Calculate the calories lost when 85 g of water cools from 45 ∘C to 25 ∘C

Q: A 25.0-g sample of rock at 250 °C is dropped into 100.0 g of water at 19 °C. If the water…

A: Specific heat is the measure of the heat required to raise the temperature of the substance by one…

Q: How many calories of heat energy are released when 50 grams of water is cooled from 70°C to 60°C?

A: This problem can be solved using the formula Q = mC∆T  Where, Q = heat released or absorbed by water…

Q: An 8.29 g sample of calcium carbonate \ CaCO 3 (s)\ absorbs 50.3J of heat, upon which the…

A: The heat content of any substance can be expressed in terms of heat capacity or specific heat. Heat…

Q: If 0.40 kJ of heat is removed from a sample of water and it cools from 25°C to 15°C, what is the…

A: Mass of water is approximately 9.57 grams

Q: It took 412.5 J of heat to raise the temperature of 24.6 g of a substance from 14.5°C to 52.6°C.…

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Q: How much heat is released when 358 g of water cools from 68.3°C to 18.9°C? The specific heat of…

A: This is the question of thermodynamics Here we have to calculate heat released It uses the formula…

Q: In the heat of fusion for water is 80. cal/ g  how many calories are needed to melt 35.0 grams of…

A: Given : Heat of fusion of water = 80 cal/g And mass of ice = 35.0 g

Q: How many calories of heat are needed to increase the temperature of 55 g of ethanol from 18 °C to 48…

A: Given,  55 g of ethanol from 18 °C to 48 °C

Q: Calculate the number of calories released when 32.0 g of water cools from 95.0°C to 20.0°C. The…

A: Given Mass of water = 32g Specific heat of water = 1 cal/g.°C Tinitial = 95°C Tfinal = 20°C

Q: Calculate the amount of energy required to heat 357 g of ethylene glycol (antifreeze) from 0°C to…

A: Given, Mass of ethylene glycol (m) = 357 g Initial temperature (Ti) = 0°C Final temperature (Tf) =…

Q: How much heat is required to raise the temperature of a 5.75-g sample of iron (specific heat = 0.450…

A: The heat required to increase the temperature of metals are given by  Q = mCΔT where m = mass of…

Q: What would be the final temperature if 500 J of heat were transferred into 20. 0 g of Methanol…

A:

Q: How much heat will be absorbed by a 96.7 g piece of aluminum (specific heat = 0.930 J/g·°C) as it…

A: To solve this problem we will use the formula  Q = mC∆T  Where ,  Q = heat absorbed  m = mass of…

Q: How much energy is required to warm the water?

A: Given :-  mass of sample of water = 200 g  initial temperature = 50.0 °C  final temperature = 68.0…

Q: If 25.0 kJ of heat are given off when 2.9 g of HCl condenses from vapor to liquid, what is AHcond…

A: Given that: HCl(g) ...> HCl(l) dH = -25.0KJ upon 2.9 g of HCl

Q: Question 24

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Q: How much heat is required to warm 162g of water by 33℃? Cwater = 4.184J/g℃

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

Q: Determine the specific heat of 122 grams of an unknown substance if it absorbed 270 kJ of heat as it…

A: Specific heat of a substance can be defined as the amount of heat required to raise temperature by…

Q: The specific heat capacity of iron is 0.45J/gC   How many joules of energy are needed to warm 1.16g…

A: Given: Specific heat capacity of iron= 0.45J/gC  Mass of iron= 1.16 g T1= 20.0 C T2= 29.0 C

Q: How many calories are required to raise the temperature of a 73.0 g sample of gold from 26.0 °C to…

A: q = mc∆T  q is the amount of heat energy required  m is the mass of substance  c is the specific…

Q: Calculate the number of calories released when 32.0 g of water cools from 95.0 C to 20.0 C. The…

A: Since the heat of the process is given by  Q = mCΔT  where Q = heat involved  m = mass = 32 g C =…

Q: A 29.8 g sample of water at 4.7 C is mixed with 52.5 g of water at 74.8 C. Calculate the final…

A: Given data,Mass of water(1)=29.8gTemperature(T1)=4.7oCMass of…

Q: 7.  How much heat, in joules and in calories, is required to heat a 28.4-g (1-oz) ice cube from…

A: A form energy is heat which is also known as thermal energy. Any particular substance's heat…

Q: If the specific heat of a material is 0.416 J/(g°C) and sample absorbs 50 J when it is heated from…

A: Specific heat is defined as the amount of heat required per unit mass of a substance to raise the…

Q: Suppose that 3,248 J of heat is removed from 86.5 grams of octane at an initial temperature of…

A: Since the heat of any process at constant pressure is given by  Q = mCΔT  where Q = heat given =…

