How many grams of ethanol, C,H,OH, can be boiled with 473.1 kJ of heat energy? The molar heat of vaporization of ethanol is 38.6 kJ/mol. mass of ethanol:

Q: Isopropyl alcohol is used in rubbing alcohol mixtures. alcohol on the skin caused by evaporation.…

A: Given : Mass of alcohol = 7.71 g And heat of vaporisation of alcohol = 42.1 KJ/mol. The molecular…

Q: Siniog gnilind fesrigid bricose srit asri gniwollot sits to sno rainw.2 22. The heat of vaporization…

A: According to bartleby guidelines answer for the first question please repost another one to solution

Q: How much energy is absorbed or released when 23 g of carbon dioxide (Hfus =8.647 kJ/mol, Hvap =…

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Q: What is the expected value for the heat of sublimation of acetic acid, in kJ/mol, if its heat of…

A: As we know that – According to Hess's law of constant heat summation, the heat absorbed or evolved…

Q: enthalpy of vaporization for water is 44.0kJ/mol and the vapor pressure of water at 56oC is…

A: The Clausius – Clapeyron equation is shown below: Where; P1 is vapor pressure at temperature T1 P2…

Q: What amount of ethylene glycol (molar enthalpy of vaporization=58.8 kJ/mol) would vaporize while…

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Q: The specific heat of ice is 2.100 kJ/kg °C, the heat of fusion for ice at 0°C is 333.7 kJ/kg, the…

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Q: How many grams of ethanol, C,H,OH, can be boiled with 192.5 kJ of heat energy? The molar heat of…

A: Heat (Q) = 192.5 KJ Molar heat of vaporization (Hvap) = 38.6 KJ/mol Mass of ethanol (m) = ?

Q: How much energy in kJ would it take to heat up 25.23 g of water at 35 degrees C until it completely…

A: By help of specific heat of water, we can determine the energy -   Q = m C ∆T    where - Q = Heat…

Q: Based on the thermodynamic properties provided for water, determine the energy change when the…

A: Mass of water = 0.350 kg = 350 g Molar mass of water = 18 g/mol Moles of water = 350 g / 18 g/mol =…

Q: The specific heat of ice is 2.10 kJ/kg∙°C, the heat of fusion for ice at 0°C is 333.7 kJ/kg, the…

A: Given : Specific heat of ice = 2.10 KJ /Kg°c Heat of fusion for ice at 0°C  = 333.7 kJ/kg specific…

Q: Given the thermodynamic information below for ethylene glycol (molar mass = 62.068 g/mol): Normal…

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Q: What will the final temperature be if you add 400 KJ of heat to 1.00 L of liquid water at 20°C? The…

A: The heat supplied to water is used for  (i) raising the temperature to 100oC (the boiling point)…

Q: How much energy in kJ would it take to heat up 34.823 g of water at 47.8 degrees C until it…

A: Mass of water = 34.823 gm  Moles of water = 34.823/18 = 1.94 moles  Initial temperature = 47.8°C…

Q: What is the enthalpy change during the process in which 100 g of liquid water at 50.0°C is cooled to…

A: Cooling of water from 50°C to 0°C    Given:  m = 100g  ∆t = 0°C - 50°C = -50°C  cH2O(l) = 4.184…

Q: How many grams of ethanol, C₂H₂OH, can be boiled with 324.1 kJ of heat energy? The molar heat of…

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Q: calculate the quantity of energy in kj required to change 73.92 grams of liquid water at 38.8…

A: The liquid water is heated to raise the temperature from 38.8 to 100 degree Celsius. Then conversion…

Q: How much heat in kilojoules is required to (a) melt and (b) boil 1.50 mol ofisopropanol (rubbing…

A: First convert moles to mass in grams by multiplying with molar mass of isopropyl alcohol 1.5 mol x…

Q: How much energy is required to heat 1.50 moles of dichloromethane (CH3Cl2) from 30 °C to 60 °C? The…

A: The question is based on the concept of Hess law. It states that net enthalpy change for the…

