If you are using a calorimeter to measure the ΔHsolution of LiCl, which value of cp should you use in the equation, q = mΔTcp? a) the specific heat of LiCl b) the specific heat of water c) the specific heat of the calorimeter

Q: Give the mathematical expression of enthalpy.

A: Enthalpy: it is the total amount of heat in a particular system. That is the amount energy absorbed…

Q: A scientist measures the standard enthalpy change for the following reaction to be 74.8 kJ: 2HBr(g)…

A: Enthalpy of formation is the enthalpy change during the formation of one mole of the compound from…

Q: 4 Fe(s) + 3 O2(g) → 2 Fe2O3(s), ΔH = -1652 kJ (c) How much heat is released when 1.21 g iron is…

A: Given -  Heat released in the given reaction = 1652 kJ Mass of iron = 1.21 g

Q: .If a system does 84.0 kJ of work on its surroundings and releases 105 kJ of heat against a constant…

A: Given : Work done on surrounding by system = 84.0 KJ  And heat released = 105 KJ Since heat is being…

Q: 4 Fe(s) + 3 O2(g) → 2 Fe2O3(s), ΔH = -1652 kJ (d) How much heat is released when 11.40 g Fe and 2.13…

A: In the given question we have to calculate the heat released during the reaction,  First of all, we…

Q: Write out the chemical reaction whose enthalpy is the heat of formation of gaseous methane, CH4.

A: Standard equation of formation is equation represents formation of one mole compound from its…

Q: Calculate the quantity of energy (kJ) transferred to the calorimeter. ΔT = 2.14 °C qwater = 5.37 kJ

A: Calorimetry is a powerful tool used to quantify heat transfer in various processes, providing…

Q: What is the heat of a reaction, in joules, with a total reaction mixture volume of 57.5 mL if the…

A: Density of the mixture = 1 g/ml Volume of the mixture = 57.5 ml Mass of the mixture = Density of the…

Q: You mix 125ml of 0.180 m csoh with 50.0 ml of 0.450 m hf in a coffee cup calorimeter and the…

A: Specific heat capacity is the amount of heat that is required to rise a temperature of 1 kg…

Q: A bomb calorimeter, or constant volume calorimeter, is a device often used to determine the heat of…

A: Calculate the number of moles of xanthone. nxanthone = WxanthoneMxanthonenxanthone = 0.517 g196…

Q: How do I find heat absorbed by a calorimeter alone, and also heat absorbed by the conents of the…

A: The amount of heat or energy released or gained during the process is measured by using calorimeter.

Q: Calorimeter Heat of the Calorimeter = Initial Temperature = Final Temperature =  Temperature…

A: The heat capacity of the calorimeter is the quantity of heat absorbed by the calorimeter for each…

Q: constant-pressure calorimetry experiment, 27.0 mL of 1.00 M HCIO, was mixed with 27.0 mL of 1.00 M…

A: The constant pressure calorimeter is used to measure the change in enthalpy,∆H for a chemical or a…

Q: If the reaction of 2.5 g of Ca transfers 487 J of heat to a solution in a calorimeter (i.e. qsoln =…

A: Given : Mass of Ca reacting = 2.5 g And amount of heat transferred to the solution = 487 J Atomic…

Q: The standard molar enthalpy of formation of NH3(g) is –45.9 kJ/mol. What is the enthalpy change if…

A: Given, The standard molar enthalpy of the formation of NH3(g) is given by= -45.9 kJ/mol The mass of…

Q: When a 3.00-g sample of liquid octane (Cg H18) burns in a bomb calorimeter, the temperature of the…

A: The amount of heat released in the combustion of 3 g liquid octane gets absorbed by the calorimeter.…

Q: A student performed the procedure described in the lab manual using 49.9 mL of 1.0 M HCI and 49.3 mL…

A: Molarity of HCl = 1.0 MVolume of HCl: 49.9 mLMolarity of NaOH = 1.0 MVolume of NaOH = 49.3 mLInitial…

Q: For the chemical reaction H₂ (g) + F2 (g) → 2 HF (g) AH° = -79.2 kJ/mol. What is the molar enthalpy…

A: In the given question, molar enthalpy of a reaction is given as :-  H2(g) + F2(g) -----> 2HF(g)…

Q: When a 6.00 g sample of KBr is dissolved in water in a calorimeter that has a total heat capacity of…

A: We have to find the molar heat of the solution of KBr

Q: In a calibration of a calorimeter, 50.3 g of water at 60.5 degrees celsius is added to 48.7 g of…

A: Given : mass of cold water = 48.7 g Mass of hot water = 50.3 g Initial temperature of hot water =…

Q: A piece of aluminum with a mass of 4.39 grams is heated to raise its temperature from 21.7°C to…

A: a) Since specific heat capacity of Al is 0.9 J/g.°C Since quantity of heat absorbed is given by  Q =…

Q: How many JJ of heat are needed to raise the temperature of 88.0 gg of octane from 12.0 ∘C∘C to 25.2…

A: Heat capacity is amount of heat required to increase the temperatures one gram of substance by one…

Q: During a certain chemical reaction 105 J of heat is absorbed by the system and 310 J of work is done…

A:

Q: Using the equations 2 H: (g) + O2 (g) → 2 H2O (1) AH° = -572 kJ/mol Ca (s) + ½ O2 (g) → CaO (s) AH°…

A: The first chemical reaction is, 2H2g+O2g→2H2Ol                 ∆H°=-572 kJ/mol......(1) The second…

Q: A 1.00 g sample of MgCl2 produced a 10.00 °C increased in a calorimeter charged with 40.0mL of…

A: Mass of MgCl2 = 1.00 g Increase in temperature, ΔT = 10.00 °C Specific heat of MgCl2, C = 0.750…

Q: Determine the enthalpy (in kJ/mol) for the reaction 3 SiCl₄ (s) + 4 Fe (s) → 4 FeCl₃ (s) + 3 Si (s)…

A: To solve this we have to do some  mathematical operations with the given  two equations to get the…

Q: What is enthalpy, and what is ΔH for a reaction, and what does it mean if ΔH is positive or…

A: Enthalpy can be defined as the total amount of heat of the system which can be represented by a…

Q: The complete combustion of propane, C 3H 8(g), is represented by the equation:  C 3H 8(g) + 5 O 2(g)…

A: when the heat is evolved in a reaction then that reaction is known as exothermic reaction.  The…

Q: For the chemical reaction H, (g) + F, (g) → 2 HF (g) AH° = -79.2 kJ/mol. What is the enthalpy (in…

A:

Q: A calorimeter is calibrated by mixing two aqueous solutions each with a volume equal to 44.4 mL. The…

A: Given data:Calculate the heat evolved in the reaction of HCl and NaOH and enthalpy of…

Q: Calculate the energy required to heat 202.0mg of cyclohexane from 18.4°C to 38.8°C . Assume the…

A: Specific Heat capacity is amount of heat required to increase the temperatures of one gram of…