1.What is the specific heat of a metal whose mass is 94.5 g if the temperature changes from 250° to 48°C. When is absorbs 850 J of heat?

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A: Energy can neither be created nor be destroyed. Thus, heat released from sample of sucrose is…

Q: 170 mL of 0.25 M HNO3 are mixed with 125 mL of 0.30 M KOH in a calorimeter. If the solutions have an…

A: Volume of HNO3 = 170 mL Molarity of HNO3 = 0.25 M Volume of KOH = 125 mL Molarity of KOH = 0.30 M…

Q: Suppose that the molar enthalpy of a reaction is -73.45 kJ/mol and 4.222 moles are reacted. How many…

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Q: A piece of metal with mass 20.00 g at room temperature [25.0oC] was heated up to 90.0oC. This metal…

A: a) The amount of heat water gained is given by Q as Q = mCΔT where m = mass of water = density X…

Q: What is the specific heat of a 66.51 g piece of an unknown metal that exhibits a 45.2°C temperature…

A: The relation between specific heat and heat energy is given by q = m * C * ΔT Where q = heat energy…

Q: A chemist measures the energy change AH during the following reaction: Cl₂(g) + H₂(g) → 2 HC1(g) ΔΗ…

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Q: A student is using calorimetry to determine the heat of solution for various salts. When the student…

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Q: Piece of metal with a mass of 48.342 g at an initial temp of 108 C is placed into 50 g of water…

A: Given, mass of metal =48.342 graminitial temperature of metal =108 °Cmass of water =50 graminitial…

Q: A calorimeter is used to measure the heat transferred between objects or in a chemical or physical…

A: ASSUMPTIONS IN CALORIMETRY : 1. no heat is transferred between the calorimeter and the outside…

Q: Which of the following statements is true?  a When heat is absorbed by a system, the reaction is…

A: Which of the following statements is true ?

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: MUST SHOW ALL WORK AND UNITS 1. The temperature of a 98.7 g piece of metal increases from 17.0 °C to…

A: Thermodynamics is the branch of chemistry which deals with the study of heat and other forms of…

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: An ideal gas in a cylinder fitted with a piston expands at constant temperature from a pressure of 9…

A: Given data : Temperature (T) = Constant Pressure (P) = 9 atm Volume(V) = 7.0 L to 17 LConsatnt…

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: You want to determine the heat capacity of an unknown metal sample in order to help identify it. To…

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Q: A gummy bear contains 5.24g of sucrose (342.3g/mol). When the gummy bear reacts with potassium…

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Q: What is the procedure for heating the metal sample to an exact but measured temperature?

A: Thermometer is a device that measures temperature or a temperature gradient. Thermocouples are also…

Q: We allow 73 g of oxygen to react with 85 g of ethane.  The reaction is shown below.  Since the heat…

A: Given - Balanced thermodynamical Reaction -  C2H6 (g) + 7/2 O2 (g) → 2 CO2 (g) + 3 H2O (g) ,…

Q: 8. How much heat is released when 266g of carbon dioxide are formed? 2C₂H +70, 4CO₂ + 6H₂O -> AH =…

A: 1.Combusion  of ethane is exothermic  reaction.  2 . when etane undergo combusion  give carbon…

Q: 13.0 and 54.0 °C, respectively, were mixed inside a cup calorimeter. If the temperature of water…

A: The heat capacity of the calorimeter is 58.1J/oC

Q: 6. A 128g piece of Iridium at 95 C is dropped into a 45.2g of water at 17.3 C. The final temp of the…

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Q: .  A 70.0-g piece of metal at 80.0 °C is placed in 100 g of water at 22.0 °C contained in a…

A: When a hot metal is placed in cold water, water gains heat energy and metal loses heat energy.

Q: 11. A piece of metal weighing 3.20 grams is heated to 100. °C. It is dropped into 50.0 grams of…

A: 11) Mass of the piece of metal = 3.20 grams Temperature=  100o CMass of water in calorimeter = 50…

Q: An ideal gas ina cylinder fitted with a piston expands at constant temperature from a pressure of 6…

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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: A chemist measures the energy change AH during the following reaction: Cl₂(g)+H₂(g) → 2 HCl(g) ΔΗ=…

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Q: A 440.0 g quantity of a certain metal is heated to 100.0 C. It is immediately placed into 258 g of…

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Q: In a calorimeter, the temperature of 60.0g of water increases from 23.3°C to 38.7°C when a 102.4°C…

A: We can use the following equation to calculate the specific heat of the nickel: q=mNi×CNi×ΔTNi where…

Q: What is the specific heat of a 72.01 g piece of an unknown metal that exhibits a 45.2°C temperature…

A: Given data is  mass of sample = 72.01 g Temperature = 45.2 oC Heat absorbed = 1870 J Formula used…

Q: An unknown mass of sand and water at 23 °C each absorb 1.95 × 10³ J of heat. The final temperature…

A: Given: Amount of heat absorbed = 1950 J Initial temperature of sand and water = 23 oC Final…

Q: 6. A 5.00 g piece of lead is heated to 290.0 °C and then placed in 50.0 g of water at 25.0 °C in a…

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Q: Ignition wires heat Thermometer A bomb calorimeter, or constant volume calorimeter, is a device…

A: Given: mass of 1,6-hexanediol = 0.520 g mass of water = 1090 g Initial temperature = 24.30 oC Final…

Q: An ideal gas in a cylinder fitted with a piston expands at constant temperature from a pressure of 5…

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Q: The heat change that accompanies the formation of 1.00 mol of carbon dioxide from its elements is…

A: we have to calculate the heat change for the formation of 0.650 mole of carbon dioxide

Q: Hydrogen sulfide is produced during the decomposition of organic matter. When 0.5380 mol H2S burns…

A: Given: H2S burns to produce SO2(g) and H2O(g) with heat release of -278.7 kJ

Q: reach

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

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: Calculate the change in energy for the following processes and identify if the process is…

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Q: When 500. mL of acetylene, CaHa, combusts in air at standard temperature and pressure, etermine how…

A: given-volume of acetylene =500mL =0.5Lto find- how many kilocalories of hear is generated.