Q: 1. How much heat is needed to raise the temperature of 125.0 grams of water by 12.0 °c? C AT
A: Q = M*C*∆T Q = heat absorbed. M = mass of the sample. 125g C = specific heat. 4.18 ∆T = change in…
Q: Water has a heat of fusion at 80.0 cal per gram. If I have 4.14 g of ice at its melting point how…
A: Heat of fusion is 80 cal/g. We have 4.14 g of ice at 0°C. We have to calculate the heat required to…
Q: Calculate the amount of heat needed to melt 108.g of solid methanol (CH3OH) and bring it to a…
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Q: How many joules are given off when 120 gram of water are cooled from 25 Celsius to -25 Celsius?
A: Heat capacity is defined as the amount of heat energy is required by 1 gram of a substance (matter)…
Q: Ethanol melts at -144°C and boils at 78°C at a constant pressure of 1atm. What state of matter must…
A: The boiling point of a substance is the temperature at which the vapor pressure of the liquid equals…
Q: a 500g sample of. water at 53 degree celsius is cooled down "-7" degree. celsius how much energy is…
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Q: 5) The specific heat of water is: A. 5 Cal per g per C B. 2 Cal per g per C C. 3 Cal per g per C D.…
A: Introduction: The heat capacity of a matter is the quantity of heat required to increase the…
Q: 1. What is the final temperature when the 625 g of water at 75.0°C loses 7.96 x10^4 J?
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Q: Which of the following represents an increase in kinetic energy? O A. Cooling steam from 165°C to…
A: When the temperature of an object increases, the average kinetic energy of its particles increases.…
Q: if chart B represents the cooling of a 14.0 g of a substance at a constant rate, determine the…
A: During cooling, the substance loses energy (in the form of heat) and the temperature of the system…
Q: Q6. Calculate the amount of heat (kcal) released when 50.0 g of steam at 100°C hits the skin and…
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Q: Convert each temperature. a . 32 °p to 0 c (temperature at which water freezes) b. 77 K to 0 P…
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Q: a 44 gram piece of ice at 0 degrees celsius is added to a sample of water at 6.8 degrees celsius.…
A: The mass of ice is = 44 g The mass of water sample =? The temperature of ice is = 0 degrees celsius…
Q: Calculate the amount of heat needed to boil 80.0g of hexane (C6H14), beginning from a temperature of…
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Q: Calculate the kilocalories needed to melt a 825 gg ice sculpture at 0 ∘C∘C and to warm the liquid to…
A: The amount of kilocalories needed to melt a 825 g ice sculpture is calculated as,
Q: Calculate the amount of heat needed to boil 49.6 g of methanol (CH,OH), beginning from a temperature…
A: Consider the given information is as follows; Mass of methanol = 49.6 g Initial temperature T1 =…
Q: Calculate the amount of heat needed to melt 125. g of solid methanol (CH,OH) and bring it to a…
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Q: Which of the following is the state of matter that exists at 30°C and 1 atm?
A: State of matter depend on nature of material for example . Water is in liquid state at 30°C…
Q: A 251.3g sample of water at 5.3 Celsius is taking the freezing 0 Celsius how much energy was…
A: Given, Mass of Water = 251.3 gms = 0.2513 kg Change in Temperature = (0°C - 5.3°C) = (273 K - 278.5…
Q: Twenty grams of water at 60 C is heated to steam (superheated steam) at 115 C. How much energy is…
A: Heat absorbed by water to convert it from water to vapor.
Q: Calculate the amount of heat needed to melt 147. g of solid benzene (C,H) and bring it to a…
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Q: A 45.0 mL sample of water is heated to its boiling point. How much heat is required to vaporize it?…
A: Given volume of water is--- 45.0mL Density of water is --- 1.00g/mL How much heat is required to…
Q: Calculate the amount of heat needed to melt 13.2 g of ice (H₂O) and bring it to a temperature of…
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Q: Calculate the amount of heat needed to melt 152. g of solid methanol (CH,OH) and bring it to a…
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Q: Calculate the amount of heat needed to melt 161. g of solid benzene (C¸H ) and bring it to a…
A: The process of converting solid into liquid is called melting and the temperature at which melting…
Q: How many joules of heat are lost b A 400 g of substance as it cools from 50.5 C to -10.5°C? The…
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Q: Calculate the amount of heat needed to melt 75.8 g of solid acetic acid (HCH3CO₂) and bring it to a…
A: The correct answer is given below
Q: Calculate the amount of heat needed to melt 171. g of solid methanol (CH,OH) and bring it to a…
A: Moles are defines as the ratio of mass by the molar mass. The heat of fusion is the heat required to…
Q: Calculate the amount of heat needed to melt 104.g of solid methanol (CH3OH) and bring it to a…
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Q: On your paper, draw the cooling curve for SO2 starting at -50 °C and ending at -100 °C. At each…
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Q: Calculate the amount of heat needed to boil 146. g of hexane (C,H14), beginning from a temperature…
A: Given: Mass of hexane = 146 g Initial temperature of hexane = -16.6 oC
Q: How much energy in kilocalories is needed to cool steam weighing 3.40 g at 172.0°C to -5.28°C?
