An unknown mass of each of the following substances, initially at 25.0 °C, absorbs 1960 J of. heat. The final temperature is recorded as indicated. Find the mass of each substance.

Q: An automobile engine provides 581 Joules of work to push the pistons and generates 2167 Joules of…

A: The relationship between change in internal energy (∆E), heat (q) and work done (W) is given by…

Q: 2. A 100.0 g piece of metal at 550C is added to 25.0g of water at 250C, the final temperature is…

A:

Q: A piece of metal with mass 20.00 g at room temperature [25.0oC] was heated up to 90.0oC. This metal…

A: a) The amount of heat water gained is given by Q as Q = mCΔT where m = mass of water = density X…

Q: A 45.61 g sample of a substance is initially at 24.6 °C. After absorbing 2495 J of heat, the…

A: Mass of sample m = 45.61 gramInitial temperature T1 = 24.6 °CFinal temperature T2 = 119.5 °CHeat…

Q: The specific heat capacity of silver is 0.24 J/°C·g. Calculate the energy required to raise the…

A: Heat capacity is an extensive property.  But specific heat capacity is intensive property.  Heat…

Q: A sample of nickel is heated to 99.8C and placed in a coffee-cup calorimeter containing 150.0 g…

A: Heat change in a body is depends on the mass and temperature change of the body. heat change = mass…

Q: Yeong determined the AT for their 62.9874 g metal cylinder was -69.4 °C. They also determined that…

A: Given: For metal:mass, m1=62.9874gchange in temperature, ∆T1=-69.4∘C  { -ive sign means heat is lost…

Q: Piece of metal with a mass of 48.342 g at an initial temp of 108 C is placed into 50 g of water…

A: Given, mass of metal =48.342 graminitial temperature of metal =108 °Cmass of water =50 graminitial…

Q: a sheet of gold weighing 8.4g and at a tempearture of 14.2 C is placed flat on a sheet of iron…

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Q: A 1.69 gram sample is heated to an initial temperature of 75 oC. The sample is then placed in a…

A:

Q: a 347.9 gram sample of copper is initially at 27.4 C and it absorbs 18.66kJ of heat from…

A: Amount of heat,Q required to change the temperature of a substance of mass ,m and specific heat…

Q: A 10 g piece of copper at 145 oC is placed in 150 mL of water. The initial temperature of water is…

A:

Q: If a student used a sample of metal that was wet, several percent of the apparent mass of the metal…

A: Heat capacity is the amount of heat energy required by a substance to raise its temperature by 1oC.…

Q: A gas is compressed from an initial volume of 5.55 L to a finalvolume of 1.22 L by an external…

A: The expression for the work done,  W=-P(Vf-Vi)W=-1.00 atm (1.22 L-5.55 L)W=4.33 L (101.33 J)1 L…

Q: Suppose the 25.0 g of the following substances all initially at 27.0 °C absorb 2.35 kJ of energy.…

A: Amount of heat,Q required to change the temperature of a substance of mass ,m and specific heat…

Q: 1. Melted methane was ignited and used to heat water in a thin metal container. After a short period…

A: Enthalpy of combustion is defined as the amount of heat released by burning of one mole of compound.

Q: A reaction between HCI and NaOH is being studied in a styrofoam coffee cup with a lid and the heat…

A: HCl and NaOH undergo a reaction called acid-base neutralisation reaction in which salt and water is…

Q: 21) A 4.50-g sample of liquid water at 25.0 °C is heated by the addition of 112 J of energy. The…

A: To solve this problem, we can use the formula: q = mcΔT where q is the heat energy absorbed by the…

Q: A 25.00 g piece of metal was heated at 100 degrees Celsius and was introduced to into a calorimeter,…

A: The given problem can be solved by using the formula given below as; -Qmetal=+Qwater…

Q: To treat a burn on his hand, a person decides to place an ice cube on the burned skin. The mass of…

A: The mass of the ice sample is = 19.0 g The initial temperature of the water is = -11.5oC The final…

Q: You want to determine the heat capacity of an unknown metal sample in order to help identify it. To…

A:

Q: An unknown mass of each substance, initially at 21.0 ∘C, absorbs 1970 J of heat. The final…

A: Given;

Q: 6. A 128g piece of Iridium at 95 C is dropped into a 45.2g of water at 17.3 C. The final temp of the…

A:

Q: In the laboratory a student finds that it takes 200 Joules to increase the temperature of 15.0 grams…

A: • The values provided in the question are:-    i) Mass of magnesium, m = 15.0 g  ii) Initial…

Q: What quantity of energy is needed to heat a 1.00 mole sample of H2O ‍ from  -30.0 degrees C to 140.0…

A: Since in heating H2O ‍from -30 0C to 140 0C following steps will happen 1) Heating of ice from -30…

Q: A 36.62 g sample of a substance is initially at 24.8 °C. After absorbing 1921 Jof heat, the…

A:

Q: when 1.50 L of 1.00 M sodium sulfate at 30.0° C is added to 1.50 L of 1.00 M barium nitrate solution…

A: The balanced chemical equation for the sodium sulfate and barium nitrate can be written as: The…

Q: To treat a burn on his hand, a person decides to place an ice cube on the burned skin. The mass of…

A: Answer:Increase in temperature of ice is 3 step process:Ice absorbs the heat and reaches its melting…

Q: 5. Sam burned propane to heat 500.0 g of water that had an initial temperature of 20.0°C. The heat…

A: Given that 500 grams of water had an initial temperature of 20oC and a heat of 84.6 kJ was added to…

Q: 2. A piece of a metal with an unknown identity has a mass of 23.8 g. The sample is heated to 125°C…

A: Mass of metal = 23.8 g Temperature = 125 0C mass of water = 50 g Initial temperature = 24 0C Final…

Q: 4. A 10.0 gram piece of Al, originally at 100°C, is dropped into a calorimeter cup containing 100.0…

A:

Q: 100 g of water at 86 °C is mixed with 200 g of water at 17 °C. What is the final temperature of the…

A: apply the concept ,  heat taken = heat given

Q: when 108g of water at a temperature of 22.5°C is mixed with a 65.1 g of water at an unknown…

A:

Q: You are given a metal and asked to identify it by determining its specific heat. You place the metal…

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