H2O…

Q: A styrofoam calorimeter contains 60.0 mL of 0.750 M H3C6H5O7 at 22.8oC. When 9.83 g NaHCO3 is added…

A: Change in enthalpy i.e. ∆Hreaction can be calculated using the formula: ∆Hreaction=mC∆T where, m is…

Q: 4. The heat capacity of solid lead oxide is given by the equation: Cp(T) = 44.35 + 1.47 × 10-3 × T…

A: This is can be calculated by Kirchhoff equation.

Q: Calculate the standard molar enthalpy of the global reaction of acetylene (C,H): 2C(graphite) +…

A: We have to calculate the molar enthalpy of global reaction of acetylene from given reactions…

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Q: interpret and understand the concept of heat capacity and enthalpy as it pertains to this data and…

A: The amount of heat that is required to raise the temperature of the 1-mole substance by 1oC is…

Q: 3. Suppose you have a bomb calorimeter and first calibrate it using a known quantity of electrical…

A: In bomb calorimeter, no heat is transferred between the system and the surroundings, that means the…

Q: Find the standard molar enthalpy for the reaction C(s) + ½ O2(2) → CO(g) Cs) + O2(2) → CO2«g) CO243)…

A:

Q: This was a lab I performed where we mix aqueous 25ml HCl and 25ml NaOH and use a program called…

A: Given data,Mass of solution=47.147gInitial temperature=23.02oCFinal temperature=29.59oCMolarity of…

Q: The enthalpy of a system is given by the equation H=U+PV where U is the internal energy, P=pressure,…

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Q: a) What is the standard enthalpy of reaction per mole of either HCI or NaOH when 100.00 cm³ of 0.1…

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Q: The standard enthalpy change of combustion [to CO,(g) and H,O(€)] at 25°C of the organic liquid…

A: Given information: Enthalpy change for combustion of liquid cyclohexane = -3731.7 kJ/mol

Q: The standard enthalpy of reaction, AH rxn for C₂H2(g) + 2H2(g) → C₂H6(g) is-310.2 kJ mol-1.…

A:

Q: (b) What is Hess law? Several reactions and their standard reaction enthalpies at 298.15 K are given…

A: Hess's law : The enthalpy change for a reaction will be same whether it occurs in a single step or,…

Q: Calculate AA and AG for the reaction C6H14 (1) + O2(g) →→ 6CO₂(g) + 7H₂O(1) at 298 K from the…

A: Given data :

Q: A basketball is pumped up isothermally using air that is originally at 20°C and 1.05 × 105…

A: The final pressure can be determined as follows: Pinitial × Vinitial  =  Pfinal × Vfinal1.05 × 105…

Q: 3.79 g of a gas (66.3 g mol-1) was dissolved in liquid water in a calorimeter with a calorimeter…

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Q: Find the standard molar enthalpy for the reaction C + 1/2 O2 -> CO given that C + O2 -> CO2 Delta H…

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Q: To determine the calorimeter constant of a coffee-cup calorimeter, 28 g of cold water was placed in…

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Q: Three moles of nitrogen at 30°C are contained in a container of a certain volume. If we ignore the…

A: Given: moles of nitrogen gas = 3 mol Initial temperature (T1) = 30° C Final temperature (T2) = 250°…

Q: Find A,U for the combustion of methanol (CH3 OH) to carbon dioxide and liquid water from the…

A:

Q: The compound cyclohexanol, C6H₁2O, is a good fuel. It is a liquid at ordinary temperatures. When the…

A: Answer:here, ai are stoichiometric coefficients of products and reactants respectively.

Q: Solution calorimetry was used to study the acid-catalyzed addition of water to 1- butene:…

A:

Q: Three moles of an ideal gas at 100 kPa pressure and 20°C are heated at constant pressure until the…

A: In this question we are asked to find the change in the enthalpy of the gas for a constant pressure…

Q: The energy required for the hypothetical reaction 2A+B⇌2C+2D2A+B⇌2C+2D is 325 kJkJ as written. How…

A: The objective of the question is to find out how much heat is absorbed when 2.80 mol of A reacts in…

Q: Use the appropriate data from the table to calculate the change in enthalpy, for this reaction: Mg()…

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Q: 4.38 g of a gas (28.1 g mol–1) was dissolved in liquid water in a calorimeter with a calorimeter…

A: The question is based on the concept of chemical thermodynamics. We have  to calculate enthalpy of…

Q: A student poured 100 ml of water (density = 1.00 g / mL) into a coffee calorimeter, noted that the…

A: Volume of water = 100 mL Density of water = 1.0 g/mL Mass of KOH = 5.33 g Initial temperature = Ti =…

Q: (a) An ideal gas of mass 4.5 g and molar mass of 17 g.mole-1 occupies 12.7 L at 310 K. Answer the…

A: Here 4.5 gram of gas , molar mass 17 g/mol occupies 12.7 L at 310K .We have to determine work done…

Q: This was a lab I performed where we mix aqueous 25ml HCl and 25ml NaOH and use a program called…

A: Neutralization reaction of HCl and NaOH that give H2O and NaCl.

Q: A bomb calorimeter is calibrated by using a 12 V electrical supply. A current of 8.0 A is passed…

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Q: Identify the effect of the condition on the indicated parameter. Write increase, decrease, or no…

A: Given that in the calculation part, we have used the right concentration value of NaOH, whereas the…

Q: Determine, at 298 K, Ar1H°, the standard enthalpy of the reaction (1) between dinitrogen tetraoxide…

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Q: To determine the calorimeter constant of a coffee-cup calorimeter, 28 g of cold water was placed in…

A: Given that : The mass of cold water = 28 gThe initial temperature of cold water = 19.5 ºCThe mass of…

Q: The standard enthalpy of combustion, AH,of graphite is -393.51 kJ mol 1. Calculate the change in…

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Q: Johnson and Steele determined the standard enthalpy of combustion of UO2(s) in gaseous fluorine. The…

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Q: A 1.000-g gaseous mixture of CH4 and C2H6 at 1 bar and 298 K is burned in a bomb calorimeter. The…

A: In a bomb calorimeter, the volume of the bomb is kept constant. Therefore the amount of heat…