A: Given: Mass of cool steam=3.40 g T1=172∘C T2=-5.28∘C To find: Energy Solution: We know that there is…
Q: Calculate the amount of heat needed to boil 14.8 g of ethanol (CH,CH,OH), beginning from a…
A: Answer: Boiling the given sample of ethanol is a two step process: 1. Heating of ethanol up to it…
Q: How many joules are required for each of the following changes? c. boiling 21.1 g of water at 100°C
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Q: Calculate the amount of heat needed to melt 173. g of solid benzene (C,H) and bring it to a…
A: Melting point of benzene is 5.5C. Heat required to melt Benzene = n x ∆Hfus Where, ∆Hfus =…
Q: How hot must the air in a balloon be heated if initially it has a volume of 750. L at 20 °C and the…
A: Charles law implies that when pressure and amount remain constant, the volume of a gas is directly…
Q: If 145 KJ Of Energy Is Added To Water, What Mass Of Water Can Be Heated From 35 °C To 100 C And Then…
A: If 145 kJ of energy is added to water, the mass of water that can be heated from 35 °C to 100 °C and…
Q: The higher the heat of fusion, the longer the line in temperature versus energy graph. O True O…
A: Given: The higher the heat of fusion, the longer the line in temperature v/s energy graph.
Q: If 2400 J of heat melts a piece of solid mercury, what is the mass of the mercury
A: The heat required to melt a substance is calculated as: Q =m.Lf where Q is the heat required to melt…
Q: Q7. What is the amount of heat (kcal) when 50.0 g of steam hits the skin, condenses, and cools down…
A: Given: The mass of steam = 50.0 g We have to calculate the amount of heat in kCal when 50.0 g of…
Q: Calculate the amount of heat needed to boil 108. g of octane (CgH18), beginning from a temperature…
A: Please find your solution below :
Q: Calculate the amount of heat needed to melt 173. g of solid hexane (C,H,4) and bring it to a…
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Q: A 255 mL round-bottom flask is weighed and found to have a mass of 114.85 g. A few milliliters of an…
A: We know that, PV = nRT n = PV/RT Given, P = pressure = 1 atm R = 0.0821 l.atm.mol-1.k-1 T =…
Q: Calculate the amount of heat needed to melt 173. g of solid benzene (C,H) and bring it to a…
A: We know according to Hess law, the amount of heat change in a single step or in multiple step are…
Q: Calculate the amount of heat needed to boil 138. g of hexane (C,H), beginning from a temperature of…
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Q: Which state of matter takes the shape of its container and is compressible?
A: There are three states of matter: solid: solid has a definite shape and having a definite volume,…
Q: How many joules are required to boil 200 grams of water?
A: Given, The heat energy required to boil of 200g of water is:
Q: What is the heat, q , required to melt 10 grams of ice in a) Joules b) calories
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How many joules are given off when 120 grams of water are cooled from 25˚C to -25˚C?
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- 2. Two students weigh a gelatin capsule (0.112g). Next they add pieces of aluminum-zinc alloy to the capsule and weigh the capsule and alloy (0.271g). They weigh out an empty beaker (141.209) and begin the experiment. After the reaction, they determine the mass of the beaker (with displaced water) to be 307.712g. The temperature of the water was 21 degrees Celsius and the barometric pressure was 745.9 mmHg. Fill the calculation section of the table on the following page.How many kilocalories are lost when 580g of water cools from 67 degrees celsius to 22 degrees Celsius.?How many joules of heat are required to change 563 grams of solid ice with a temperature of260 Kelvin into that many grams of liquid water with a temperature of 300 Kelvin? [For thisquestion, you may use 273 Kelvin as the melting point of ice.]
- Calculate the amount of heat needed to boil 39.6 g of hexane (C,H4), beginning from a temperature of 47.6 °C. Round your answer to 3 significant digits. Also, be sure your answer contains a unit symbol. ?Calculate the amount of heat needed to boil 184. g of hexane (C6H₁4), beginning from a temperature of.-35.0 °C. Round your answer to 3 significant digits. Also, be sure your answer contains a unit symbol. □ XA sample of water of a mass of 417.9g and an intial temperature of 61.79 degrees celsius loses 35705 joules. What is the final temperature?
- 1 calorie is equal to 4.184 joules. true or falseHow much lead shot needs to be heated to 389 degrees C when placed in 78.6 g water that started at 22.5 degrees C to reach a final temperature of 94.8 degrees C?Calculate the amount of heat needed to boil 148. g of hexane (C6H₁4), beginning from a temperature of -45.5 °C. Round your answer to 3 significant digits. Also, be sure your answer contains a unit symbol. 0 0 x10 X