Calculate the energy (in J) required to change the temperature of 15.0 g of ice at -25.0 oC to water at 88.5 oC. Provide your answer in scientific notation

Q: What quantity of heat in kJ must be removed from a 35.0 g sample of water initially at 43.0 oC for…

A: Given : Mass of water = 35.0 g Initial temperature of water = 43.0 oC And final temperature of water…

Q: 2. How much heat must be added to 110.0 g of ice at -18.0°C to change it to water at 47.5°C ? (Cice…

A: The following formula is used to calculate the required heat.

Q: What amount of heat (in kJ) is required to convert 14.2 g of an unknown solid (MM = 67.44 g/mol) at…

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Q: Using 2 mols of ice, a student performed an experiment to determine the molar enthalpy of fusion for…

A: Given : moles of ice = 2 mol Accepted value of ΔHfus = 6.01 KJ/mol And % error = 4.5 %

Q: 3.) How much heat (J) is required to convert a 90.10 g sample of ice at –45.0°C into to water at…

A: First the compound must be taken to the O℃ then it should melt . In these two step heat is required…

Q: Calculate the heat, in kJ, exchanged in the conversion of 20.0 g of steam at 104 °C to water at 10.5…

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Q: How much heat is required to vaporize 25.3 gg of water at 100 ∘C∘C? (ΔHvap(H2O)=40.7kJ/mol)

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Q: How much energy would be needed to freeze a 75.37-g sample of gallium at its freezing point of…

A: When liquid freezes energy is released because solid have greater intermolecular forces of…

Q: Carbon disalfide has a molar heat of vaporization equal to 26.8 k/mol and the nomal boiling point of…

A: Vapor pressure can be calculated for different temperature can be calculated by using Clausius…

Q: 69. Calculate the heat of vaporization of H;O at 120 °C and 1 atm pressure. The heat capacity of…

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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: Which segment of the heating curve for pure water shown below corresponds to the process of fusion?…

A: The correct option is given below:

Q: The main reason that distillation is a costly method forpurifying water is the high energy required…

A: Distillation is the process in which components of a mixture are separated on basis of different…

Q: Determine the total amount of heat in kJ needed to warm 36.9 g of ice at -29.4 °C to water at 39 °C.…

A:

Q: How many grams of ice can the amount of heat required to raise the temperature of 3.50 moles of…

A: Given data,Moles of water=3.50moles∆T=50.0oC∆Hm=6.01kJ/mol

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: Substance X is known to exist at 1 atm in the solid, liquid, or vapor phase, depending on the…

A: Given the melting point of the substance, X = 70. oC Given the heating of the substance X starts at…

Q: How to calculate the experimental value for the latent heat of fusion of water. 1969.4 cal heat…

A: Latent heat of fusion is the amount of heat required to melt 1 mol or ice at its melting…

Q: What amount of heat (in kJ) is required to convert 10.1 g of an unknown solid (MM = 83.21 g/mol) at…

A: We will write all steps occuring in the change os solid to liquid , then calculate heat required.

Q: How much heat (in joules) must be added to change 20.0g of H2O(s) at -10 degrees C to steam at 110…

A: Heat for changing the state of water from ice at – 10 C0 to 0 C0 can be determined as:Q1 = m s dT=…

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: Two 20.0 g ice cubes at -13.0 °C are placed into 245 g of water at 25.0 °C. Assuming no energy is…

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Q: How much energy (in kJ) is needed to heat 5.28 g of ice from -18oC to 30.0oC?  The heat of fusion of…

A: Given : Mass of ice = 5.28 g Initial temperature of ice = -18.0 oC Final temperature of water = 30.0…

Q: What is quantity of heat (in KJ) associated with cooling 212.7 g of water from 25.60 C to ice at…

A:

Q: How much heat in k) is required to convert 415 g of liquid H,0 at 24.3°C into steam at 149C (Assume…

A: Specific heat capacity is defined as the quantity of heat absorbed by 1 g of substance to raise the…

Q: Two 20.0 g ice cubes at -16.0 °C are placed into 215 g of water at 25.0 °C. Assuming no energy is…

A: mass of ice, m1=20g                                                                     mass of…

Q: If an insulated calorimeter contains 5.0 kg of ice at -60oC and later was heated up to 160o C.…

A:

Q: Calculate the amount of energy required to convert 6.23 moles of ice at -24.67 °C to water at 10.61…

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

Q: How much heat does it take to raise 50.0 g of liquid water to 120 °C if its initial temperature is…

A:

Q: How much heat is required to convert 25g of ice at -6.0 ˚C to water vapor at 102 ˚C? (ΔHfus =…

A: We have 25 g of ice at -6°C , we have to calculate the required to convert it to vapour at 102°C.

Q: A 37.0 g sample of ice is held at -12.0 °C. If the ice absorbs 25800 J of heat, what state and…

A: We can determine the final state of the water from the final temperature.  The formula is : q = m ×…

Q: molar heat of vaporization of carbon CS2 is 28.4 kJ/mol at its nomal boiling point of 46 degrees…

A: The energy is required to vaporize one mole of liquid is known as molar heat of vaporization.

Q: How many kilojoules are needed to vaporize 10.0 g of H2O(1)?

A: Number of moles of water is determined as follows, No.of mol= Mass/Molar mass = 10.0 g/18.02 g.mol =…

Q: Calculate the total amount of heat needed to convert 22.50 g of solid carbon tetrachloride, CC14, at…

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Q: Calculate the final temperature of a mixture of 130.0  g of ice initially at -15.50 °C and 337.0  g…

A: The heat gained by the ice to its melting point is calculated as: Here, C = Specific heat Capacity…

Q: What is the heat of vaporization of CCI,?   CCI (1) CCL₂(g); Delta H^ o =?kJ/mol   Use standard…

A: Enthalpy of reaction is calculated by subtracting the enthalpy of product minus enthalpy of…

Q: How much energy (in kJ) is required to get a 100.0 g ice cube at -10.0°C to completely melt and then…

A: First calculate the energy to convert from ice to solid, then its fusion heat and then solid to…

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: If a particular liquid has a normal boiling point of 338.0 K and a vapor pressure of 75.0 mmHg at…

A: Hi, as you have posted multiple questions and have not mentioned which question you want us to solve…

Q: How much heat in joules is needed to raise the temperature of 5.0 L of water from 0°C to 89.0°C?…

A:

Q: -20.9 °C to water at 38.3 °C. becfic heat capacities: ce = 2.108 J/g.°C water = 4.184 J/g.º℃ eat of…

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

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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.