How many milliliters of water at 23 °C with a density of 1.00 g/mL must be mixed with 180 mL (about 6 oz) of coffee at 95 °C so that the resulting combination will have a temperature of 60 °C? Assume that coffee and water have the same density and the same specific heat.

Q: When 151.0 mL of water at 26.0°C is mixed with 46.0 mL of water at 85.0°C, what is the final…

A: Aplly calorimetry principle Q= mc∆T  Heat flow from high Temperature to low temperature.

Q: 4. When 155 mL of water at 20.0°C is mixed with 75.0 mL of water at 80.0°C, what is the final…

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Q: When a solid dissolves in water, heat may be evolved or absorbed. The heat of dissolution…

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Q: When a solid dissolves in water, heat may be evolved or absorbed. The heat of dissolution…

A: Mass of CuCl2 = 4.07 g   mass of water = 109.30 g  Hence, mass of solution m = (4.07 g) + (109.30 g…

Q: In the laboratory a "coffee cup" calorimeter, or constant pressure calorimeter, is frequently used…

A: Given that : Mass of tin (mt) = 19.19 g Initial temperature of tin = 97.29°C Mass of water (mw) =…

Q: A 20.8 g piece of metal has a specific heat of 0.52 J/g°C. It was heated to 9.5°C then placed inside…

A: Formula used :  -q(lost) = q(gained) If no heat is lost to the surrounding.

Q: The specific heat of copper metal is 0.385 J·g -1·C -1 how many J of heat are necessary to raise the…

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Q: solid dissolves in water, heat may be evolved or absorbed. The heat of dissolution (dissolving) can…

A: The heat of a system remains…

Q: 4. A 5.00 gram sample of an unknown metal was placed in a beaker of boiling water (99.58 °C). After…

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Q: How much heat is required to warm 1.50 L of water from 25.0°Cto 100.0°C? (Assume a density of 1.00…

A: We can solve this problem by using the following relation: q=m×c×△T Where: q=Heatc=specific heat(…

Q: A metal is thought to be silver or iron. When 8.0 g of the metalabsorbs 23.50 J, its temperature…

A: (a) q = ms∆T 23.50 = 8.0 x s x ( 6.5 0 s = 0.45 J/g °C   (b) metal will be iron.

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 446.0 mg sample…

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Q: A chunk of platinum weighing 18.32 grams and originally at 98.99 °C is dropped into an insulated cup…

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Q: A 75.0 gram sample of a metal is heated until it is at 100.0℃. A calorimeter contains 100.0 grams of…

A: Given that : Mass of sample of the metal (ms)= 75.0 g Its temperature = 100°C Mass of water in the…

Q: In the laboratory a "coffee cup" calorimeter, or constant pressure calorimeter, is frequently used…

A: Given: Mass of water = 76.16 g Mass of Gold = 19.44 g Initial temperature of water (Ti) = 21.24 ℃…

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

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Q: The specific heat of AI is 0.901 J/g C. The specific heat of Iron is 0.449 J/g C. Which substance…

A: The quantity of energy (Q) required can be calculated as follows,

Q: A chemist placed a 1.195 g sample of fuel in a bomb calorimeter which was immersed into 2.00 L of…

A: The mass of the fuel sample is = 1.195 g The increase in the temperature of the water is = 20.1oC to…

Q: The combustion of propane (C3Hg) produces 2220 kJ of energy per mole of propane consumed. What mass…

A: For heat evolved during a reaction, we use the the following expression to calculate the…

Q: -A block of iron metal weighing 5.00 grams with a temperature of 75.0°C was immersed in a beaker…

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Q: How many milliliters of water at 23 °C with a density of 1.00 g/mL must be mixed with 180 mL (about…

A: The heat transferred by a substance is determined as the equation:

Q: How many joules of energy are required to heat 2.5 kg water from 18.5 to 55.0 Celsius?

