Fermentation of glucose produces ethyl alcohol and carbon dioxide; C 6H 12O 6(l) → 2 C 2H 5OH(l) + 2 CO 2(g) The vapor pressure of water at this temperature is 13.63 mm Hg. Species ΔH°f, kJ/mol C6H12O6(l) -1260 C2H5OH(l) -277.7 CO2(g) -393.5 What is ΔH° rxn (in kilojoules) if 319.0 mL of CO 2 was collected over water at 16.00°C and 720.2 mm Hg?

Q: For the chemical reaction Ca (s) + ½ O₂ (g) → CaO (s) ∆H° = -635 kJ/mol. What is the molar enthalpy…

A: The balanced Chemical equation given in the question - Ca(s) + ½O₂(g) → CaO(s), ∆H° =-635 kJ/mol…

Q: When 75.71 grams of fictional compound X is added to water to make 367.7 grams of solution, the…

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Q: The standard enthalpy change for this reaction is -36.3 kJ/mol at 298 K. 1/2 H2(g) + 1/2…

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Q: At constant volume, the heat of combustion of a particular compound, compound A, is −3520.0…

A: “Since there are multiple questions and it is not mentioned that which one has to be solved so I am…

Q: Consider the dissolution of CaCl₂: CaCl₂(s) → Ca²⁺(aq) + 2Cl⁻(aq) ∆H = -81.5 kJ/mol A 15.0-g sample…

A: Given reaction is: CaCl₂(s) → Ca²⁺(aq) + 2Cl⁻(aq)      :∆H = -81.5 kJ/mol Mass of CaCl2 = 15.0 g…

Q: When 59.52 grams of fictional compound X is added to water to make 553.5 grams of solution, the…

A: given mass of solution = 553.5 g mass of X = 59.52 g molar mass of X = 69.14 g/mol initial…

Q: Calculate the enthalpy change expected when 50.0g of water vaporizes, if the molar enthalpy of…

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Q: heat in cal

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Q: Sodium chloride, the table salt (NaCl) is added in cooking to enhance the flavor of the food.  When…

A: specific heat capacity is defined as the amount of heat required to raise the temperature of a…

Q: The standard enthalpy change for the following reaction is 35.6 kJ at 298 K. L(s) + Cl2(g) – 2…

A:

Q: 3.15 mol of an unknown solid is placed into enough water to make 150.0 mL of solution. The…

A: Given: Moles of solid = 3.15 mol. Volume of solution = 150.0 mL  Density of solution = 1.20 g/mol.…

Q: The standard enthalpy change for the following reaction is 270 kJ at 298 K. 2 HNO3(g) N2(g) + H2(g)…

A: Heat of formation of HNO3 = -135KJ/mol

Q: Using the equations 2 H2 (g) + O2 (g) → 2 H2O (1) AH° = -572 kJ/mol Ca (s) + ½ O2 (g) → CaO (s) AH°…

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Q: what is the change in the enthalpy in kj/kg for the complete combustion of 39.0 g of fructose,…

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Q: The standard enthalpy change for the following reaction is -104 kJ at 298 K. 3 C(s,graphite) +4…

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Q: When 24.89 grams of fictional compound X is added to water to make 314.9 grams of solution, the…

A: Given: Mass of compound added = 24.89 g. Molar mass of compound = 123.72 g/mol. Initial temperature…

Q: A piece of metal weighing 71.35 g was heated to 96.6oC and then put into 42.95 g of water (initially…

A: The heat released or absorbed (q) when the temperature of any substance is raised is calculated as:…

Q: When 96.64 grams of fictional compound X is added to water to make 331.6 grams of solution, the…

A: Given the mass of fictional compound X = 96.64 g The mass of water m = 331.6 g The specific heat…

Q: 38.When 36.92 grams of fictional compound X is added to water to make 297.9 grams of solution, the…

A: First calculate the energy for solution using formula of q = m*c*∆T and then divide this calculated…

Q: What mass of aluminum metal would absorb 250.0 kJ when it melted at its melting point? The molar…

A: One gram of aluminium metal absorbs 396.6 Joule heat.

Q: The standard enthalpy change for the following reaction is 470 kJ at 298 K. 2 CH3CH,OH(g) 4…

A: We have to calculate the enthalpy change for given reaction.

