2. Pentane C5H12 boils at 36°C at 1 atmosphere pressure. What is the molar heat of vaporization inusi kJ/mol if the vapor pressure of pentane at 25°C is 505 torr? o (3-Ai qeta

Q: A cubic piece of platinum metal (specific heat capacity = 0.1256 J/ °C g) at 200.0 °C is dropped…

A: Given:Specific heat capacity of platinum     = 0.1256 J/ oC.gInitial temperature of platinum…

Q: 3) C₂H₂(g) + 2 H₂(g) → C₂H6(g) (bon coinlatino Information about the substances involved in the…

A: Heat of formation is defined the enthalpy change when 1 mol of a compound is formed from its…

Q: Benzene (C6H6) undergoes combustion according to: 2C6H6(l)+15O2(g)→12CO2(g)+6H2O(l)ΔHo=−6535kJ All…

A: The combustion of the species butane is treated in the sight of the oxygen in order to produce the…

Q: To what fraction of its original volume, Vfinal/Vinitial, must a 0.50-mole sample of ideal gas be…

A: According to the question we have, The number of moles of a sample of an ideal gas is given by = n =…

Q: What quantity of heat, in kJ, is required to convert 50.0 g of ethanol (C₂H5OH) at 23.0 °C to a…

A:

Q: For a particular isomer of C,H13, the combustion reaction produces 5093.7 kJ of heat per mole of…

A:

Q: Everything needed is included. Using information available on the data page, calculate the total…

A: Firstly, we will convert the amount of…

Q: d) Calculate the heat gained by the water (qwater) in the calorimeter (in J) using the equation,…

A: Specific heat capacity is defined as the amount of heat required to raise the temperature of 1…

Q: It takes 572 kJkJ of energy to decompose 2.00 molmol of liquid water. How much energy does it take…

A: The objective of the question is to find out how much energy is required to decompose 31.6 mol of…

Q: Acetaldehyde, CH; CHO, is a colorless, flammable liquid used in the manufacture of acetic acid,…

A:

Q: a) What is the molar heat capacity of liquid water?   J/mol oC (b) What is the heat capacity of…

A: Heat capacity is the heat absorbed by fixed amount of respective substance.

Q: What is the heat capacity of a bomb calorimeter if the combustion of 2.888 mmol of salicylic acid…

A: To solve this problem we have to calculate the heat capacity of bomb calorimeter .

Q: Use the Standard Enthalpies of Formation given to solve for the AHf for C2H6. 2 C2H6 (g) + 7 O2(g)…

A: 2C2H6(g) +7O2(g) --> 4CO2(g) + 6H2O(g)

Q: Ethyl chloride, C2H5CI, can be used as a local anesthetic. It works by cooling tissue as it…

A: Heat of vapourisation of ethyl chloride is 26.4 kJ/mol, which means that to vapourise 1 mol of ethyl…

Q: Ammonia will burn in the presence of a platinum catalyst to produce nitric oxide, NO. 4NH3(g) +…

A: We are given three reactions:1. N2(g) + O2(g) -> 2NO(g); ∆H = 180.6 kJ2. N2(g) + 3H2(g) ->…

Q: Constants I Periodic Table Part A Calculate the enthalpy change, AH, for the process in which 41.2 g…

A: In the given question we have to calculate the enthalpy, on conversion of water from liquid to…

Q: Ammonia will burn in the presence of a platinum catalyst to produce nitric oxide, NO. 4NH3 (g) +…

A: Manipulate the reactions given below so that they closely resemble the reaction given above, Since…

Q: A 4.348 g sample of NaOH(s) is dissolved in 100 g of water in a calorimeter making 104.348 g of…

A: Given data as Mass of NaOH=4.348 g Mass of solution (m)=100g ∆T=(Tf-Ti)     =(47.4-23.6)      =23.8…

Q: When 320 mg of naphthalene, C10H8(s), was burned in a bomb calorimeter (write the reaction and…

A: In bomb calorimeter, we use the following  formula, q = -C.∆T=> -∆U = C.∆T  C=  heat capacity of…

Q: For the reaction N₂(g) +2O₂(g)-2 NO₂(g) AG 103.2 kJ and AS-121.6 J/K at 303 K and 1 atm. This…

A:

Q: A sample of biphenyl (C12H10) weighing 0.791 g was ignited in a bomb calorimeter. The initial temp…

A: The given reaction is . Mass of biphenyl = 0.791 gInitial temperature = Change in temperature = 2.13…

Q: (a) What is the molar heat capacity of liquid water?  J/mol oC (b) What is the heat capacity of…

A:

Q: Determine the heat of evaporation of carbon disulfide, CS2() ----- CS2(9g) given the enthalpies of…

A: Heat of evaporation is defined as the enthalpy change when one mole of liquid is converted to gases.

Q: ydrogen cyanide is a highly poisonous, volatile liquid. It can be prepared by the reaction CH4 (9)…

A:

Q: 2 Na(s) + 2H20(1) 2 N2OH(aq) + H2 (g) AH = -368 kJ Assuming no heat loss to the surroundings, will…

A: Introduction :  Enthalpy of fusion can be defined as the change in enthalpy of a substance when a…

Q: Prelaboratory Assignment: Investigation of Hess's Law Through Calorimetry 1. a) Calculate the amount…

A:

Q: The study of a crystalline solid, such as sodium chloride for example, involves the lattice enthalpy…

A: To solve this problem we will use the given data for the formation of NaCl .

Q: Hess's Law Calculate the formation of heat for the combustion of liquid acetone is the target…

A: In this question, we want to determine the combustion of acetone. How we can determine, you can see…

Q: Benzene (C6H6) undergoes combustion according to: 2C6H6(l)+15O2(g)→12CO2(g)+6H2O(l)ΔHo=−6535kJ All…

A:

Q: Using the equations 2 Sr(s) + O₂(g) → 2 SrO (s) AH° = -1184 kJ/mol CO₂ (g) → C (s) + O₂ (g) AH = 394…

A: Since,According to Hess's law change of enthalpy in a chemical reaction is same regardless of…

Q: What quantity of heat (in kJ) is absorbed in the process of making 0.771 mol of CF from the…

A: moles of CF4 =0.771 mol ∆H = 141.3 kJ /mol

Q: What is the final temperature when 100.0 g of Al (s = 0.900 J g–1 °C–1) at 0.0°C is placed in…

A:

Q: Question 14 of 34 Submit What quantity of heat, in kJ, is required to convert 50.0 g of ethanol…

A:

Q: The hydrocarbon propane has the structure CH3-CH2-CH3 Use the average bond enthalpies from the table…

A: The ΔH0 of any reaction can be given as  ΔH0 = sum of bond enthalpies of each bond in reactants -…

Q: Calculate AH° for the process ½ N2(g) + ½ O2(g)→ NO(g) from the following information AH° = -192.3…

A:

Q: What quantity of heat energy is necessary to transform 36.00 grams of H2O (s) at -20°C to H2O (ℓ) at…

A: Given: The mass of H2O= 36 g. The initial temperature, (Ti)= -200C. The final temperature,…

States of Matter

The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates). 

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.