QUESTION 14 An instant cold pack works by dissolving ammonium nitrate into water. These cold packs use an Exothermic Calorimeter O Endothermic ○ Enthalpic process to create the sensation of cold.

Q: What is the specific heat of a 65.51 g piece of an unknown metal that exhibits a 45.2°C temperature…

A: Weight of unknown metal= 65.5 1g Temperature (∆T)= 45.2°C Absorbed heat=1870 J

Q: Thermochemical equations are chemical equations that clearly show the relationship between mass of…

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Q: What is the specific heat of a 88.51 g piece of an unknown metal that exhibits a 45.2°C temperature…

A: The amount of heat required to increase the temperature of one kilo gram of a substance by one…

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 system gains 727 kJ of heat, resulting in a change in internal energy of the system equal to +151…

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Q: if you spill some of the hydrochloric acids on the table during the reaction of hydrochloric acid…

A: The heat of neutralization: The amount of heat released by the reaction of one mole of an acid and…

Q: A 7.93 g sample of an unknown salt (MM = 116.82 g/mol) is dissolved in 150.00 g water in a coffee…

A: A bomb calorimeter is a type of constant-volume calorimeter used in measuring the heat of combustion…

Q: Which is an example of an endothermic reaction

A: Endomthermic reaction is  a type of chemical reaction in which heat or thermal energy is absorbed by…

Q: What is the difference between an exothermic and an endothermic reaction?

A: An exothermic reaction is a chemical reaction  in which energy is released during the reaction.…

Q: How much heat is released by the formation of 18.0 g of CaCO,? Show the conversions required to…

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Q: When a 0.0157 g of a compound with a heat of combustion of -37.6 kJ/mole i burned in a calorimeter,…

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Q: Which of the following statements is TRUE about an exothermic process?

A: Exothermic process are the process in which heat is released by the system  to surrounding…

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: Using the molar heat of solution provided in the question above: determine how many g solid sodium…

A: The molar heat of the solution of sodium hydroxide is = -445.1 kJ/mol The volume of the water is =…

Q: 2. When you mix two solutions one containing compound A and the other containing compound B in a…

A: Because the final temperature for the mixing of compound A and compound B  is increase tgen it is a…

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: How is specific heat and heat of fusion seen in the coffee cup calorimeter experiment?

A: At coffee cup calorimeter, is an isolated system containing water.

Q: What is the specific heat of a 76.01 g piece of an unknown metal that exhibits a 45.2°C temperature…

A: Consider the given information is as follows; Mass of unknown metal = 76.01 g Temperature change…

Q: Macmillan L A student places a block of hot metal into a coffee cup calorimeter containing 152.6 g…

A: Given, mass of water = 152.6 g initial temp. = 21.8 °C final temp. = 37.0 °C We know, specific heat…

Q: An 850 g piece of copper metal is heated to 100∞C and dropped into a calorimeter containing 275 g of…

A: It is given that 850 g of copper metal was at a temperature of 100°C and 275 g of water was at a…

Q: 3. 2 PBr3(1)→2 P(s) + 3 Br₂(1) AH = +278 kJ a. If 1200 kJ of heat was absorbed by the rxn, how many…

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Q: Which of the following describes any heat flow that occurs in a well-sealed coffee cup calorimeter?…

A: In a well sealed coffee cup calorimeter, the energy gained or lost by the surroundings is equal to…

Q: In a coffee cup calorimeter experiment, 75.0 g of H2O and 50.0 mL of HCl are mixed. The jnitial…

A: Specific heat capacity is the amount of heat that is required to rise a temperature of 1 kg…

Q: Question 1: what do you mean by calorie? Explain the units of Cal, cal and Joule. + BIVAN LEEXEE…

A: As per bartleby guidelines I answered only first question so please don't mind thanks in advance.…

Q: Which of the following correctly states the purpose of the Calorimetry experiment? (Experiment 1) To…

A: Applying concept of calorimetry.

Q: Suppose that the molar enthalpy of a reaction is -40.95 kJ/mol and 3.144 moles are reacted. How many…

A: The energy released or absorbed per mole of solute dissolved in a solvent is known as molar heat of…

Q: Which phrase best describes exothermic reaction

A: For any chemical reaction to occur there is a need for energy.

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: 3. Specific heat is defined as the amount of energy needed to raise the temperature of 1 gram of a…

A: The definition of specific heat has to be given,

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: The temperature of a calorimeter goes from 15.6 degrees (c) to 31.4 degrees (c) 4 by capturing 488.8…

A: Given heat (q) = 488.8 kJ T1 = 15.6°C T2 = 31.4°C

Q: A 21.74 g sample of a substance is initially at 24.4 °C. After absorbing 2903 J of heat, the…

A: A numerical problem based on thermodynamics that is to be accomplished.

Q: A student constructs a coffee cup calorimeter and places 50.0 ml of water into it. After a brief…

A: IMPORTANT POINTS: Heat absorbed or lost (Q)has the formula:          Qabs/lost =m*C*△T      ;…

Q: A sample of carbon is burned in a calorimeter. if the calorimeter absorbs 94 J/K during the reaction…

A: Heat absorbed by the calorimeter = + 94 J.K-1 Heat absorbed by universe i.e. heat released by…

Q: 2

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

Q: 69- When 10.0 g sample of a compound is burned in a bomb calorimeter, the temperature of calorimeter…

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Q: Question 3 If you spill some of the hydrochloric acid on the table during the reaction of…

A: The calorimeter measures the heat of the reaction. When acid and base react with each other salt and…

Q: What is the specific heat of a 42.01 g piece of an unknown metal that exhibits a 45.2 °C temperature…

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Q: When 1.42 g of iron reacts with 1.80 g of chlorine, 3.22 g of iron(II) chloride (FeCl2, molar mass =…

A: Iron reacts with chlorine to form iron(II) chloride. When 3.22 g of  is formed, 6.8 kJ of heat is…