Use the information provided below to calculate the quantity of heat (in kJ) required to convert 63.01 g of substance A from an initial temperature of 54.44°C to a final temperature of -6.64°C. The molar mass of the substance is 27.1 g/mol. Melting Point of A = 1.686°C Heat of fusion = 11.19 kJ/mol %3D %3D Boiling point of A = 108.5°C Heat of vaporization = 71.95 kJ/mol %3D %3D Solid Liquid Gas Specific heat (J/g°C) 2.89 4.14 6.42 Report your answer to the tenths place and do not include units. Do not include a sign with your answer.

Q: Calculate heat change in joules for vaporization of 3.00 g of water at 100 ∘C∘C.

A: Heat of vaporization: The amount of heat required to convert 1g liquid into vapor. Heat vaporization…

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

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

Q: Predict the relative boiling points of the substances in Figure 9 and rank these boiling points from…

A: The intermolecular force present in alcohols is hydrogen bonding while in the alkanes the…

Q: How much heat is emitted when 4.25  g  of water condenses at 25  ∘C ? The heat of vaporization of…

A:

Q: How much heat would need to be removed to cool 29.5 g of water from 25.6°C to -10.7°C? Csolid =…

A: We have to predict the amount of heat removed from the water to have given temperature change.

Q: How much heat would need to be removed to cool 50.3 g of water from 25.6°C to -10.7°C? Csolid =…

A: Mass of water = 50.3 g In the conversion of water from 25.6 ◦C to – 10.7 ◦C there is following steps…

Q: Explain how heat energy affects a substance. Describe how the particles change as the system is…

A: In this question, we have to find out the correct answer of given problem by the help of the…

Q: Determine the amount of energy required to cool down 450.5 g of liquid iron at 1853 ∘C to 25 ∘C, the…

A: Melting point is the equilibrium temperature at which a substance exists in both solid and liquid…

Q: A 0.790-g piece of lithium metal is dropped into a mixture of 50.0 g water and 50.0 g ice, both at…

A: The relation of heat energy, mass, heat capacity and change in temperature can be given as…

Q: Using the following data shown below for the heating curve and calculate the total amount of heat…

A: The specific heat capacity is defined as the amount of heat energy needed to raise the temperature…

Q: How much heat would be required to convert 5.31 mol of a pure substance from a liquid at 40.0°C to a…

A: It is given that 5.31 mole of a pure substance is heated from a liquid to gas from an initial…

Q: For mercury m.p. -39 degrees C                         b.p. 357 degrees C Heat of fusion 11.6 J/g @…

A: The amount of heat released in conversion of 20.0g of mercury vapor at 387degrees Celsius to liquid…

Q: The heat of fusion of pure silicon is 43.4 kJ/mol. How much energy in kJ would be needed to melt a…

A: No. of moles = Given mass / Molar mass   No. Of moles of Si = 7.04g / 28.086g/mol No. Of moles of Si…

Q: Which processes absorb heat? vaporizing 65.0 mL of water freezing 12.5 g of water condensing 90.0 mL…

A: When solid changes to liquid or gas, it will require energy, and hence heat is absorbed.  When a…

Q: Use the information provided below to calculate the quantity of heat (in kJ) required to convert…

A: Given: Mass = 55.77g Molar mass= 29.3 g/mol Initial Temperature = 120.5°C Final Temperature = -…

Q: A pure sample of Substance S is put into an evacuated flask. The flask is then heated steadily and…

A: The graph for substance S given is,

Q: Which procedure would produce the best data for comparing the electrostatic forces between the…

A: The electrostatic attraction force are found in the ionic compounds. When two opposite ions come to…

Q: The graph shows a heat curve for an unidentified substance discovered by the Mars rover. What is…

A: We can determine Fusion temperature ( melting or freezing point ) and vaporization temperature from…

Q: Ethanol (C2H5OH) melts at −114 ∘C and boils at 78 ∘C. The enthalpy of fusion of ethanol is 5.02…

A: Given Mass of ethanol = 40.5 g Initial temperature =  34 ∘C  Final temperature =  78 ∘C Ethanol…

Q: The heat of fusion of pure silicon is 43.4 kJ/mol. How much energy in kJ would be needed to melt a…

A: Given: The heat of fusion of Si, (∆Hfus) = 43.4 kJ/mol. The mass of Si, (m) = 9.29 g. The molar mass…

Q: How much heat will 325.0 g H2O at 15.0 oC absorb if the temperature in increased to 90.0 oC? The…

A: Solution

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

A: The molar mass of ethyl chloride is : MC2H5Cl=M2C+M5H+MCl           =[12×2+5×1+35.5]           =64.5…

Q: The heat of fusion of pure silicon is 43.4 kJ/mol. How much energy in kj would be needed to melt a…

