Compute for the Q (in kiloJoules) needed to change the temperature of 2.25 m3 of unknown substance (density=8.3 g/mL; specific heat=0.95 cal/g•°C) from 22.6°C to 97.4°C.

Q: A coffee-cup calorimeter contains 70 mL of water with an initial temperature of 24.9°C. An unknown…

A: Given that, For water, Volume of water = 70 ml Density of water = 1 g ml-1 Mass of water = 70ml × 1…

Q: A coffee-cup calorimeter contains 20 mL of water with an initial temperature of 24.8°C. An unknown…

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Q: THERMODYNAMICS: The combustion of 1.00 mol of glucose (C6H1206) liberates 2820 kJ of heat. If 1.14 g…

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Q: THERMODYNAMICS: The combustion of 1.00 mol of glucose (C6H1206) liberates 2820 kJ of heat. If 1.67 g…

A: Given: Heat of combustion of glucose = 2820 KJ/mol. Mass of glucose burned = 1.67 g. Initial…

Q: How many calories of heat (energy) would it take to heat 25.0 g of water from 35.0 °C to 45.0 °C?…

A: Given, Mass of water(m)= 25g Final temperature = 45°C Initial temperature = 35°C Temperature…

Q: A 10-g solid was heated in a test tube to 100°C in boiling water and added to the coffee-cup…

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

Q: 9. If a 85.0°C iron rod that weighs 1.20 kg was placed in 15.2 L of water at 20.0°C, what is the…

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Q: A metal is thought to be silver or iron. When 8.0 g of the metalabsorbs 23.50 J, its temperature…

A: (a) q = ms∆T 23.50 = 8.0 x s x ( 6.5 0 s = 0.45 J/g °C   (b) metal will be iron.

Q: An unknown metal is suspected to be gold. When 2.8 JJ of heat are added to 5.6 gg of the metal, its…

A: Recall the following relation from law of calorimetry as follows        Amount of heat…

Q: A 10-g solid was heated in a test tube to 100°C in boiling water and added to the coffee-cup…

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Q: The specific heat of a certain type of cooking oil is 1.75 J/(g-°C). How much heat energy is needed…

A: Initial temperature = 23°C Final temperature = 191°C Change in temperature= (191-23)°C=168°C…

Q: THERMODYNAMICS: The combustion of 1.00 mol of glucose (C6H1206) liberates 2820 kJ of heat. If 1.38 g…

A: Given:  Heat released on combustion of 1 mol glucose = 2820 KJ  Mass of glucose = 1.38 gm  Mass of…

Q: A block of copper is heated to 357 °C and then is dropped into a coffee cup calorimeter containing…

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Q: THERMODYNAMICS: The combustion of 1.00 mol of glucose (C3H12O8) liberates 2820 kJ of heat. If 1.75 g…

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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: THERMODYNAMICS: The combustion of 1.00 mol of glucose (C6H1206) liberates 2820 kj of heat. If 1.49 g…

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Q: A bomb calorimeter, or a constant volume calorimeter, is a device often used to determine the heat…

A: The heat absorbed by calorimeter (qc) is calculated as follows:

Q: -A block of iron metal weighing 5.00 grams with a temperature of 75.0°C was immersed in a beaker…

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Q: I. Answer the following. 1. In what direction does heat flow between two objects? 2. How do…

A: Heat of reaction or enthalpy change ∆Hrxn∘ is defined as heat released and absorbed during a…

Q: A block of copper is heated to 392 °C and then is dropped into a coffee cup calorimeter containing…

A: Heat gained by water = Heat lost by block of copper Therefore,  qwater = -qcopper   Heat gained by…

Q: In the laboratory a "coffee cup" calorimeter, or constant pressure calorimeter, is frequently used…

A: The relation between the amount of heat gained or lost (q) by a metal in a chemical process and 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: Mass of metal, Mm = 90 g Specific heat of metal = Cm Initial temperature of metal = 98.6 ◦C Final…

Q: piece of unknown metal with a mass of 24.31 g is heated in boiling water to 90.51°C and then dropped…

A: The solution is provided in the next step: Given data: * Mass of metal is 24.31 g. * Mass of water…

Q: 1. How many KJ are used by a 154lb adult while sleeping for one hour? 2. In the specific heat…

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Q: A coffee-cup calorimeter contains 70 mL of water with an initial temperature of 24.9°C. An unknown…

A: The heat absorbed (q) by the water can be obtained by the multiplication of mass (m) of water with…

