A sample of lead is heated and placed in a 151.0 g container of water at 22.0 oC.  The final temperature of the lead and water is 44.0 oC.  Assuming no heat loss, what amount of heat released from the lead sample?

Q: What is specific heat ? O The study of heat changes that accompany chemical reactions and phase…

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Q: mestion 41 of 41 Suppose a boil water notice is sent out advising all residents in the area to boil…

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Q: heat

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Q: A 155.0 g piece of copper at 146 oC is dropped into 250.0 g of water at 15.3 oC. (The specific heat…

A: The heat lost by copper will be equal to the heat gained by water as there is no loss of heat to the…

Q: A 500-g piece of metal (a steel) is dropped into 775 mL of water at 23.5 °C. The final temperature…

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Q: solution is made by mixing 260.0 mL of ethanol initially at 12.5 °C with 260.0 mL of water initially…

A: According to Law of calorimetry,amount of heat released by the substance having higher temperature…

Q: A 35.0-g sample of water at 25°C is mixed with 45.0 g of water at 88°C. Calculate the final…

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Q: 3. Is solid → liquid → gas an endothermic or exothermic process? Describe how this energy change…

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Q: Suppose a boil water notice is sent out advising all residents in the area to boil their water…

A: Given: Volume of water to be boiled = 17.0 L = 17000 mL…

Q: If a 125 g sample of iron is heated to 250.0oC and then placed in 500.0 g of water at 25.0 oC in an…

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Q: When hydrogen and oxygen are burned to produce water, heat is produced at the rate of 58 kcal/mole…

A: Given, 1 mol H2O = 6.022 ×1023 molecules  Heat produced = 58 Kcal/mol

Q: A 35.0-g sample of water at 25°C is mixed with 45.0 g of water at 88°C. Calculate the final…

A: Calculate for the final temperature of the mixture see step-2 for further Calculation and concept…

Q: When hydrogen and oxygen are burned to produce water, heat is produced at the rate of 58 kcal/mole…

A: Given: Heat produced per mole of water = 58 Kcal/mol of water. And 1 mole of water contains = 6.02 ×…

Q: A foundry worker places a 5.77 kg sheet of cobalt at a temperature of 15°C on top of a 16.8 kg sheet…

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Q: Calculate the moles of lithium from its molar mass and the heat produced when it reacts with water.…

A: In this scenario, we are presented with a multi-step problem that involves the reaction of lithium…

Q: How much would the temperature of a 61.9 gram sample of grain alcohol increase if it absorbs 305…

A: Given the mass of alcohol is 6.19 grams heat energy Q=305 Joules Suppose the alcohol is ethanol ( As…

Q: Why water has a very high specific heat capacity in comparison to other metals ? Please give a few…

A: Heat capacity:  Heat capacity : This property of a substance is defined the maximum heat that the…

Q: How much heat (in Joules) is gained by 447 grams of water that is warmed from 25.0 J °C to 54.0°C?…

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

Q: Which of the following will affect the amount of energy it takes to change the temperature of a…

A: Whenever a substance is heated its temperature is increased. The process of heating requires heat.

Q: Suppose a boil water notice is sent out advising all residents in the area to boil their water…

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Q: A solution is made by mixing 197.3 g of ethanol initially at 10.5°C with 250.0 g of water initially…

A: We know that, according to the law of conservation of heat energy, energy gained or loss by the…

Q: A piece of metal with a specific heat of 1.09 J/gºC is heated to 108ºC and then placed in 139.785 g…

A: Given that: Mass of water = 139.785 gInitial temperature of water = 1.7oCFinal temperate of water…

Q: If 2.500KJ of heat are added to 50.0g of water at 25.00 °C, what would be the final temperature of…

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Q: The specific heat of mercury is 0.140 J/g°C. Calculate the heat necessary to raise the temperature…

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Q: When a 43.0 g sample of metal at 100.0 oC is added to 38.0 g of water at 23.72 oC, the final…

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Q: Which change happens when a substance melts? O Heat energy overcomes the forces of attraction…

A: Here we have to choose correct option about melting of substances-

Q: Determine the final temperature of a gold nugget (mass = 376 g) that starts at 288 K and loses 4.85…

A: Specific Heat Capacity of gold is =0.128 J/gc Initial temperature = T1 = 288K…

Q: Suppose a boil water notice is sent out advising all residents in the area to boil their water…

A: Given: The volume of water, (VH2O) = 12 L = 12000 mL. The initial temperature of the water, (T1) =…

Q: a 25.31 g sample of a substance is initially at 23.9 °c. after absorbing 2317 j of heat, the…

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Q: A solution is made by mixing 260.0 mL of ethanol initially at 15.5 °C with 260.0 mL of water…

A: Given volume ethanol =260.0 mLinitial temperature of ethanol =15.5 °Cdensity of ethanol =0.789…

Q: The reaction shown below represents the formation reaction of water. 2 H2 (g)   +   O2 (g)   →   2…

A: The solution is as follows :

Q: Suppose a boil water notice is sent out advising all residents in the area to boil their water…

A: Given: Volume of water      = 14.0 L Density of water      = 1.00 g/mL Density of methane = 0.668…

Q: Thirty grams of silicon at 80.0°C is added to 70.0mL of water at 20.0°C. Calculate the final…

A: Given: The mass of silicon = 30 g The initial temperature of silicon = 80.0 °C The volume of water =…

Q: A foundry worker places a 5.76 kg sheet of nickel at a temperature of 18°C on top of a 16.6 kg sheet…

A: The specific heat capacity for a given chemical substance or a solution refers to the amount of the…

Q: A total of 665.19 Joules of heat are observed as 49.79g of lead is heated from 12.0°C to 78.12°C.…

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Q: A 155.0 g piece of copper at 181 oC is dropped into 250.0 g of water at 17.9 oC. (The specific heat…

A: Assuming the final temperature of mixture is T and specific heat of water = 4.184 J/goC Since the…

Q: 4. The specific heat of water is quite high at 4.184 J/gC. Explain how life on this planet would be…

A: The amount of heat required to increase the temperature of the 1 g of the substance by 1 degree is…

Q: Calculate the amount of heat energy (in joules) needed to raise the temperature of 48.0 g of water…

A: q = m × SH × ∆T  q = heat energy  m = mass of water  SH = specific heat of water  ∆T = change in…

Q: A 234.66 gram aqueous solution has a specific heat of 4.186 J/gºC. The solution is at 28.1 °C. What…

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Q: 27-gram piece of metal at 144  oC is dropped into 86 grams of water at 29 oC.  The water temperature…

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