The heat of fusion for a material can be found by AHfus = m x Cp x AT where AHfus is the heat of fusion per gram, m is the mass of the solid substance being melted, C, is the specific heat of the surrounding medium, and ATis the change in the temperature of the surrounding medium as the solid melts. Calculate the heat of fusion of a 10.00-g piece of Substance X. Use 4.18 J/g-° C as the specific heat, and assume a AT of 10.00 °C. Express your answer to three significant figures (units of J/g) O 41.8 O 4.18 O 418

Q: 6. How much heat is required to raise the temperature of 215 g of liquid CH3OH from 20.0°C to 30.0°C…

A:

Q: Substance D has the following properties: ΔHvap = 30.5 kJ/mol ΔHfus = 5.9 kJ/mol Tb = 89.4 °C Tm…

A: Mass of substance =107.6 grams Molar mass of substance =75 grams Numbe rof moles of substance=Mass…

Q: A 10-g ice cube, initially at 0ºC, is melted in 100 g of water that was initially 20ºC. After the…

A: Hello. Since the question contains multiple parts the first part is solved. In case the solution for…

Q: Calculate the amount of energy that is released when 400 grams of water vapor cools from 115oC to…

A: To solve this problem we have calculate energy released during temperature change and phase change…

Q: A 0.547 g0.547 g sample of steam at 104.3 °C104.3 °C is condensed into a container with 4.82 g4.82 g…

A: The mixing of steam and water involves the loss of heat energy by steam which will be gained by…

Q: For the process X(1) X(g), where X is a metal, AH°-433.4 kJ/mol and AS°=101.1 J/(K mol). What is the…

A: GivenX(l) → X (g)∆H° = 433.4 kJ/mol1 kJ = 1000 J∆H° = 433400 J/mol∆S° = 101.1 J/K.mol

Q: The AHvap of a certain compound is 11.92 kJ. mol-¹ and its A.Svap is 63.87 J. mol-¹·K-¹. What is the…

A: The boiling point is the temperature at which liquid compounds convert into vapour.

Q: Question 8.a of 10 A 432.1 gram sample of an unknown substance (MM = 92.41 g/mol) is heated from…

A: Given :  Mass of sample = 432.1 gm  Molar mass of sample = 92.41 g/mol  Initial temperature = -23.1…

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

A: (a)Given, The enthalpy of fusion of ethanol is 5.02 kJ/mol. The enthalpy of vaporization of ethanol…

Q: An ice cube at 0.00 °C with a mass of 23.5 g is placed into 550.0 g of water, initially at 28.0 °C,…

A:

Q: S vap What is the boiling point of this compound? boiling point:

A: We will calculate boiling point

Q: How much energy is required to heat 17.1 g acetone (MM = 58.08 g/mol) from a solid at -114.0°C to a…

A: To calculate the total energy required, we need to consider the energy required for each step of the…

Q: Energy Constants for H2O 334 J/g = Heat of Fusion (Hf) 2260 J/g = Heat of Vaporization (Hv) 2.11…

A:

Q: The heat of fusion of Hg at its normal melting point of -38.9°C is 2.82 calg^-1. The densities of…

A: Density is the ratio of mass to volume of the solution and melting point is the temperature at which…

Q: If 31.5 g of LiBr are dissolved 350.0 g of water at 20.0 °C in an insulated container, a temperature…

A:

Q: Calculate the heat in kJ for 175 g of water vapor condensing to liquid water from 228.0 oC to 175.0…

A: Given: Mass of water vapour = 175 g Initial temperature (T1) = 228°C Final temperature (T2) = 175°C…

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.