General Chemistry student performed the “Thermochemistry” lab and obtained the following results: D. ΔH for Solution of KCl(s) in water: Mass of KCl: 5.550 g Volume of water: 0.0450 L ΔT for reaction D: -15.0 °C Calculate the total calories absorbed from the surroundings. Calculate the number of moles of KCl dissolved. Calculate ΔH for the solution of KCl.

Q: DO NOW: Determine the AH and AS of the system: ΔΗ 2H₂(g) + O₂(g) → 2H₂O(g) Example 1: ΔS • How much…

A: Note: We are authorized to answer one question at a time, since you have not mentioned which…

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A: a system releasing 428 calories of heat its surroundings and has 1255 J of work done on the system

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Q: ΔHsolution of NaOH(s) Phase Change: Mass of NaOH: 2.330 g ΔT for reaction A : 10.0 °C Calculate the…

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Q: ΔHsolution of NaOH(s) Phase Change: Mass of NaOH: 2.330 g ΔT for reaction A : 10.0 °C Calculate the…

A: In the given question we have to calculate the total number of calories produced by the solution.The…

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Q: = -56.04 J/g. Based on this data, calculate 4. The freezing of benzene is exothermic with a AH, the…

A: Given: The moles of benzene = 1 mol. The mass of 1 mol of benzene = 78.11 g. The ∆HFreezing= -56.04…

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Q: Write an equation for the formation of each compound from itselements in their standard states, and…

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Q: 4. Using the tabulated values, calculate AS for the following reactions (Table on the next page): a.…

A: Answer:Here: ai and bi are the stoichiometric coefficients

Q: ler the following reaction: CO (g) + 2 H2 (g) - CH;OH (g) = -90.7 kl Describe the flow of heat in…

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Q: 1. A student conducts an investigation to determine the heat of neutralization when 60.0 mL of 0.500…

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Q: s reaction endothermic or exothermic? ts) oinnerdtoxca no tobne Additionally, rewrite the…

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Q: Solid carbon graphite reacts with oxygen gas to release of 393.7 kJ per mole of carbon dioxide gas…

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Q: For the reaction SbCl (g) SbCl (g) + Cl (g), 5 3 2  G° (SbCl ) = -334.34 kJ/mol f 5  G° (SbCl ) =…

A: We have find out equilibrium constant.

Q: grams

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Q: 12. A 5.00-g sample of aluminum pellets (CAI 0.89 J/(g °C)) and a 10.00-g sample of iron pellets…

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Q: A student dissolves 11.2 g of potassium chloride (KCl)in 300. g of water in a well-insulated open…

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Q: 56. A gas expands from 2.00L to 3.65 L, (i) what is the sign of the work term? (ii) does the…

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Q: After determining the ΔH of reactions, explain what does the numerical difference represent, in…

A: Enthalpy change of a reaction, ΔH can be either positive or negative numerically.

Q: The reaction: 2 Mg + O2 --> 2 MgO has Δ Hrxn = -600. kJ/mol. Determine q for the reaction of 10.0…

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Q: The value of ΔH° for the reaction below is -72 kJ. Therefore, ________ kJ of heat are released when…

A: ΔH° < 0 => heat is releasing in the reaction. Since when 2 mol of HBr is forming, -72 KJ =…

Q: A certain reaction has Ho = -66.40 kJ and So = 0.00 J/K.

A: To solve these problems we use some basics concept of thermodynamics.