Lauric acid (C12H24O2) is 32.86 kJ/mol and enthalpy of ol. The melting point is 43.2°C. How much heat is absorbed to .650g sample from 22.0°C to 56.3°C? The heat capacity of the heat capacity of the liquid is 3.62 J/g°C.

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: What amount of heat (in kJ), is required to convert 10.1 g of an unknown liquid (MM = 67.44 g/mol)…

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: Using the provided data, calculate the amount of heat, in kJ, required to warm 27.3 g of solid…

A:

Q: What amount of heat (in kJ) is required to convert 15.8 g of an unknown solid (MM= 83.21 g/mol) at…

A: In the process of conversion, following steps will happen 1) Heating of solid from -5°C to 10.3 °C…

Q: A 48.5-g sample of ice at -10.0°C is mixed with 110.0 g water at 85.0°C. Calculate the final…

A:

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: 104. A 685 mL sample of Hg(l) at 20°C is added to a large quantity of liquidN kept at its boiling…

A: Given that : The volume of Hg(l) = 685 mL Initial temperature of mercury = 20°C The specific heat of…

Q: Ethanol (CH:CH2OH) has a boiling point of 78.23 °C. The liquid phase has a specific heat capacity of…

A: Matter have intermolecular force which is responsible for its physical state. Thermal energy may…

Q: A 31.5-g sample of ice at - 10.0°C is mixed with 110.0 g water at 85.0°C. Calculate the final…

A: The answer is as follows:

Q: A 17.5-g sample of ice at –11.6°C is mixed with 119.8 g of water at 80.0°C. Calculate the final…

A: The phase change involving different substances always occur after gaining/losing a specified heat.…

Q: The specific heat capacity of water is 4.180J/g∗K, and water's heat of fusion is 335J/g    ( water…

A: The amount of heat released on cooling titanium tetrachloride from 60oC to 35oC can be determined by…

Q: A sample of C₃H₄Br₂ has a normal boiling temperature of 131.5 °C. The enthalpy of vaporization for…

A: The heat required to change the temperature form T1= 97.5 °C…

Q: A 118.1 gram sample of an unknown substance (MM = 189.50 g/mol) is cooled from 233.0 °C to 147.6 °C.…

A: The question is based on the application of Hess law. it states that Net energy change for process…

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: What quantity of heat in kj is required to convert 34.0 of ethanol (C2H5OH)at 25.0 degree Celsius to…

A: In this question we have to first Calculate the heat needed (q1) to convert 34.0 g of ethanol…

Q: he heat of vaporization of water is 540 cal/g. How much heat is needed to change 2.

A: Solution-    Heat of vaporization of water= 540 cal/g means amount of heat required to vaporize…

Q: The boiling point of Freon-12 is -29.8 celcius. How much thermal energy is absorbed by 455 g of…

A: Given: The boiling point of Freon-12 = -29.8°C Specific latent heat of vaporization of Freon-12 =…

Q: Carbon disulfide, CS2, is a colorless, toxic, highly volatile, and flammable liquid. What is the…

A: Given, CS2(l) ➝ CS2(g) ; ∆H° = ? ∆Hf°[CS2(l)] = 89.7 kJ/mol ∆Hf°[CS2(g)] = 116.9 kJ/mol Heat of…

Q: What information about water is needed to calculate theenthalpy change for converting 1 mol H2O(g)…

A: Since for the above process we first need to convert H2O (g) to H2O (l) and than cool it to  80 °C…

Q: A sample of C₃H₄Br₂ has a normal boiling temperature of 131.5 °C. The enthalpy of vaporization for…

A: At a pressure of 540 mm Hg, the boiling temperature in oC of C₃H₄Br₂ is;…

Q: 3. What mass of water would need to evaporate from your skin in order to dissipate 1.7X10 J of heat…

A: Please find your solution below : Calorimetry is a branch of science that measures the change in…

Q: A 123.6 gram sample of an unknown substance (MM = 189.50 g/mol) is cooled from 233.0 °C to 147.6 °C.…

A: Given: Mass of sample is 123.6 g. Molecular mass is 189.50 g/mol. Heat capacity of liquid is 1.62…

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: 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: A 110.1 gram sample of an unknown substance (MM = 189.50 g/mol) is cooled from 233.0 °C to 147.6 °C.…

A: Answer:- This question is answer by using the simple concept of calculation of heat released using…

