when 20 grams of a salt is dissolved in 95 grams of water the temperature of the solution decreases from 40 c to 30 c. how much heat is evolved. the specific heat of the solution is 1.1 cal/g

Q: Zinc has a specific heat of 0.387 J/g · ºC. When a 3.20-g piece of zinc absorbs 6.81 J of heat, what…

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Q: What is the specific heat of a metal whose mass is 94.5 g if the temperature changes from 250°C to…

A: It is given that the mass of the metal is 94.5 g and is undergoing a temperature change from 250°C…

Q: A sample of aluminum absorbs 11.2 J of heat and its temperature increased from 23.2°C to 57.5°C.…

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Q: A quantity of 505 J of heat are added to 11.3 g of water at 28.3 °C. What is the final temperature…

A: According to the answering guidelines, I'm posting the solution for the first question. Kindly post…

Q: A 100 g piece of metal is heated to 500°C before being submerged in 2 liters of water at 25°C. If…

A: Given: mass of metal = 100 g Initial temperature of metal = 500 oC Volume of water = 2 L = 2000 mL…

Q: 2. A solution is formed by combining 10 mL of solution A and 40 mL of solution B. Find out the heat…

A: We know that  Heat change of the reaction is  Qreaction = - Q calorimeter  = - m × C × ∆T And, the…

Q: What is the specific heat of an object that goes from 25.2 Celsius to 31.4 Celsius Celsius when it…

A: Given: Amount of heat absorbed = 250 cal. Initial temperature = 25.2 oC Final temperature = 31.4 oC…

Q: 24.0 g of metal at 78.3°C is cooled to 12.4°C and produces 194 J of heat. What is the specific heat…

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Q: 4.33g sample of an unknown salt (MM=116.83g/mol) is dissolved in 150.00g water coffee cup…

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Q: In a calorimeter, you mix together 31.0 grams of a solution of acid and 30.0 grams of a solution of…

A: Total Mass of the solution = Mass of Acid + Mass of Base Total Mass = 31.0 + 30.0 g  = 61.0 g…

Q: The table lists the specific heat values of several substances. Substance Specific heat (cal/g.°C)…

A: Heat energy is given by q = m * C * ΔT where q = heat energy m = mass of the substance C = specific…

Q: 175 g of water was heated from 15°C to 88°C.  How many kilocalories (kcal) of heat were absorbed by…

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Q: Can you help me, im confused on how to do this So can you help me understand it by showing how to…

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Q: A solution formed by combining 10 mL of solution A and 40 mL of solution B. Find out the heat of…

A: Specific heat ( s) :- The amount of heat required to rise the temperature of 1 g of a substance…

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Q: (a) Define specific heat. Specific heat is defined as the quantity of heat required to raise the…

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Q: when 20 grams of salt is dissolved in 95 grams of water the temperature of the solution decreases…

A:

Q: A 217.3 g water bath is heated to 99.7 ˚C from 22.5 ˚C.  How much heat was absorbed by the water, in…

A: Given, mass of water =217.3 g initial temperature, Ti=22.5 °C final temperature, Tf=99.7°C specific…

Q: A piece of unknown metal weighs 348 g. When the metal piece absorbs 6.64 kJ of heat, its temperature…

A: Given: Mass, m = 348 g Heat, q = 6.64 kJ Tf = 43.6oC Ti = 22.4oC

Q: If 100 mL of water instead of 50 mL of water was used, how would the final temperature change? How…

A: Specific heat change is the amount of heat required to increase the temperature of 1 gram of…

Q: A 9.1 g piece of aluminum (specific heat= 0.22 cal/(g* Celsius) received 10.0 cal of heat. What was…

A: The change in temperature of an object on receiving certain amount of heat (q) is expressed as:

Q: Energy in the amount of 460 J is added to a 25.0 g sample of water at a temperature of 15.0 °C. What…

A: we can use the formula:-Q=m·s·∆TQ=Heat addedm=masss=specific heat∆T=(Tf-Ti)=(Final…

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: Once CS2 (carbon disulfide) is formed from its elements, heat is then absorbed.  How much heat would…

A: Given that When 1 mole of CS2 is formed from its constituents elements, heat energy equal to 89.3…

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Q: 8. A 7.0-gram metal sample absorbed 211 J of heat as it was heated from 28°C to 85°C. W containing…

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Q: If 2500kj of heat are added to 50.0g of water at 25.00 C what would be the final temperature of the…

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Q: Determine the specific heat capacity of 250.0g of an unknown metal. When the metal absorbs 18.1 kJ…

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Q: Given that 158.05 g of solution increased in temperature by 4.82 "C. how much heat was gained by the…

A: Given that: Mass of solution=158.05grams Change in temperature=4.82°C Specific heat of…

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Q: 4. 448 Joules of heat are required to raise the temperature of a 10 gram sample of metal from 10…

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Q: Because water has such a high specific heat capacity, it heats and cools more slowly than land. How…

A: Given that,

Q: In the laboratory a student finds that it takes 37.4 calories to increase the temperature of 14.3…

A: The amount of heat requires to increase the temperature of one gram of compound by 1° is called the…

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.…

A: We can use the formula : q=ms∆t We are Given: ∆T for water = 34.00-24.30 = 9.70 oC ∆T for metal =…

Q: When 20 grams of a salt is dissolved in 95 grams of water, the temperature of the solution decreases…

A: Given, mass = 20 grams + 95 gram = 115 gram ∆T=T2 - T1      = 30-40       =-10 oC c = 1.1cal/g oC ∆Q…

Q: What is the specific heat of a metal whose mass is 94.5 g if the temperature  changes from 250°C to…

A: The specific heat of a substance is defined as the amount of heat required to increase the…

Q: 8. If 335 g of water 65.5 °C loses 9750 J of heat, what is the final temperature of the water?…

A: We have mass of water as 335g, initial temperature as 65.5°C, looses 9750J of heat, specific heat of…

Q: 2. A solution is formed by combining 10 mL of solution A and 40 mL of solution B. Find out the heat…

A: 2). given : 10 ml solution of A  40 ml solution of B

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.…

A: The heat lost by the hot metal equal to the heat gained by the water. Both processes are temperature…

Q: How much heat is required to raise the temperature of 15 x 10g of water from 45F to 130F? The…

A: Answer: This question is based on the following formula: Q=mS∆There:Q=heat exchangedm=mass of the…

Q: classify each of  the following as exothermic or endothermic and give the change in heat, C3H8(g)…

A: Exothermic Reaction: Reaction in which heat is released. ΔH is negative for exothermic reactions.…

Q: How much heat must be absorbed by 375 grams of water to raise its temperature by 25° C? Specific…

A: Given, mass = 375 g  Specific heat, c = 4.184 J/g°C  Heat = ?

Q: The temperature of 34.7 g H2O changes from 27 °C to 53 °C. What is the heat associated with this…

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Q: A 92.9-g piece of a metal is heated to 178.0 ºC, and then cooled to 29.7 °C by removing 14052.6 J of…

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Q: when 20 grams of salt is dissolved in 95 grams of water, the temperature of the solution decreases…

A: When the solute is dissolved in the solution and the amount of heat released is known as the heat of…

Q: A sample of water with a mass of 726.2 g undergoes a temperature change from 58.3°C to 40.50°C. What…

A: The heat change of the temperature change process is given by  Q = mCΔT  where Q = heat change  m =…