A:

Q: How many joules of energy are required to change 50.0 g of Cu from 25.0°C to a liquid at its melting…

A: Given:  Mass of Cu given= 50.0 g  Initial temperature= 25°C  Final temperature= 1083°C  Specific…

Q: Find ΔH, ΔE, q, and w for the freezing of water at -10.0 °C. The specific heat capacity of ice is…

A: Given:  Specific heat of ice = 2.04 J/goc Heat of fusion = -332 J/g

Q: Based on the data below, what mass of propane must be burned to supply the heat required to vaporize…

A: Enthalpy of vaporization (∆Hvap) :-  The enthalpy change involved when one mole of a liquid undergo…

Q: How much heat (in kJ) would be required to convert 21.0 g of ice to water at 0°C?

A: Concept: The branch of chemistry that deals with the structure, properties and the reaction of the…

Q: How much heat is required to convert 20 gr. of ice at -5 0C to water at 80 0C? Specific heat of ice…

A: Given that : Mass of ice (m) = 20 g Specific heat of ice (Cice)= 0.5 Cal/g0C Specific heat of fusion…

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: Which of the following statements is true in regards to heat? A When you hold a piece of ice,…

A:

Q: A 45.0 g chunk of ice at -12°C absorbs 12.0 kJ of heat. How many grams of ice melt? sp heat of ice…

A: Ice is at -12°C and it can not melt at this temprature For ice to melt temperature should be 0°C…

Q: From the data below, calculate the total heat (in J) needed to convert 0.322 mol of gaseous ethanol…

A: In the given process, The gaseous ethanol will be cooled from 300°C to boiling point temperature.…

Q: An ice cube of mass 65 g is taken from a freezer at -15°C and dropped into 125 cm of water at 85°C.…

A: Since you have posted multiple questions, we are entitled to answer the first only. 1) Given: Mass…

Q: Calculate the total energy in kJ required to change the temperature of 591 g water from 96.0  oC to…

A: The process of cooling water from  96.0  oC to -111 oC will have below steps. 1) cooling hot water…

Q: 11. Based on the heating graph shown in the figure for a substance, X, at constant pressure, Energy…

A: 11.a) Heat transfer     = mass × temperature change × specific heat  Or,  Q = m × T × S  Or,   T =…

Q: Which of the following does NOT represent a step on the heating curve of water?

A:

Q: Consider the heating curve for 1.00 mole of an unknown substance as it is heated from a solid to a…

A: We are having an heating curve of substance, we have to predict line having both solid and liquid…

Q: How much heat, in kilojoules, is released when a 67.47 g sample of cesium metal is cooled from 734…

A:

Q: Which of the following substances (initially at room temperature) dose require the greatest amount…

A: Higher the boiling point greater will be the amount of heat required to melt 1 mol of solid

Q: How much heat is required to convert 135 g of ice at −15 °C into water vapor at 120 °C?

A: heat required is calculated by,q=m c ⊿Twhere,m=mass of samplec=specific heat of substance ⊿T=the…

Q: A 5.00 g sample of water vapor, initially at 155*C is cooled at atmospheric pressure, producing ice…

A:

Q: Use the information provided below to calculate the quantity of heat (in kJ) required to convert…

A: Note - Since you have asked multiple questions, we will solve the first question for you. If you…

Q: How much energy (in calories) is required to melt 25.0 g of ice to water at 0.0 °C, heat the liquid…

A: Given that, heat of fusion of water = 79.7 cal g-1 To convert 25 g of ice at 0 ∘C to 25 g of water…

Q: Determine the amount of energy required to cool down 450.5 g of liquid iron at 1853 Degree C to 25…

A: The heat required or released to change the state of a particular substance, there are two types of…

Q: How much heat will it take to raise the temperature of 10 g of ice from −30°C to −20°C?   The…

A:

Q: Determine the amount of heat, in kJ, required to heat 19 g of solid Ca at 125 C to 851C (still…

A: Given; mass, temperatures

Q: Calculate the total energy in kJ required to change the temperature of 786 g water from 96.0  oC to…

A: Heat energy is released when the temperature of water changes from 96oC to -111oC. Firstly, the…

Q: Which of the following statements regarding heating curves is incorrect? Select one: Oa. When a…

A: When there is change of phase from solid to liquid or from solid to liquid. The energy change occurs…

Q: Find ∆H, ∆E, q, and w for the freezing of water at -10.0°C. The specific heat capacity of ice is…

A: Given:  Specific heat of ice = 2.04 J/goc Heat of fusion = -332 J/g Determination of delta H: The…

Q: The melting point of calcium is 851 °C, its solid-state specific heat (Csolid) is 0.632 J/g°C, and…

A: a) Since at its melting point, the solid can be directly melted  hence the heat required will be  Q…

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.