1.Neon, a gaseous element used in neon signs, has a melting point of -248.6 °C and a boiling point of of -2461.1 °C. Express this temperature in kelvin.

Q: A 100 mL sample of water at 109.0°C is added to a beaker containing 200 ml of water at 7.00°C.…

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Q: A 522.5 g sample of aluminum is initially at 23.2 C. It absorbs 23.73 kJ of heat from its…

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Q: heat in kJ

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Q: How much heat energy is required to raise the temperature of 0.366 kg of copper from 23.0 ∘C to 60.0…

A: The heat energy required to raise the temperature can be calculated as follows,

Q: 80.2 grams of a metal that is at temperature 95.15 °C is placed in 257.0 mL of water at 19.06 °C.…

A: Given mass of metal = 80.2 g density of water = 1g/ml volume of water = 257 ml specific heat of…

Q: A beaker contained 70.3 g of water at 13.51°C. A 102.77-g sample of metal at 72.84°C was placed in…

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Q: A coffee-cup calorimeter contains 50 of water with an initial temperature of 24.8 degrees * C An…

A: GIVEN:- A coffee-cup calorimeter contains 50 of water with an initial temperature of 24.8 degrees *…

Q: How much energy is necessary to heat 8.0 kg of water from room temperature (20°C) to its boiling…

A: GivenMass of water given = 8kg                                 = 8000gDifference in temperature=…

Q: A hot-water bottle contains 725 g of water at 73 °C. If the liquid water cools to body temperature…

A: Given: Mass of water=725 g Temperature change, ∆T=(37-73)°C=-36 °C Heat needed q =? kJ Specific…

Q: 5. 5. If 20,000 J of energy are used to heat mercury by 4.00 °C, what is the mass of mercury? 6.…

A: Heat released or absorbed by a substance is calculated as: q = m.C.∆T where m is the mass of the…

Q: 32 mL of ethanol with an initial temperature of 11oC absorbs562 J of heat. Find the final…

A: Given that: Volume of ethanol (V) = 32 mL Density of Ethanol (d) = 0.789g/mL Initial temperature…

Q: - A 2.0 kg piece of aluminum, which is at a temperature of 400 ° C, is cooled   to 50 ° C.   The…

A: Given values -> Weight of aluminium piece = 2.0 kg =2000gm T1= 400°C T2=50°C ∆T = T2-T1 = 50-400…

Q: How much heat is required to raise the temperature of 34.0 g of water from-15 °C to 145 °C? heat:…

A: Given mass of water is 34.0g Initial temperature is -15oC. Final temperature is 145oC. How much heat…

Q: The inital temperature of a 46-g sample iron is 22 degrees celcius. If the sample absorbs 526J of…

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Q: If a battery releases 566.8 J of energy and 201 J are used for work, how much energy is released as…

A: Given : Total energy released by battery = 566.8 J Energy used for work = 201 J

Q: 80.2 grams of a metal that is at temperature 95.15 °C is placed in 257.0 mL of water at 19.06 °C.…

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Q: A sample of metal with a mass of 28.5 grams is heated to 95.0, and placed in a calorimeter…

A: Given, For metal: mass of metal (mmetal) = 28.5 g Specific heat capacity of metal (spmetal) = ?…

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

A: To raise the temperature by 1∘ Celsius of a particular substance then for this a certain amount of…

Q: Copper wires used to transport electrical current heat up because of the resistance in the wire. If…

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Q: 1. Consider the following food label Serving Size 2tsp (5g) Serving per container about 5 Amount per…

A: To answer questions about the given food label.

Q: 500.0 g of acetone is heated from –100.0 °C to 60 °C. How much heat (in kJ to two decimal places) is…

A: Given,  Mass of acetone, m = 500 g = 0.5 kg  Change in temperature, ∆T = 60-(-100) = 160 °C Cp for…

Q: Water heat is of 4.18j?g c° what is the quantity of energy in kJ required to increse the temperature…

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Q: How much heat is required to adjust the temperature of 91.2 grams of copper from -32.2°C to 315°C?

