Determine the mass of iron heated from 12.5 °C. to 85.0 °C . Heat of reaction is 1245 J. The specific heat of iron is 0.045 J/g °C.

Q: 1. The temperature of a 15.0 g sample of a metal (specific heat 0.040 J/g.°C) is raised by 18.2°C.…

A: Using relation:  Q = m×s×∆T     -----(1) where Q is amount of heat absorbed m is mass of substance s…

Q: A metallic radiator is made of 26.0 kg of iron, the specific heat of iron is 0.449 J/g°C. How much…

A: Given: Mass of Iron =26.0 kg =26000 g Temperature change, ∆T=(55.0-25.0)°C=30 °C The heat needed q…

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: 3. When 2.0 g of NaOH is the heat of dissolution are dissolved in 49.0 g of water, the temperature…

A: 3.) First we need to calculate the heat using the formula Q = mC∆T  Then we need to calculate moles…

Q: A sample of aluminum metal absorbs 9.86 J of heat, upon which the temperature of the sample…

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Q: 4. How much heat is absorbed by a 15.5 g piece of gold as it is heated from 4.5 °C to 177.4°C?

A: Given data contains, Mass of gold sample is 15.5g. Specific heat capacity of gold is 0.129 J/g°C.…

Q: A  55.2 g piece of metal has a temperature of 90.4 °C before being placed into 102.5 g of water at…

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Q: Copper metal has a specific heat of 0.385 J/g-°C. Calculate the amount of heat required to raise the…

A: Calculation of amount of heat: The given information is as follows: The specific heat of metal =…

Q: 5. 5. If 20,000 J of energy are used to heat mercury by 4.00 °C, what is the mass of mercury? 6.…

A: Heat released or absorbed by a substance is calculated as: q = m.C.∆T where m is the mass of the…

Q: An unknown metal with a specific heat of 0.385j has an initial temperature of 65.4 C. the metal is…

A: The heat absorbed or released by the Substance related with each other by following formula -   M1…

Q: 1. How much heat must be added to a 38-g sample of aluminum to increase its temperature by 250.0°C?…

A: Dear student since you have posted multiple questions, As per BARTLEBY QnA guidelines we are allowed…

Q: Determine if the following reactions/processes are endothermic or exothermic. A+B → AB ΔΗ AH-75 kJ A…

A: Exothermic reactions release energy into their surroundings, while endothermic reactions absorb…

Q: A substance weighing 14.2 g absorbs 65.03 J of heat, resulting in a temperature increase of 10.2 °C.…

A: The objective of the question is to identify the substance based on its specific heat capacity. The…

Q: sample of sodium hydroxide dissolved in water, releasing heat to the surrounding water, and causing…

A: According to first law of thermodynmics, the total energy of a system remains constant.if one…

Q: The table lists the specific heat values of several substances. An unknown substance has a mass of…

A: Mass of substance = m = 16.3 g Temperature increased by Means change in temperature = ∆T = 12.5°c…

Q: 2. A system performs 3.63 kJ of work and gives off 8.98 kJ of heat. What is the change in energy of…

A: To solve this problem we will use First Law of Thermodynamics  .  According to this law  ∆E = q + w…

Q: A 225-g sample of aluminum was heated to 125.5 oC, then placed into 500.0 g water at 22.5 oC. (The…

A: Here we have:           mass of aluminiun, mAl = 225 g             mass of water , mH2O = 500.0 g…

Q: If 115 cal are added to 49.2 g of solid iron, what is the change in temperature of the iron? The…

A: The objective of this question is to calculate the change in temperature (ΔT) of the iron when a…

Q: Calculate the increase in the temperature of Aluminum when 12.76 kcals of heat are supplied to a 2.0…

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Q: Indicate whether the statement is true or false.____ 1. Enthalpy changes for an exothermic reaction…

A: Step 1: Enthalpy changes for an exothermic reaction are given a negative sign. The given statement…

Q: How many kilojoules of heat will raise the temperature of 1.50 kg of water from 22.00°C to 25.00°C?

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Q: 3. State whether the following processes are exothermic or endothermic. a. Ice melting b.…

A: 13.Exothermic process is a process in which heat energy is produced and endothermic process is a…

Q: Examples 1) A calorimeter containing 200.0 g of water at an initial temperature of 25.0 °C was used…

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Q: Knowing that liquid water has a much higher specific heat capacity than the metal lead, which sample…

A: Q = m . s . ∆T Where, Q = heat absorbed; m = mass of substance; s specific heat capacity and ∆T =…

Q: Determine the final temperature of a 377 g sample of iron when 2.64 kJ of heat is added. The initial…

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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: You have 10.3 g of a colorless liquid. Adding 155.1 J of heat increases the temperature of the…

A: Given that: Mass of liquid(m) = 10.3g  Heat(q) = 155.1J T1 = 25.0°C T2 = 28.6°C Change in…

Q: 12. Calculate the amount of coke,(carbon) needed to be burned in order to heat 500.kg of water from…

A: One calorie or one kJ is needed to raise the temperature of one kg of water by one degree celsius.…

Q: A piece of metal (mass = 43.4 g) at 135 ̊C is placed in a Styrofoam coffee cup containing 41.2 g of…

A: Mass of the metal (mmetal​) = 43.4 gInitial temperature of the metal (Tinitial, metal​) = 135 °CMass…

Q: Calculate the amount of heat released from combustion of 1 g of wood

A: Please find your solution below : Note : This question requires the values of heat capacity and…

Q: 2

A: The heat in a calorimeter, qcal is given as : The heat change of a reaction in a calorimeter, qrxn…

Q: How much heat energy is required to raise the temperature of 0.366 kg of copper from 23.0 C to 60 C?…

A: The mass of copper is = 0.366 kg The raise in temperature is = 60-23 = 37oC The heat capacity of…

Q: A liquid has a specific heat capacity of 4.25 J/g ̊C.  A 20.0 g sample of the liquid absorbs 324 J…

A: Specific heat capacity of liquid , c = 4.25 5 J/g ̊C Mass of sample , M = 20.0 g  Heat absorbed Q =…

Q: The temperature of an object increases by 44.1 °C when it absorbs 3761 J of heat. The mass of the…

A: Q= mcΔT ……………………1 Where Q represents heat M represents mass of the system C denotes heat capacity ΔT…

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A: Heat(Q) = mass • specific heat capacity • ∆T  Mass = 91.2g  Specific heat capacity of water =…

Q: Calculate the amount of coke, (carbon) needed to be burned in order to heat 500.kg of water from 20…

A: The amount of energy for a particular amount of matter present at specific temperature with specific…

Q: 4.) The specific heat of aluminum is 0.900 J/g.°C. a) Calculate the energy required to raise the…

A: Heat required to raise the temperature of the substance can be determined by using the formula :…

Q: 18. An unknown volume of water at 18.2°C is added to 24.4 mL of water at 35.0°C. If the final…

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