A: To calculate the energy required to raise the temperature of any given substance, is calculated as-…

Q: In the laboratory a "coffee cup" calorimeter, or constant pressure calorimeter, is frequently used…

A: The relation between the amount of heat gained or lost (q) by a metal in a chemical process and the…

Q: A 625 g chunk of iron is removed from an oven and plunged into 525 g of water in an insulated…

A: The heat lost by iron = heat gained by water heat gained by water (q) = m x S x ΔT…

Q: You want to quickly set up a temporary water bath in your lab with a volume of 10.0 L and a…

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Q: (a) how can you use this observation to infer something about the specific heat of the materials in…

A: (a)

Q: How many milliliters of water at 3.16°C with a density of 1.00 g/mL must be mixed with 180 mL (about…

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Q: piece of unknown metal with a mass of 24.31 g is heated in boiling water to 90.51°C and then dropped…

A: The solution is provided in the next step: Given data: * Mass of metal is 24.31 g. * Mass of water…

Q: 1. The temperature of the cooling water as it leaves the hot engine of an automobile is 240 °F.…

A: The amount which is transferred by a given system can be calculated using the following mathematical…

Q: 5) A 120.0-g piece of metal at 60.0 °C is placed in 150 g of water at 19.0 °C contained in a…

A: Calculating the heat released or absorbed for the process:            ......(1) In a system, the…

Q: When a solid dissolves in water, heat may be evolved or absorbed. The heat of dissolution…

A:

Q: 3. Find the specific heat of a steel that has a mass of 1.57 kg absorbs net thermal energy of…

A: Answer:- We can determined specific heat of  steel by using q=mc∆T ...

Q: A 500-mL bottle of water and a 2-L bottle of water were both at room temperature. Then they were…

A: Heat gained or lost,  Q = mCPΔTFrom the above equation it is clear that the heat lost or gained…

Q: 21. The temperature of the cooling water as it leaves the hot engine of an automobile is 240 °F.…

A: The amount of heat transfer can be calculated by using the following formula: The relaion between…

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: In the laboratory a "coffee cup" calorimeter, or constant pressure calorimeter, is frequently used…

A: Specific heat capacity of water: 4.182 J/(g oC) Specific heat capacity of copper: 0.39 J/(g oC)…

Q: A 90.0 g piece of metal, initially at 98.6°C, is placed into 120.0 g of water initially at 24.3°C.…

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Q: How many milliliters of water at 31 °C with a density of 1.00 g/mL must be mixed with 95.0 mL (about…

A: Given: Initial temperature of water=31 degree celciusdensity =1.00g/mlvolume of coffee(m2)=95…

Q: 4. How many milliliters of water at 23 °C with a density of 1.00 g/mL must be mixed with 180 mL…

A: We know that specific heat is the amount of heat required to raise the temperature of 1 g of…

Q: A hot lump of 37.0 g of copper at an initial temperature of 74.3 °C is placed in 50.0 mL H2O…

A: Given;

Q: A student heats 84.17 mL of water to 95.27°C using a hot plate. The heated water is added to a…

A: Answer: Heat capacity of calorimeter is 304.5 J/°C.

Q: A metal object with mass of 20.9 g is heated to 97.0 °C and then transferred to an insulated…

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Q: How much heat is needed to raise the temperature of a 2.5 g piece of copper wire from 20. °C to 80.…

A: When the temperature rise of a 1 g of substance takes place by 1°C, some amount of heat is required…

Q: 2. An 88.5 gram piece of iron initially at 78.8°C is place in a beaker containing 244 grams of water…

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Q: How many milliliters of water at 23 °C with a density of 1.00 g/mL must be mixed with 180 mL (about…

A: The net heat absorbed by water will be equal to the heat released by coffee. Determination of heat…

Q: A gas is compressed and during this process the surroundings do 142 J of work on the gas. At the…

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Q: In the laboratory a "coffee cup" calorimeter, or constant pressure calorimeter, is frequently used…

A: Wt. of lead = MPb = 19.61 gInitial temperature of lead = TPb =97.01°CMass of water = M = 82.14…

Q: A metal object with a mass of 19g is heated to 96 degrees C and then transferred to a calorimeter…

A: The amount of heat absorbed (or released) by fixed amount of a substance to change its temperature…

Q: A 20.94 g sample of a metal is heated to 99.4°C in a hot water bath until thermal equilibrium is…

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Q: A 1.2 kgkg block of iron at 33 ∘C∘C is rapidly heated by a torch such that 12 kJkJ is transferred to…

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