A candy bar has a total mass of 75.0 grams. In a calorimetry experiment, a 1.25-g sample of this candy bar was burned in a calorimeter surrounded by 1000 g of water. The temperature of the water in contact with the burning candy bar was measured and found to increase from an initial temperature of 21.2°C to a final temperature of 24.3°C. a. Calculate the amount of heat in calories released when the 1.25-g sample burned. (show the work you did)

Q: A 8.17 g sample of an unknown salt (MM = 116.82 g/mol) is dissolved in 150.00 g water in a coffee…

A:

Q: 39.0 g sample of a metal is heated to 63.0 °C and then dropped into 125.0 g of water in a…

A: Heat absorbed by the substance = m x Cs x ∆T  m = mass of substance Cs = specific heat capacity of…

Q: A single Doritos chip was oxidized by potassium chlorate. Suppose that a single chip weighing 2.9 g…

A:

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Q: A 4.81 g sample of an unknown salt (MM = 116.82 g/mol) is dissolved in 150.00 g water in a coffee…

A: Specific heat: It is defined as the amount of heat required to raise the temperature of the…

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A:

Q: A 1.96 g sample of titanium was burned in a bomb calorimeter. The bomb calorimeter has a heat…

A: The solution is as follows :

Q: A 7.47 g sample of an unknown salt (MM = 116.82 g/mol) is dissolved in 150.00 g water in a coffee…

A: Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts…

Q: 12. A 44.0 g sample of unknown metal at 99.0 °C was placed in a constant-pressure calorimeter, with…

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Q: A 3.96 g sample of carbon is introduced into the combustion chamber of a calorimeter containing…

A: A numerical problem based on heat released, which is to be accomplished.

Q: A 7.37 g sample of an unknown salt (MM = 116.82 g/mol) is dissolved in 150.00 g water in a coffee…

A: Given, Mass of sample = 7.37 gMass of water = 150 g Mass of solution = 157.37 g Initial temperature…

Q: The energy content of food is typically determined using a bomb calorimeter. Consider the combustion…

A: Given information: Mass of sample = 0.30 g Heat capacity = 2.67 kJ/°C Initial temperature = 23.5°C…

Q: The energy content of food is typically determined using a bomb calorimeter. Consider the combustion…

A: Given: Mass of sample of butter = 0.48 g Heat capacity of calorimeter = 2.67 kJ/°C Temperature of…

Q: A chemist is asked to determine the specific heat capacity of an unknown mineral. The 154-g sample…

A:

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 23.12-gram metal bar sample at 76.21 C is placed in a constant-pressure calorimeter containing…

A:

Q: A student conducts a calorimetry experiment on an unknown metal object. The unknown metal object…

A: Given : The total amount of heat absorbed by the water = 2310 J Mass of metal = 82.522 g Initial…

Q: A 4.81 g sample of an unknown salt (MM = 116.82 g/mol) is dissolved in 150.00 g water in a coffee…

A: Given, Mass of unknown sample ,ms=4.81 g  mass of water, mw= 150 g initial temperature Ti=23.72°C…

Q: 15.0 mL of a strong base is added to 15.0 mL of a strong acid in a coffee cup calorimeter. The…

A: Given information: 15.0 mL of a strong base is added to 15.0 mL of a strong acid in a coffee cup…

Q: 15.0 mL of a strong base is added to 15.0 mL of a strong acid in a coffee cup calorimeter. The…

A: Given: The volume of the base = 15.0 mL The volume of the acid = 15.0 mL The concentration of the…

Q: When you mix two substances, the heat gained by one substance is equal to the heat lost by the other…

A: According to the specific heat equation : q = m. C. ∆ T Where  q = heat absorbed or released m =…

Q: An experiment was performed to determine the heat capacity of a coffee cup calorimeter. The…

A:

Q: Under constant-volume conditions, the heat of combustion of benzoic acid is 26.38 KJ/g. A 2.760-g…

A: The heat of combustion per gram of the new substances is calculated in step two.

Q: 33.79 g of a solid is heated to 100.°C and added to 50.0 g of water in a coffee cup calorimeter and…

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Q: Calculate the final temperature of the water. Given a 32.4-g stainless steel ball bearing at…

A:

Q: The energy content of food is typically determined using a bomb calorimeter. Consider the combustion…

A: From thermodynamics, we have: q=mc∆T…

Q: You have 8.99 g sample of an unknown salt (MM = 116.82 g/mol). It is dissolved in 150.00 g water in…

A: Mass of unknown salt = 8.99 g Molar mass of unknown salt= 116.82 g/mol Mass of water = 150.00 g…

Q: When a 0.740-g sample of trinitrotoluene (TNT), C,H,N‚O§, is burned in a bomb calorimeter, the…

A: Mass given = 0.740 g  Heat capacity = 3.35 KJ°C-  Initial Temperature = 23.4 °C  Final temperature =…

Q: 225 ℃ in an oven.  It is then dropped into a calorimeter containing 250.0-mL of glycerol (d = 1.261…

A: We will use calorimetry principle