Q: The standard enthalpy change for the following reaction is 52.3 kJ at 298 K. 2 C(s,graphite) + 2…

A: The enthalpy shift that happens in a system when a chemical reaction changes one mole of matter…

Q: At constant volume, the heat of combustion of a particular compound is –3639.0 kJ/mol. When 1.471 g…

A:

Q: When 51.96 grams of fictional compound X is added to water to make 348.0 grams of solution, the…

A: Mass of compound X is = 51.96 g Molar mass of compound X is = 92.68 g/mol Specific heat of solution…

Q: Consider the dissolution of CaCl2: CaCl2(s) -> Ca2+(aq) + 2Cl-(aq), delta H= -81.5 kJ An 11.4…

A: The heat of solution is given as :

Q: When 97.02 grams of fictional compound X is added to water to make 382.0 grams of solution, the…

A: Answer = The correct option is (b) = 31.66 kJ/mol Solution - According to the question - Given the…

Q: The standard enthalpy change for the following reaction is 925 kJ at 298 K. Mg(OH)2(s) → Mg(s) +…

A: We know that Enthalpy is a state function one that depends on only the Initial state of the system…

Q: constant volume, the heat of combustion of a particular compound, compound A, is −3520.0…

A:

Q: When 84.64 grams of fictional compound X is added to water to make 449.6 grams of solution, the…

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Q: the standard enthalpy of combustion of octane, -5,430kj/mol, applies to the following reaction…

A: C8H18 + 252O2   →8CO2 +  9H2O                 ∆H°=-5,430KJ/mola) 1 mole of combustion ocatne , takes…

Q: When 59.59 grams of fictional compound X is added to water to make 330.6 grams of solution, the…

A: Given that, the mass of the fictional compound added = 59.59 grams. And the mass of the water =…

Q: If 35.0 g H2O at 22.7 °C is combined with 65.0 g H2O at 87.5 °C, what is the final temperature of…

A: The specific heat is determined as the ratio of heat required to the product of mass and temperature…

Q: Calculate the enthalpy of methanol (CH 3OH (l) (MW=32.0 g/mol), if a 2.885 g sample of methanol is…

A: Heat capacity of bomb calorimeter C = 727.1J/0C Change in temperature ∆T = 11.380C mass of methanol…

Q: Energy Constants for H2O 334 J/g = Heat of Fusion (Hf) 2260 J/g = Heat of Vaporization (Hv) 2.11…

A: Answer:- This question is answer by using the simple concept of calorimetry which state that heat…

Q: What is the change in temperature (in oC) when a 37 g sample of graphite (specific heat = 0.720 J/(g…

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

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Q: The reaction of 1.00 mol of solid phosphorus with chlorine gas to form PCl3(g) releases 287.0kJ of…

A: According to the Hess's law, the total change in enthalpy during a course of a chemical reaction…

Q: heat in cal

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Q: The following information is given for benzene, C6H6, at 1atm: AHvap(80.1 °C) = 30.7 kJ/mol boiling…

A: Here, we have to find the ∆H for the process of condensing 47.4 g of gaseous benzene at its normal…

Q: 1. Instant hot packs work by crystallizing sodium acetate (NaCH3COO). The molar enthalpy of…

A: Given that: heat release for 1 mol NaOAc crystallization = 56.7 kJ 125 ml water = 125 g water

Q: Calculate the ΔS of vaporization (in J/mol∙K)  which boils at 728.7 oC. Its heat of vaporization,…

A: Given ΔS = ? ΔH°vap = 82.8 kJ/mol boiling temperature (Tb) = 728.7°C

Q: The heat capacity of silicon dioxide (SiO2, 60.1 g mol-1), is 0.732 J g¬ K-1. Calculate the energy…

A: The heat capacity of SiO2 is = 0.732 J g-1 K-1 The molar mass of SiO2 is =60.1 g.mol-1 The moles of…

Q: 10.0 mol CsH20, (glucose) is combusted to carbon dioxide and water at 25C according to the equation:…

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Q: NO3KNO3 is dissolved in 229 g of water at 23.00 °C.   KNO3(s)−→−−H2OK+(aq)+NO−3(aq)   The…

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Q: Two students perform an experiment to determine the molar enthalpy of sucrose (C HO, molar mass =…

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Q: (p) O 17) A 10.1 g sample of NaOH is dissolved in 250.0 g of water in a coffee-cup calorimeter. The…

A: The mass of NaOH is = 10.1 g The mass of water is = 250.0 g Specific heat of liquid water is = 4.18…

Q: You wish to know the enthalpy change for the formation of liquid PC13 from the elements. P4(s) + 6…

A: Enthalpy is the heat energy taken or released during the course of a chemical reaction. it is a…

Q: The chemical equation for photosynthesis is as follows: 6 CO2 + 6 H2O → CH1206 + 6 O2 Every year,…

A: Given-> 6CO2(g) + 6H2O (l) -->C6H12O6(s) + 6O2(g) Weight of CO2 = 2.85 ×10^4 kg

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.