Q: How much heat (in kilojoules) is gained by 231 grams of water that is warmed from 25.00C to 39.00C?…

A: Given: Mass of water=231 g Temperature change, ∆T=(39.0-25.0)°C=14 °C The heat gained q =? kJ…

Q: How much heat (in Joules) is gained by 447 grams of water that is warmed from 25.0 J °C to 54.0°C?…

A: The amount of heat absorbed (or released) by fixed amount of a substance to change its temperature…

Q: How much heat is released when the temperature of an 8.21 g sample of gold decreases from 87.9 oC to…

A: q = mc∆T  q is the amount of heat energy released or absorbed m is the mass of substance  c is the…

Q: What amount of heat is released when the temperature of 450.0 g of a substance drops by 7.1 °C?…

A: Amount of heat released or absorbed is given by the formula :- Q = m × c × ∆t Where m = mass of…

Q: 3. How much heat is required to change temperature of 2g of water from 34°C to 68°C? (Water has a…

A: Given  Mass of water                 = 2 gram  Initial Temperature ( T1) = 34 ℃ Final Temperature…

Q: A 19.85 g sample of an unknown substance is heated from 25°C to 125°C using 1750 J of heat. What is…

A: The specific heat required to raise the temperature of a substance is given as:

Q: 7. The temperature of a sample of water increases from 20°C to 46.6°C as it absorbs 5650 calories of…

A: Data given, Heat absorbed, Q = 5650 cal Specific heat of water, C = 1.0 cal/g. °C  Initial…

Q: A 27.7 g sample of ethylene glycol is cooled from 42.8°C to 32.5°C. If the specific heat of ethylene…

A: Given :  mass of ethylene glycol = 27.7 g  initial temperature = 42.8°C  final temperature = 32.5°C…

Q: Assuming that Coca Cola has the same specific heat as water [4.18 J/(g . °C)], calculate the amount…

A:

Q: Calculate the heat lost by a 50.0 g piece of a copper metal that decreases its temperature from45 C…

A:

Q: What amount of heat is required to increase the temperature of 15.0 g of mercury from 22.3°C to…

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

Q: Calculate the energy required (q) to heat 28.6 g of water from 22.0 °C to 78.3 °C. (specific heat of…

A:

Q: 35 g of aluminum (specific heat 0.88 J/g °C) at 24 °C are placed in 180 mL (180 g) of coffee at 85…

A: Given :         Mass of Aluminium = 35 g          Specific heat = c = 0.88 J/g0C…

Q: 1. How much heat, in calories, does it take to raise the temperature of 814 g of water from 18.0°C…

A: Heat energy can be calculated by using the formula : Q = m×s×ΔT    -------(1) Where, Q is heat…

Q: How much heat will be absorbed by a 42.3 g piece of aluminum (specific heat = 0.930 J/g･°C) as it…

A:

Q: How much heat (in kilojoules) is gained by 294 grams of water that is warmed from 25.00C to 57.00C?…

A:

Q: The specific heat of a certain type of metal is 0.128 J/(g.°C). What is the final temperature if 305…

A: The heat (q) absorbed or removed by a metal or compound can be calculated by the mass of the…

Q: 7. Calculate the amount of heat(in J) required to increase the temperature of a 22.6 g copper sample…

A: The amount of heat (q) required to increase the temperature (∆t) of a substance of mass m gram is…

Q: When the certain mass of mercury are heated from 10.0 oC to 15.0 oC, 55.2 J of energy are absorbed.…

A:

Q: If 18.0 kJ of heat are given off when 2.1 g of HCl condenses from vapor to liquid, what is AHcond…

A:

Q: How much heat is gained by nickel when 213 g of nickel is warmed from 22.2 °C to 59.0 °C. J The…

A: Interpretation: Heat gained by nickel when 213 g of nickel is warmed from 22.2 oC to 59.0 oC is to…

Q: An 8.29 g sample of calcium carbonate [CaCO3(s)] absorbs 50.3 J of heat, upon which the temperature…

A: Mass of CaCO3 = 8.29 g Amount of heat absorbed = 50.3 J Specific heat of CaCO3 can be calculated as…

Q: If 125 calcal of heat is applied to a 60.0-gg piece of copper at 21.0 ∘C∘C , what will the final…

A:

Q: 6. A metal bar with a specific heat of 0.611J/g Cthat has been heated to100.0 "C is placed into a…

A: We have to calculate the mass of metal.

Q: 2. When 15 g of oil at25.0°C is placed in a wok, 2.18 kJ of he it to a temperature of 101°C. What is…

A: The required formula is  Q = m S ∆T  Where  Q = amount of heat = 2.18 KJ  = 2180 J m = mass of…