Q: What amount of heat (in kJ) is required to convert 29.3 g of an unknown solid (MM = 67.44 g/mol) at…

A: When a certain amount of heat is added to a system, the temperature associated with that system is…

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

A:

Q: Three 15.0 g ice cubes at -28 C are placed in 350 g of water at 30 C. Assuming that no energy is…

A: Assuming the final temperature is T degree Celsius and is greater than 0. Since the heat required in…

Q: 5. How much energy is needed to heat a 68.9g sample of water at 88.5°C to steam at 103.7°C? 6. How…

A:

Q: Calculate the total heat flow, qtotal, when 15.0 g of water is heated from -5.0°C to 30°C. The heat…

A: When 15.0 g of water is heated from -5.0 °C to 30 °C , then three process would be involved in it .…

Q: Two 20.0 g ice cubes at −18.0 ∘C are placed into 295 g of water at 25.0 ∘C. Assuming no energy is…

A: Q = nC ∆T Q= nL

Q: Enter your answer in the provided box. From the data below, calculate the total heat (in J) needed…

A: Given that mass of ice = 20.00 g Initial temperature= –3.25 °C Final temperature = 0.550 °C

Q: A sample of C₃H₄Br₂ has a normal boiling temperature of 131.5 °C. The enthalpy of vaporization for…

A:

Q: How much heat is needed to convert 36.5g of ice at 0°C to water at 66°C? ΔHfus of ice = 6.01 kJ/mol…

A: given, mass of Ice = 36.5 g Initial temperature (Ti) = 0°C Final temperature (Tf) = 66°C Note: molar…

Q: How much energy is required to melt 393 g of ice into liquid water at 0 C? The heat of fusion for…

A: Heat of fusion = 333.6 J/gMass of ice = 393 gprocess of fusion is Ice(s , 0 °C)  → ice (l,  0°C)

Q: From the data below, calculate the total heat (in J) needed toconvert 0.333 mol of gaseous ethanol…

A: We will use the formula,  Where Q= Heat change m= mass in grams = Change in Temperature c= specific…

Q: Two 20.0 g ice cubes at -18.0 C are placed into 225 g of water at 25.0 'C. Assuming no energy is…

A: Given: Two 20.0 g of ice mass = 20.0 + 20.0 = 40.0 g Then number of moles of ice or water is, =…

Q: Two 20.0 g ice cubes at -10.0 °C are placed into 265 g of water at 25.0 °C. Assuming no energy is…

A: Two 20.0 g ice cubes at - 10.0 °C are placed into 265 g of water at 25.0 °C .We have to calculate…

Q: Calculate the heat absorbed when 117 g of liquid ethanol at 25.0°C is converted to gaseous ethanol…

A: The heat absorbed in the above process is given by  Q = m X Cl X ΔTl + ΔHvap X n + m X Cg X ΔTg…

Q: A sample of C3H4Br2 has a normal boiling temperature of 131.5 °C. The enthalpy of vaporization for…

A:

Q: What is the total heat flow if 40 grams of steam at 143°C is cooled to become water at 34°C? The…

A: mass = 40g  specific heat of steam is 2.0 J/g • °C   specific heat of water is 4.18 J/g • °C heat of…

Q: A 110.1 gram sample of an unknown substance (MM = 189.50 g/mol) is cooled from 233.0 °C to 147.6 °C.…

A: Mass of the unknown substance= 110.1 g Heat capacity of liquid = 1.62 J/g･°C Heat capacity of the…

Q: A 24.36 g sample of liquid nitrogen (N2) starts at a temperature of -292 oC. How much energy is…

A:

Q: What quantity of heat is required to convert 49 g of ethanol (C₂H₅OH) at 23.0°C to a vapor at 78.3°C…

A: Given : Initial temperature of ethanol = 23.0 oC  Final temperature of ethanol = boiling point…

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

A:

Q: How much heat is required to warm 25.0 g of H2O from a solid at -12ºC to a liquid at 60ºC? ∆Hfus =…

A:

Q: Calculate the heat required to convert 25.0 g solid ethanol at -135.0 C to liquid at 72.0 C.…

A:

Q: The heat of vaporation of water is 40.7 kJ/mol. How much heat is required, in J, to convert 259mg of…

A: Given : Mass of water = 259 mg And heat of vaporisation of water = 40.7 KJ/mol Since 1 g = 1000 mg…

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.