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Q: A metal radiator is made from 16.37 kg of iron. The specific heat of iron is 0.449 J/g °C. How much…

A: Given Mass = 16.37 kg = 16.37 x 1000 g = 16370 g Specific heat capacity = 0.449 J/goC Initial…

Q: 3. Mixing 1.00 mL of 1.00M HNO, and 1.00 mL of 1.00 M KOH causes the temperature of the two at…

A: 3.

Q: A student placed a 25.3-g piece of copper in a calorimeter prepared for her by her teacher.…

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Q: Use the heat equation to calculate the energy, in joules and calories, for each of the following…

A: The  heat needed to change the temperature of any substance is connected with specific heat capacity…

Q: heat in kJ

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Q: When a 0.67-g sample of olive oil is burned in a calorimeter, the heat released increases the…

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Q: A piece of metal weighing 28.8 g was heated from 22.0 °C to 44.8 °C. If the amount of heat needed…

A: Answer :-  a) Specific heat of metal = 0.449 (J/g.°C)  b) The given metal is Fe.…

Q: 40. Gloves are often worn to protect the hands from being burned when they come in contact with very…

A: Given,  Mass of glove = 50.0 grams Heat absorbed= 1.65 kJ We need to calculate the increase in…

Q: 31.) A small candy bar has 52.0 Calories.  If all the energy is converted to heat by how much would…

A: For any known substance whose mass/amount is 1.0 gram, the heat amount (Q) necessary for…

Q: How much heat, in units of Joules, is needed to warm 647.2 g of copper from 40 °C to 82 °C? The…

A: q = mc∆T q = heat  m = mass of copper  c = specific heat of copper  ∆T = change in temperature

Q: A 28.4 g sample of aluminum is heated to 39.4 ̊C, then is placed in a calorimeter containing 50.0 g…

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Q: A 38.3 g sample of a metal is heated to 86.3 °C and placed into coffee cup calorimeter containing…

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Q: piece of metal was placed into a 75.00 grams of water. the temperature of the water increased from…

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Q: A 50.0-g sample of water at 25.0°C is mixed with 29.0 g of water at 89.0°C. The final temperature of…

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Q: 14.0 g of metal at 24.0 °C has 250 joules of heat added to it. The metal's specific heat is 0.105…

A: We have given that  14.0 g of metal at 24.0 °C has 250 joules of heat added to it. The metal's…

Q: How much energy is required to heat 105.0 grams of the substance from 14.0 degrees * C to 73.0…

A: Heat energy required for the transition can be calculated using respective phase changes and…

Q: Carry out the following temperature conversions. Watch Significant figures. An over the counter pain…

A: Conversion of temperature scale....

Q: How much heat energy is required to raise the temperature of 0.361 kg of copper from 23.0 °C to 60.0…

A: Given, Mass of copper = 0.361 kg Initial temperature = 23.0 ∘C Final temperature = 60.0 ∘C Specific…

Q: A beaker contained 67.27 g of water at 19.84°C. A 89.96-g sample of metal at 67.86°C was placed in…

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Q: How many kilocalories of heat (energy) would it take to heat 141.0 g of water from 23.0 °C to 85.0…

A: Given How many kilocalories of heat would it takes to heat 141.0g of water from 23.0 °C to 85.0 °C?

Q: A water heater contains 60 gal of water. How many kilowatt-hours of energy are necessary to heat the…

A: Conversion of the units of volume from gallon to mL: The mass of water can be calculated as given…

Q: Part A How much heat must be absorbed by a 13.0 g sample of water to raise its temperature from 13.0…

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Q: A lead pipe that weighs 14.0 lbs sits out in the sun. So is a bucket of a) What is the pipe's weight…

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Q: 40. Gloves are often worn to protect the hands from being burned when they come in contact with very…

A: Given data set: Mass of glove = 86.2 grams Increase in temperature= 25.9 F = 14.36 C Heat absorbed=…

Q: Say that you have found a gold-colored nugget while on a hike. The nugget has a mass of 53.55…

A: We have to identify the character of nugget.

Q: A small piece of iron with a mass of 52.7 grams is heated from 20 degrees Celsius to 31.7 degrees…

A: Given, Mass of piece of iron (m) = 52.7 g Initial temperature (Ti) = 20°C Final temperature (Tf) =…

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.