A sheet of gold weighing 10.0 g, with a specific heat of 0.120 J/(g °C) and an initial temperature of 18.0 °C is placed flat on a sheet of iron weighing 20.0 g, a specific heat of 0.44 J/(g °C) and an initial temperature of 55.6 °C. What is the final temperature of the combined metals? Assume that no heat is lost to the surroundings. Hint: The heat gained by the “cold”gold must be equal to the heat lost by the “hot” iron. I.e. qAu = -qF

Q: A calorimeter contained 81.0 g of water at 15.49°C. A 104-g sample of iron at 63.54°C was placed in…

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Q: A sample of metal weighing 9.323 g was heated to 99.15 °C. It was then placed in a calorimeter…

A: Given data, The mass of water = 35.5 g The mass of metal = 9.323 g The initial temperature of  H2O =…

Q: Consider samples of water and of ethanol that have equal masses.  Which statement correctly…

A: Heat capacity is amount of heat require to raise the temperature of substance by one degree Celsius.

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Q: A sample of toluene undergoes combustion in a bomb calorimeter that is insulated by 814 g of water…

A: Given: Mass of water = 814 g. Heat capacity of calorimeter = 1015 J/oC And the increase in the…

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

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Q: 1. A piece of titanium metal (mass 452.398 g) is placed in boiling water (100.00 °C). After 20…

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Q: A 49.12 g rock is heated to 97.2°C and placed into 72.91 g of water originally at 32.0 °C. If the…

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Q: A 100.7 g sample of beryllium at 138.5 °C is placed in a beaker that contains 210.4 g of water at…

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Q: A 53.33 gram sample of iron (with a heat capacity of 0.450 J/gºC) is heated to 100.0 ºC. It is then…

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Q: A 7.50-g sample of aluminum pellets (specific heat capacity = 0.89 J/°C-g) and a 12.00-g sample of…

A: The objective of the question is to determine the final temperature.It is given that,The mass of…

Q: Two 66-g ice cubes at 0 °C are dropped into 5.00 x 102 mL of tea to make iced tea. The tea was…

A: The mass of tea (m) is calculated as follows:

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: A piece of metal at 20°C that weighs 60.0 g is dropped into 200. g of water at 100°C. The specific…

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Q: The ΔH for the solution process when solid sodium hydroxide dissolves in water is 44.4 kJ/mol. When…

A: To solve this problem, first calculate the q for reaction by using formula q = n∆H. Using q value…

Q: A 125-g block of unknown substance with a temperature of 90 C is placed in a Styrofoam cup…

A: Given mass of water is 0.326 kg and that of the unknown block is 125 g, i.e 0.125 kg  Specific heat…

Q: a 2.00 g sample of a salt (MX(s)) is added to 20.0 g of water at 22.0 °C in a calorimeter. the…

A: a 2.00 g of a sample of a salt MX(s) is added to a 20.0 g of a water at 22.0oC.m is the total mass =…

Q: The ΔH for the solution process when solid sodium hydroxide dissolves in water is 44.4 kJ/mol. When…

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Q: What is the specific heat capacity of an unknown metal if 75.00 g of the metal absorbs 418.6J of…

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Q: A hot 102.4 g lump of an unknown substance initially at 168.9 °C is placed in 35.0 mL of water…

A: Given: Temperature of unknown metal decreases from 168.9 °C  to 55.7 °C  Temperature of water…

Q: A 5.00-g sample of aluminum pellets (specific heat capacity= 0.89 J/°C-g) and a 15.00-g sample of…

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Q: A 148.9-g sample of a metal at 74.0°C is added to 148.9 g H20 at 14.4°C. The temperature of the…

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Q: Part A Two substances, A and B, initially at different temperatures, come into contact and reach…

A: Mass of substance A = 6.13 g Initial temperature of substance A = 20.1oC Mass of substance B = 25.8…

Q: 17.10 grams of an unknown substance undergoes a temperature increase of 14.5 °C after absorbing 525…

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Q: Part D A1.6 kg block of iron at 28 °C is rapidly heated by a torch such that 18 kJ is transferred to…

A: Given that,  Weight of Iron block m = 1.6 Kg Initial temperature of iron block Ti, i = 28°C Final…

Q: A piece of metal (108 g) was heated up to 86 °C, then it was transferred into 194 g of water. The…

A: Given that : Mass of metal (mm) = 108 g Its temperature = 86°C Mass of water (mw) = 194 g Its…

Q: The specific heat of a certain type of metal is 0.128 J/(g.°C). What is the final temperature if 305…

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Q: A calorimeter contained 83.0 g of water at 15.43°C. A 165-g sample of iron at 64.80°C was placed in…

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Q: A 2.62E1 g sample of aluminum at 1.008E2 °C is added to 1.002E2 g of water at 2.22E1 °C in a…

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Q: A 1.0 g sample of octane is burned in a bomb calorimeter that contains 1200 mL of water with an…

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Q: A piece of iron (mass = 25.0 g) at 398 K is placed in a styrofoam coffee cup containing 25.0 mL of…

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Q: A 60.86-g stainless steel ball bearing at 115.81°C is placed in a constant-pressure calorimeter…

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Q: A hot 111.6 g lump of an unknown substance initially at Substance Specific heat (J/(g.°C)) 150.0 °C…

A: By help of Following formula we can calculate the specific heat of the unknown Substance -   M1 C1…

Q: 1 Calculate the amount of heat needed to raise the temperature of 50.0 g of iron from 21.0°C to…

A: As per bartleyby guidelines i answered only first question so please don't mind and post other…

Q: To a sample of water at 22.6 °C in a constant- pressure calorimeter of negligible heat capacity is…

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Q: You see a gold ring in a flea market that you’d like to have, and the price seems right, so you buy…

A: Given data, Mass of ring (m) = 6 g  Initial temperature (Ti) = 25 °C Final temperature (Tf) = 75 °C…

Q: ferred to a coffee cup calorimeter containing lly at 20.63 ºC. If the final temperature of the

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Q: A 991 g copper pan is removed from the stove at a temperature of 150 °C. It is then stacked on top…

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Q: A 237-g piece of iron, initially at 100.0 °C, is dropped into 244 g of water at 10.0 °C. When the…

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Q: A 100.0 g sample of an unknown metal is heated to 95.00°C. This hot metal is then placed into a foam…

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