Q: ow much heat is required to convert 32.48 g of ice at -7.05 °C into liquid water at 19.36 °C?…

A: Heat involved in a process on increasing temperature = mass of the substance×specific heat…

Q: The vapor pressure of ethanol is 400.0 mm Hg at 63.5oC (336.65K).  Its molar heat of vaporization is…

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Q: Calculate the heat energy released when 20.6 g of liquid mercury at 25.00 °C is converted to solid…

A: Given : Mass of mercury = 20.6 g Initial temperature of mercury = 25.00 oC = 273.15 + 25.00 = 298.15…

Q: For water, specific heat values for the solid and liquid phase are 2.00 J/gC and 4.18 J/gC…

A: Introduction: Phase diagram is shows the relationship of physical states of a substance under…

Q: How much heat is released ( in J) when 54.0 g of water at 10.0 °C is cooled to form ice at - 10.0…

A: Given the mass of water, m = 54.0 g  The initial state is water at 10.0 oC.  The final state is ice…

Q: A substance has a molar mass of 82.95 g/mol. A 33.5g sample of this substance absorbs 5.114 kJ when…

A: Molar heat of fusion :- The amount of heat absorbed when one mole of a substance changes from solid…

Q: Calculate the enthalpy of vaporization (AHvap) in kJ/mol for this liquid. vap kJ/mol

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Q: How much heat energy is required to boil 18.4 g of ammonia, NH3? The molar heat of vaporization of…

A: mass of 1 mol of ammonia = mass of 1 mol of N + mass of 3 mol of H atommass of 1 mol of ammonia =…

Q: 5. Calculate the amount of heat released when 100.0 g of water at 50.0 °C is converted to ice at…

A: Given data  Specific Heat (C) for ice = 2.03 J/g-°C Heat of Fusion for ice, ∆Hfusion = 6.01 KJ/mol…

Q: The vapor pressure of substance X is 100. mm Hg at 1070.°C. The vapor pressure of substance X…

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Q: Niobium is a transition metal used for making airplane propellers stronger as well as making…

A: Given Heat of fusion (ΔHfus) = 26.8 kJ mol-1 Mass of niobium metal = 25.4 g To Calculate: Heat…

Q: Isopropyl alcohol, also known as rubbing alcohol, can be used for a variety of cleaning and…

A: Note : the change in temperature on temperature scale either in kelvin or in degree celsius is same…

Q: 2H2 +N2--> 2NH3 With around 70% of ammonia produced industrially being used to make fertilizers. The…

A: Answer:-This question is answered by using the simple concept of calculation of heat energy required…

Q: 20. How much energy in kilojoules is released when 5.90 g of water at 30.5 °C is cooled to -18.5 -C?…

A: Given,mass of water = 5.90 ginitial temperature = 30.5 oCFinal temperature = -18.5 oCThe heat of…

Q: What is the enthalpy change for converting 10.0 g of ice at -15.0 °C to water at 55.0 °C in kJ. The…

A: Mass of ice = 10 g Initial temperature = - 15°C Final temperature = 50°C Specific heat of ice = 2.09…

Q: 7. How many calories of energy are released to the surroundings when 275g of mercury freezes? The…

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Q: How much heat is required to convert 47.0 g of ethanol at -142 °C to the vapor phase at 78 °C?

A: Here's a formula you can follow The heat of combustion of 1 gram of ethanol equals -29,782 J, or…

Q: What amount of thermal energy (in kJ) is required to convert 38.2 g of ethanol at -148 °C completely…

A: Given,  Ethanol at standard condition is in liquid 38.2 g of liquid ethanol at -148°C is converted…

Q: Sulfur dioxide has a vapor pressure of 462.7 mm Hg at -21.0 C and a vapor pressure of 140.5 mm Hg at…

A: Here we have to determine enthalpy of vaporisation of SO2 from the given data. Vapor pressure of SO2…

Q: 98. Draw a Lewis structure for each molecule and determine its molecular geometry. What kind of…

A: a)BCl3 is a simple covalent molecule it has a central boron atom which shares its 3 valance…

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.