1. A 376−g aluminum engine part at an initial temperature of 19.29 C absorbs 57.7 kJ of heat. What is the final temperature of the part (c of Al = 0.900 J/g.K)?

Q: 170 mL of 0.25 M HNO3 are mixed with 125 mL of 0.30 M KOH in a calorimeter. If the solutions have an…

A: Volume of HNO3 = 170 mL Molarity of HNO3 = 0.25 M Volume of KOH = 125 mL Molarity of KOH = 0.30 M…

Q: If 63.50 g of an unknown metal at 97.6 °C initially produced a resulting temperature of 39.5 °C when…

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

Q: 22.9 mL of an unknown acid was neutralized by mixing it with 50.3 mL of NaOH in an aqueous solution.…

A:

Q: 5. Calculate the approximate final temperature of water in a coffee cup calorimeter if 33.9 kJ of…

A: Use calorimetry principle to get answer Heat flow from high temperature to low temperature. Heat=…

Q: 2. What is the specific heat of a metal whose mass is 94.5 g and the temperature changes from 48 °C…

A: Consider the given information is as follows; Mass of the metal = 94.5 g Initial temperature T1…

Q: 307 g sample of an unknown mineral was heated to 98.7 °C and placed into a calorimeter containing…

A:

Q: 4. How much will the temperature of a cup (180 g) of coffee at 95 °C be reduced when a spoon…

A:

Q: A 44.3 g sample of water at 100.00 °C (specific heat of water = 4.184J/g.°C) was placed in an…

A:

Q: What is the final temperature when 77.4 g of water at 72.7°C is mixed with 28.1 g of water at…

A: Given: Mass of water at 72.7°C= 77.4 g Mass of water at 32.7°C= 28.1 g

Q: What is the q (heat) for 140.2 g of PCl3 decomposing to form chlorine gas and elemental phosphorus?…

A: Decomposition reaction of PCl3 is ,∆H°rxn =1207 kJMass of PCl3 = 140.2 g Molar mass of PCl3 = 137.32…

Q: Sodium chloride is added in cooking to enhance the flavor of food. When 10.0 g of Na Cl are…

A: Given information,     Mass of sodium chloride is 10.0 g      Volume of water is 200.0 mL…

Q: A coffee cup calorimeter, including that water it contains, has a heat capacity of 425 J/K, and is…

A:

Q: What is the heat of a reaction, in joules, with a total reaction mixture volume of 69.0 mL if the…

A:

Q: 5.04 x 10-3 mole of a compound is added to 41.0 g of water in a styrofoam cup and stirred until it…

A: Given,Mass of water = 41.0g.Temperature change = 23.4600C – 23.4200C…

Q: The molar heat of solution (AH,0ln) of sodium hydroxide is -445.1 kJ/mol. In a certain experiment,…

A: Molar heat of solution is defined as the energy released or absorbed per mole of solute being…

Q: A 22.0 g sample of pure iron at 85 °C is dropped into 73 g of water at 20. °C. What is the final…

A: Mass of pure iron sample = 22.0 g Initial temperature of pure iron sample = 85o C  Mass of water =…

Q: 7. 200g of copper is placed in an oven. The hot metal is removed from the oven and quickly added to…

A:

Q: )How much will the temperature of a cup (180 g) of coffee at 95 °C be reduced when a 45g silver…

A: Specific heat capacity is defined as the amount of heat required to raise the temperature of 1…

Q: 7. If it takes 105 joules to warm 100 grams of a substance from 20°C to 25°C, what is the specific…

A: Since you have asked multiple question, we will solve the first questionfor you. If you want any…

Q: A 6.55 g sample of an unknown salt (MM = 116.82 g/mol) is dissolved in 150.00 g water in a coffee…

A: The total mass of a solution is the summation of the mass of solute and the mass of solvent. The…

Q: 11. A piece of unknown solid substance weighs 437.2 g, and requires 8460 J to increase its…

A:

Q: 2) When 100 g of unknown metal at 100 °C added to a calorimeter containing 50.00 g of water the…

A: Specific heat capacity is the amount of heat that is required to rise a temperature of 1 kg…

Q: The heat of combustion (AH) for propane (molar mass 44.11 g/mol) is -2222 kJ/mol. The heat generated…

A: First we would calculate the heat generated by combustion of given mass of propane.  Then we would…

Q: A 50.0 g sample of unknown metal is heated to 127.1°C, then placed in a calorimeter containing 65.0…

A: Here, according to thermodynamics, we can say that when any hot body comes in touch with a cool…

Q: . A 25.00 gram sample of barium chloride was dissolved in 75.00 grams of water. If the calorimeter…

A: The question is based on the concept of chemical thermodynamics. we have to calculate heat produced…

Q: A gas expands and does work on the surroundings equal to 2.17 L atm. At the same time, it releases…

A: First law of thermodynamics It states that the internal energy of a system is equal to the heat…

Q: What will the final temperature be if a 5.00-g silver ring at 37.0℃ gives off 25.0 J of heat to its…

A:

Q: A gas expands and does work on the surroundings equal to 3.55 L atm. At the same time, it releases…

A: Energy is calculated as follows

Q: When 6.54 grams of Zn is placed in 500.0 mL of 1.00 M CuSO4(aq) in a coffee cup calorimeter, it…

A: Given data,Mass of Zn=6.54gMolarity of CuSO4=1.00MVolume of CuSO4=500mL=0.5LTemperature…

Q: 3. A 74.5 g piece of metal at 86.0°C is placed in 133 g of water at 21.0°C contained in a…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: 2. A piece of Cu metal is heated in a test until the temperature reaches 96 °C and dropped into a…

A: 2. A piece of hot Cu metal at 96 °C is dropped into a calorimeter, containing 50 mL of water at 27…

Q: What is the energy change of a system as it does 12 J of work and absorbed 27 J of heat?

A: To calculate the energy change of the system if the work done by the system is 12 J and it absorbs…

Q: A gas expands and does work on the surroundings equal to 4.92 L atm. At the same time, it releases…

A: Given: Work done (W) = 4.92 L atm Heat released by the system according to sign convention (q) = -…

Q: Make sure that you show all work with units and labels. Round your answers to the appropriate number…

A: The balanced Chemical equation can be written as - 1Mn2O3 +  6HCl -----> 2MnCl3 + 3H2O   Here ,…

Q: When a 6.50 g sample of solid sodium hydroxide dissolves in 100.0 g of water in a coffee-cup…

A: The formula used to calculate heat: m is the mass. Cp is the heat capacity. T2 and T1 are the…

Q: What is the heat of a reaction, in joules, with a total reaction mixture volume of 67.3 mL if the…

A: