The molar heat of vaporization of water at 25 °C is +43.9 kJ/mol. How many kilojoules of heat would be required to vaporize 6.28 g of water?

Q: Acetic acid's sublimation heat is anticipated to be between 10.8 and 24.3 kJ/mol, based on its heat…

A: Given,  Acetic acid's sublimation heat is anticipated to be between 10.8 and 24.3 kJ/mol

Q: (a) If 83.0 g of ice at 0.0oC is placed in 235mL of water at 28.0oC, find the final temperature of…

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Q: Given that a 10.0 g sample of ice at 0.0 °C melts and then the resultant water proceeds to warm to…

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Q: 18) Ethyl chloride, C2H5C1, is used as a local anesthetic. It works by cooling tissue as it…

A: It is based on the concept of thermochemistry. Here we are required to find the heat that could be…

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: 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: The enthalpy of vaporization of Substance X is 18.0- and its normal boiling point is -93. °C.…

A: Step 1: Convert the initial and final temperatures from °C to Kelvin.Step 2: The relation between…

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: The vapor pressure of water is 22.6 atm at 101.7 K, and the vapor pressure of water is 68 atm at…

A: Given data is as follows: The vapor pressure P1 of water at temperature 101.7 K = 22.6 atm The vapor…

Q: Explain why each of these properties is important to sustaining life. Please use your own words and…

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Q: Use the thermodynamic data in the table below to calculate how much heat in kJ is required to change…

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

A: When heat is given to water, the temperature of water will increase.this increase in temperature is…

Q: The specific heat of mercury is 0.140 J/g°C. Calculate the heat necessary to raise the temperature…

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Q: How much energy is needed to change the temperature of 39 g of water from 10.0 °C to 95.0 °C?

A: Since water remains in liquid form from 10°C to 95°C . Heat required, Q = mcp(l) ∆T ,where m is the…

Q: The molar heat of vaporization of water at 25 °C is +43.9 kJ/mol. How many kilojoules of heat would…

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Q: Calculate the number of joules of heat that is required to completely boil 500 mL of water at 100 C.…

A: The amount of neat energy required by liquid Substance to changed into Gaseous substance. It is…

Q: How much heat is required to change  256.0 g  of water at  58.1 ° C  to steam at  100.0 ° C?

A: Given that: Mass of water, mwater = 256.0 g Initial temperature = 58.1⁰C Final temperature = 100.0⁰C…

Q: the vapor pressure of water at 25 C is 3.13 x 10^-2 atm, and the heat of vaporization of water is 25…

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Q: Given that the heat of vaporization of water is 2256.4 kJ/kg, how much energy (kJ) does it take to…

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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: The heat of vaporization for CH4 is 152 cal/g. How much heat is needed (in calories) to vaporize 0.4…

A: The heat of vaporization for CH4 is = 152 cal/g The amount of heat is needed (in calories) to…

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Q: The atmospheric pressure at the summit of Mount Everest is 0.335 atm.  At what temperature does…

A: Given,The atmospheric pressure at the summit of Mount Everest = 0.335 atmThe ∆Hvap for water =…

Q: Suppose that 0.90 g of water condenses on a 75.0 g block of iron that is initially at 21 ∘CIf the…

A: Answer :

Q: The molar heat of vaporization of water at 25 °C is +43.9 kJ/mol. How many kilojoules of heat would…

A: Molar heat of vaporization is defined as the heat necessary to vaporize one mol of liquid under…

Q: The heat of vaporization of water is 40.65 kJ/mol. How much heat is required to vaporize 330 g of…

A: We know the amount of heat or energy required to vaporize water into the gas at its boiling point is…

Q: How much water at its boiling point can be vaporized by adding 1.50kJ of heat?

A: Given that, q =  1.5 kJ heat is added to water at boiling point 1000C. Heat of vaporization of water…

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: 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: ounds that are less harmful to the environment. The heat of vaporization of one such used as…

A: Since you have posted a question with multiple questions , we will provide the solution only to the…

Q: 2.The heat of sublimation for carbon dioxide is 32.3 kJ/mol. Calculate the mass of solid dry ice…

A: We will calculate mass of CO2

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Q: a. Calculate the heat required to melt 7.64 g of benzerie at jts normal melting point. Heat of…

A: Given: Mass of benzene = 7.64 g. Heat of fusion of benzene = 9.92 KJ/mol. And heat of vaporization…

Q: How much heat energy must be removed from 1.2 g of lead (specific heat = 0.128 J/g ºC) to cool it…

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Q: The heat of vaporization of water is 40.66 kJ/mol. How much heat is absorbed when 3.17 g3.17 g of…

A: Given that the heat of vaporization of water is 40.66 KJ/mol. The mass of water is 3.17 g. Here, the…

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.