Q: A bomb calorimeter, or a constant volume calorimeter, is a device often used to determine the heat…

A:

Q: In the laboratory a "ceffee cup" calorimeter, or constant pressure calorimeter, is frequently used…

A: Given that : Mass of zinc (mZn)= 69.11 gInitial temperature of zinc = 98.40°CMass of water (mwater)=…

Q: A 39 g aluminum spoon (specific heat 0.904 J/g-°C) at 25°C is placed in 178 mL (177 g) of coffee at…

A: A definite quantity of heat is used up in raising temperature of substances. For substance that…

Q: coffee-cup calorimeter contains 60 mL of water with an initial temperature of 24.9°C. An unknown…

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Q: Consider the reaction C12H22011 (s) + 12 O2 (g) → 12 CO2 (g) + 11 H20 (1) in which 10.3 g of…

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Q: THERMODYNAMICS: The combustion of 1.00 mol of glucose (C6H1206) liberates 2820 kJ of heat. If 1.77 g…

A: We will first calculate heat released by given amount of glucose, then calculate heat capacity.

Q: 25.0 mL of 1.00M HCI at 23.5°C react with 25.0 mL 1.00 M NaOH in a styrofoam calorimeter whose…

A: The energy of a system is always conserved. The amount of heat released or absorbed by the reaction…

Q: A student heats 61.27 grams of silver to 97.71 °C and then drops it into a cup containing 82.16…

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Q: Calculate the heat capacity of a brick if 100. g sample absorbs 2439 J of heat, and it’s temperature…

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Q: the change in enthalpy for ammonium nitrate dissolving in water is 25.7 kJ/mol. determine the amount…

A: We have to calculate the mass of Ammonium nitrate dissolved.

Q: A bomb calorimeter, or a constant volume calorimeter, is a device often used to determine the heat…

A:

Q: The heat of combustion of octane, C8H18 , can be measured in a way similar to the method you used to…

A: Heat capacity is given by,

Q: In addition to calculating specific heat capacities, some calorimeters can be used to determine how…

A: A) The number of Joules in 1 calorie = 4.184 J.

Q: an 33.777g piece of metal is heated in a hot water bath at 98.5°C and then cransferred to a…

A: Given, mass of metal, m =33.777 g temperature of hot water bath T1 =98.5°C Volume of water in coffee…

Q: A 1.37 g sample of butane, C4H10(g), was burned in a bomb calorimeter in the presence of excess…

A: Mass of butane = 1.37 g Initial temperature = 23.6°C Final temperature = 35.6°C Heat capacity of…

Q: An 80.0 g sample of metal, initially at 96.0°C, is placed into 150. g of water initially at 26.0°C…

A: Interpretation: An 80.0 g sample of metal, initially at 96.0°C, is placed into 150.0 g of water…

Q: A9.45g piece of an unknown metal at 470.8 °C is placed into a coffee cup calorimeter containing…

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

Q: What is the final temperature (in degrees Celsius) when 1940 J of energy are put into a 250…

A: We have to predict the final temperature.

Q: A 150.0 g block of lead at 100.0 °C is placed in a calorimeter with 50.0 g of water at 22.0 °C. The…

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Q: How many milliliters of water at 23 °C with a density of 1.00 g/mL must be mixed with 180 mL (about…

A: The net heat absorbed by water will be equal to the heat released by coffee. Determination of heat…

Q: Using the data provided, which substance would show the greatest temperature change when 10.0 grams…

A: The question is based on the concept of specific heat capacity. it is defined as the amount of heat…

Q: In the laboratory a student finds that it takes 62.2 joules to increase the temperature of 10.3…

A: Given data,Heat=62.2JMass of Fe=10.3gInitial temperature=23.7oCFinal temperature=38.4oC

Q: THERMODYNAMICS: The combustion of 1.00 mol of glucose (C6H1206) liberates 2820 kJ of heat. If 1.14 g…

A: We will first calculate moles of glucose, then calculate hear capacity of calorimeter.

Q: How many milliliters of water at 23 °C with a density of 1.00 g/mL must be mixed with 180 mL (about…

A: Use calorimetry principle to get answer Heat flow from high temperature to low temperature. Heat=…

Q: A 44.0 g sample of an unknown metal at 99.0 °C was placed into a coffee-cup calorimeter containing…

A: Given: Mass of metal, mm=44.0 g Temperature change, ∆T=(99.0-27.9)°C=71.1 °C Specific heat, Cm=?…