425.66J/2.0360 g. Convert to kj/mol. Show the work. Molar mass = 39.99 NaOH B) 425.32J/ 1.9532g. Convert to kj/mol. Molar mass = 80.043 Na4NO3

Q: 4. A 41.3g piece of metal heated to 93.1°C and dropped into a calorimeter containing 58.3g of water…

A: The given information is: (1) For metal: Mass = 41.3 g Initial temperature (T1)metal = 93.1°C Final…

Q: 5. Using data below and other data in your text if necessary, calculate the enthalpy change for the…

A:

Q: Equation A: 1/2 N2 (g) = 1/2 O2 (g) = NO (g) H=90.3 Equation B: 2 NOCl (g) = N2 (g) + O2 (g) + Cl2…

A: Since, The standard enthalpy of the formation is defined as change of enthalpy of 1 mol of the…

Q: The work done to compress a gas is 93 J. As a result, 38 J of heat is given off to the surroundings.…

A: Work done to compress = Work done on the systemand work done on the system is taken as a positive…

Q: The specific heat capacity of scandium is 0.567 J/g °C. How many joules are given off when 81.53g of…

A: Given  Mass of scandium = 81.53 gram  Initial Temperature ( T1 )   = 574.2 ℃ Final Temperature ( T2…

Q: I need the third sub part

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Q: 2. Cold packs take advantage of the fact that dissolving NH4NO3 in water is an endothermic process.…

A: Mass of solid, NH4NO3(s) taken = 5.44 g  Initial temperature, Ti = 18.6 oC  Mass of water taken =…

Q: Can the heat capacity of water be assumed when calculating the heat capacity of an unknown metal or…

A: The amount of heat absorbed (or released) by a fixed amount of a substance to change its temperature…

Q: 2 X+ Y2Z3 →2 Y+ X2Z3, AH = -325 kJ/mol Given the equation above how many kilojoules of heat are…

A: Given that: 2X + Y2Z3    ----->  2Y + X2Z3     ∆H = -325 kJ/mol

Q: How much energy in kilojoules is required to convert 511 mL of water at its boiling point from…

A: Boiling point of water is 100°C. Boiling point is defined as temperature at which liquid convert…

Q: 4NH3(g) + O2(g) → 2N2(g) + 6H2O(g)          ΔrH = -1267 kJmol-1  2NO(g) + O­2(g) → 2NO2(g)     ΔrH…

A: For a chemical reaction to be spontaneous, Gibbs free energy, ∆rG should be negative. ∆rG is…

Q: An important flavor component of vanilla extract is vanillin (C8H8O3, molar mass = 152.15 g/mol).…

A: Using conservation of heat energy principle, mass of vanillin combusted can be calculated.

Q: Consider the following balanced reaction: 2 A2 + B → C + 2 D What is the enthalpy of reaction if…

A:

Q: If 0.312 g of fuel increases the temperature of a calorimeter by 18 °C, and the calorimeter is…

A: we have to calculate the heat of combustion of the fuel per gram

Q: 8. The caloric content of some pasta (listed on the side of the box of pasta!) is 4.000 kcal per…

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

Q: Given: q = mass X specific heat X (Tfinal - Tinitial) specific heat of water is 4.184 J/g oC How…

A:

Q: 8. The reaction below was carried out in a calorimeter initially at 22.0 °C. After 0.0180 g of iron…

A:

Q: When 1.23g C6H6(l) are burned, 51.5KJ of heat are released.  Calculate the enthalpy for this…

A: Heat of formation of the compound can be calculated from the reaction and enthalpy of the reaction .…

Q: 3. When a student mixes 50 mL of 1.0 M HCI and 50 mL of 1.0M NaOH in a coffee- cup calorimeter, the…

A: given - 50 ml of 0.1 HCl  50 ml. of 0.1 NaOH density = 1 g/ml specific heat = s = 4.18 J/g K initial…

Q: How much work is done at 25 °C during the combustion of 2.03 g of ethanol, C2H5OH?

A:

Q: A 109.9 g sample of beryllium experiences a temperature change of -71.48 °C while releasing 1. 242…

A: Note: As per the guidelines solution of first questions has been made. For the expert solution of…

Q: Consider the following reaction: 2 H, + O,-> 2 H,O A. H=- 483.6 kJ/mol rxn a Is this reaction…

A: Given that : enthalpy of reaction ∆H = 483.6 kJ/mol We need to check if reaction is exothermic or…

Q: Acetylene, C2H2, is used in welding torches. It releases a lot of energy when burned in oxygen. The…

A: It involves calorimetry experiment.   whatever heat produced by acetylene combustion  will get…

Q: 23.  If a reaction produces 1.506 kJ of heat, which is trapped in 30.0 g of water initially at 26.5…

A: Calorimeters play a major role in estimating reaction's heat with the known specific heat of…

Q: Consider these reactions: Reaction 1: H2(g)+Cl2(g)⟶2HCl(g)ΔH=−184.6 kJ  Reaction 2:…

A:

Q: 2. Cold packs take advantage of the fact that dissolving NH4NO3 in water is an endothermic process.…

A: Answer: Since, dissolution of NH4NO3 is an endothermic process, therefore heat will be absorbed…

Q: What is the energy of system A? What is the energy of system B? In how many ways can the energy of…

A: we have given the two diagrams showing the energies (boxes) of each of four A particles and four B…

Q: If a 50.0g sample of Cu is heated to 180.00C and is placed in 100.0 ml of water in a calorimeter at…

A: Given :  Mass of Cu sample = 50.00 gm  Initial temperature of Cu = 180 °C  Volume of water = 100 ml…

Q: Consider these reactions: Reaction 1: H2(g)+Cl2(g)⟶2HCl(g)ΔH=−184.6 kJ  Reaction 2:…

A:

Q: The work done to compress a gas is 70 J.  As a result, 25 J of heat is given off to the…

A: Work done to compress = Work done on the system And work done on the system is taken with a positive…

Q: N2(g)+2O2(g)⟶2NO2(g)ΔH=+66.4 kJ    Use Reaction 3.   How much energy (in kJ) is absorbed when…

A: Recall the reaction, N2 + 2O2 ------> 2NO2  ∆H = +66.4 KJ  Volume of NO2=159 L  Energy absorbed =…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 567.0 mg sample…

A: amount of heat needed q = m x S x ∆T  where  q = 11.6 J  m = mass of sample = 567 mg x 10-3 g/1mg =…

Q: An important flavor component of vanilla extract is vanillin (C8H8O3, molar mass = 152.15 g/mol).…

A: Given data is Molar mass of  152.15 g/mol  heat capacity of bomb calorimeter = 14.18 kJ/°C Increase…

Q: 4. In an experiment, 1.010 g of sugar (molar mass = 3423 gmol) gave off 16.7 kJ of hest in a…

A: Heat of combustion : It is defined as the amount of energy released when one mole of a substance is…

Q: 150.0 mL of dilute hydrochloric acid is placed in a coffee cup calorimeter. The initial temperature…

A: In the given question we have to calculate the final temperature of the solution, First of all, we…

Q: Explain, with the help of a suitable graph, why it takes more energy to heat a constant volume of…

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Q: Reaction 1: H2(g)+Cl2(g)⟶2HCl(g)ΔH=−184.6 kJ  Reaction 2: 2OF2(g)⟶O2(g)+2 F2(g)ΔH=−49.4 kJ…

A: Given , Reaction : 2OF2(g) →O2(g) +2F2(g)    ∆H=-49.4 kJ