Using the data below (data gathered when 200g water is heated by unknown fuel), calculate the heat of combustion (ΔH) of the unknown fuel. Express the answer in kJ/g.  Initial Temperature of water 30°C Final Temperature of water 50°C Mass of water 200g Initial mass of unknown fuel 40.00g

Q: 3. When 0.050 mol of HCl is reactd with 0.050 mol of NaOH in 50.0 mL of water, the temperature of…

A: The heat of a system can be given as :

Q: 2. Acetylene, C2H2, is used in welding torches. It releases a lot of energy when burned in oxygen.…

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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: 1. How much energy, in Joules, would it take to heat up 80.0 g of water from 25 °C to 35 °C?

A: Note: Since you have posted multiple questions, we will provide the solution only to the first…

Q: If 63.50 g of an unknown metal at 97.6 °C initially produced a resulting temperature of 39.5 °C when…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: piece of metal with a mass of 20.8 g is heated to 99.5°C and then dropped into an ideal "no-leak"…

A: Given that:  Mass of metal(m) = 20.8g  Initial temperature of metal(T1) = 99.5°C Mass of water(m) =…

Q: Acetylene, C,H2, is used in welding torches. It releases a lot of energy when burned in oxygen. The…

A: Heat given = heat taken For water: Q1 = m . s . (T2-T1) For calorie meter: Q2 = C . (T2-T1)

Q: When 110. g of water at a temperature of 22.3 °C is mixed with 65.9 g of water at an unknown…

A: The final temperature is achieved at equilibrium. According to law of conservation of energy, the…

Q: A 44.3 g sample of water at 100.00 °C (specific heat of water = 4.184J/g.°C) was placed in an…

A:

Q: A 0.5736 g of unknown substance is burned in a constant – volume bomb calorimeter that has a heat…

A: Given: Mass of substance = 0.5736 g Heat capacity of calorimeter = 1.674 kJ/°C temperature increased…

Q: A calorimeter has a negligible heat capacity. It contains 52.3 g of water initially at 22.4 Celsius.…

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Q: A 50.0 g sample of liquid water at 25 °C is mixed with 44.7 g of water at 45.0 °C. What is the final…

A:

Q: A 65.4 g piece of metal that had been submerged in boiling water (100 °C) was quickly transferred…

A: Mass of water, m = 93.0 mL x 1gmL= 93.0 g  Specific heat of water, s = 4.184 J/g °C Change in…

Q: 50.0 grams of metal is heated to 100.0 C and then placed into a calorimeter containing 150 g of…

A: The specific heat capacity of the substance is the amount of heat energy required to raise the…

Q: Calculate the final temperature of the water after 2.47g of zinc at 60.1 C is added to 29.4g of…

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Q: A 65 g sample of Iron is heated to 80 °C and placed into a calorimeter containing 125 g of water at…

A: mass of iron = 65 gmass of water = 125 gspecific heat of water = 4.18 J/goCspecific heat of iron =…

Q: A 57-g sample of liquid water at 25.0 C is mixed with 21 g of water at 45.0°C. The final temperature…

A: We have to calculate the final temperature of water.

Q: A metal X has a a mass of 10.0g and it was heated up to 120.0°C, it was then submerged in water that…

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Q: When 108 g of water at a temperature of 23.1 °C is mixed with 66.1 g of water at an unknown…

A:

Q: 2. A piece of a metal with an unknown identity has a mass of 23.8 g. The sample is heated to 125°C…

A: Mass of metal = 23.8 g Temperature = 125 0C mass of water = 50 g Initial temperature = 24 0C Final…

Q: Q5 A metal object with a mass of 19 g is heated to 96 °C and then transferred to a calorimeter…

A: Given : mass of metal = 19 g = mM Initial temperature of the metal =  96°C = Tm mass of water = 75 g…

Q: A 50.0 g sample of an unknown substance, initially at 20.2 °C, was heated with 1.55 kJ of energy.…

A: Given information: Mass of water = 50.0 g Initial temperature (Ti) = 20.2 ͦC Final temperature (Tf)…

Q: A hot 101.5 g lump of an unknown substance initially at 157.8 °C is placed in 35.0 mL of water…

A: we have to identify the unknown substance

Q: A 500.0g sample of an unknown substance, initially at 20.2 degree celsius, was heated with 1.55kJ of…

A: For any provided specific substance which contains amount that is 1.0 gram, the heat (Q) required…

Q: Specific Heat Capacity A 24.5-g sample of an unknown metal is heated to 97.5°C and is placed in a…

A: Given that: Mass of metal = 24.5 g  Initial temperature of metal = 97.5°C Mass of water = 164 g…

Q: 1. In an experiment to determine the Specific Heat of Nickel, a 66.0 g sample of Nickel metal is…

A: Answer :-  The specific heat of Nickel determined by the experiment = 0.544 J/g.°C…

Q: A 22.0 g sample of pure iron at 85 °C is dropped into 73 g of water at 20. °C. What is the final…

A: Mass of pure iron sample = 22.0 g Initial temperature of pure iron sample = 85o C  Mass of water =…

Q: A gas is compressed from an initial volume of 5.65 L to a final volume of 1.23 L by an external…

A: Thermodynamic is the branch of chemistry that mainly deals with the heat transfer between system and…

Q: A small piece of metal is heated and placed in a foam cup calorimeter containing 50.0 mL of water at…

A: q= mc∆t Q= 522.2joule

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: A metal object with mass of 20.5 g is heated to and then transferred to an insulated container…

A: when we mix to object then it grow from high temperature too low temperature . so apply principle of…

Q: A 6.55 g sample of an unknown salt (MM = 116.82 g/mol) is dissolved in 150.00 g water in a coffee…

A: The total mass of a solution is the summation of the mass of solute and the mass of solvent. The…

Q: If 4210 J of heat is added to a calorimeter containing 254 g of water, the temperature of the water…

A:

Q: When a system gives off 100J of heat and the surroundings does 50J of work on the system, what is…

A: Hello. Since your question has multiple parts, we will solve first question for you. If you want…

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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Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 854.0 mg sample…

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Q: 4. A 505 gram piece of copper tubing is heated to 99.0 °C and placed in an insulated vessel…

A: Heat capacity: The amount of heat required to increase the temperature of a substance by one-degree…

Q: A sample of copper was heated to 120o C and then plunged into an insulated vessel containing 200.g…

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Q: A 45.90 g sample of pure copper is heated in a test tube to 99.40°C. The copper sample is then…

A: The amount of heat transferred in a thermodynamic system is calculated as follows,…

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…

A: