Calculate the thermal energy in the burnt marshmallow based on the following information: 100mL of water are heated up over the flame of burning marshmallow q= m x C(sp) x deltaT Original marshmallow mass- 7.3g    Burnt marshmallow mass- 6.4g Original water temperature- 23 degrees C   Final water temperature- 27 degrees C

Q: se/3594/report/69138 #tab=REPORT RT eport Submission - Thermochemistry Part B data and calculations…

A: Part 2: Explanation:Step 1: Convert heat change from J to kJ.Given that 1 kJ = 1000 J, we divide the…

Q: Sign conventions for Heat (g) and Work (w) : The change in internal energy of a system can be…

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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: e new temperature of the w

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Q: A 12.40 gram sample is heated to an initial temperature of 50 oC. The sample is then placed in a…

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Q: A solution is made by mixing 285.0 mL285.0 mL of ethanol initially at 12.0 ∘C12.0 ∘C with 285.0…

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

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Q: A granite rock (Cgranite = 0.744 J g-1 k-1) was throughly heated in a campfire to 450°C then dropped…

A: We know that specific heat capacity of water, cwater = 4.184 J/g/K

Q: Using the table of standard formation enthalpies that you'll find under the ALEKS Data tab,…

A: Standard enthalpy of fomation of H2S(g) = -20.1 kJ/mol Standard enthalpy of fomation of O2(g) = 0…

Q: Measurements show that the energy of a mixture of gaseous reactants increases by 240. kJ during a…

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Q: B. Dissolution of Sodium Acetate Trihydrate a.547 1:250 Mass of water Mass of NaC2H3O2 3H20 Mass of…

A: The data given is,

Q: Using the table of standard formation enthalpies that you'll find under the ALEKS Data tab,…

A: Chemical reaction C2H2 (g) + 2H2 (g) ->   C2H6 (g) Using ALEKS data Standard enthalpy of…

Q: If the standard enthalpy change for the reaction below is 245. has the correct number of significant…

A: This question belongs to Thermodynamics.

Q: The heat capacity of an Object (F) is the amount of heat (Q) required to raise it’s temperature, per…

A: The properties of matter that do not depend on the size or quantity of matter in any way are…

Q: 8. A 50.0 g sample of water at 70.0 °C is mixed with 60.0 g of water at 20.0 °C. Find the final…

A: Please note- As per our company guidelines we are supposed to answer only one question. Kindly…

Q: Many portable gas heaters and grills use propane, C3 Hs (g). Using enthalpies of formation,…

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Q: Using the table of standard formation enthalpies that you'll find under the ALEKS Data tab,…

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Q: b) What is the standard enthalpy of reaction per mole of KOH when 50.00 cm³ of 1.0 moldm³ of Nitric…

A: Enthalpy of reaction: The Heat of Reaction (which is also known as the Enthalpy of Reaction)…

Q: Suppose 0.100 mol of a metal (M) is combusted in excess O2(g) in a bomb calorimeter. 4M(s) + 302…

A: Given: 4M + 3O2 -----> 2M2O

Q: Material: Heat Copper + Heating Duration: Reset Block Mass: 5.0 g 10.0 g 2 s 100 J has been…

A: Given that: Mass of copper block (m) = 5.0 g Heat (q) = 100 J Change in temperature (∆T) = 71.9°C -…

Q: Calculate ΔHrxn

A:

Q: How many moles of isooctane are burned under standard state conditions when ΔH =  -372 kJ?

A: Sol. Change in enthalpy, ΔH = heat released = -372 kJ Standard molar enthalpy of combustion of…

Q: When 2.708 g of AX (s) dissolves in 121.5 g of water in a coffee-cup calorimeter the temperature…

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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: Consider the following reactions: W(s) + C(graphite) ---> WC(s) What is the enthalpy of reaction (in…

A: Interpretation-  To determine the enthalpy of the reaction ( in KJ) which is given as   W(s)   +…

Q: a) Calculate the heat evolve when the ethanol was combusted b) Calculate the enthalpy change of…

A: A. Density of water = 1.00 gcm-3  Initial temperature = 20°C Final temperature = 55°C Change in…

Q: When 1.87 g of a salt dissolves in 108 mL of water (density = 1.00 g/mL) in a coffee-cup…

A: Given that :The mass of salt (ms)= 1.87 gThe volume of water = 108 mLThe density of water = 1.00…

Q: The standard enthalpy of formation of H2O20 is -187.8 kJ-mol-1 and of H2Om is - 285.8 kJ-mol-1.…

A: The reaction given is, => 2 H2O2 (l) → 2 H2O (l) + O2 (g) Given: ΔHof{H2O (l)} = -285.8 KJ/mol.…

Q: Calculate the reaction enthalpy of this reaction under standard conditions: 2C2H6(g) + 7O2(g)——>…

A: Given, 2C2H6 (g) + 7O2 (g) ——> 4CO2 (g)+ 6H2O (l) Standard  enthalpy of formation of all the…

Q: The equation for the combustion of CH4 (the main component of natural gas) is shown below. Part A…

A: Number of moles is given by: moles=mass of the substancemolar mass of the substance

Q: Please help me solve the following question, explain and pls pls make sure everything is correct…

A: Step 1:Enthalpy change is an extensive property, so, it is additive in nature and can be added or…

Q: A chemical reaction takes place inside a flask submerged in a water bath. The water bath contains…

A: Given : Mass of water = 4.70 Kg = 4700 g…