How many calories of heat must be required to raise 990 grams of water at 18 °C to 97 °C?

Q: 1. Distinguish intramolecular forces of attraction and intermolecular forces of attraction.

A: We'll answer the first question since the exact one wasn't specified. Please submit a new question…

Q: 3. Calculate the heat required to convert 40.0 g of acetic acid, HC2H3O2, from a solid at 16.0 °C to…

A: 3. The conversion of acetic acid from solid to liquid is as follows: acetic acid (sol, 16.0°C)…

Q: how many calories are needed to warm 2.50 kg of water 5.00 C?

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Q: Explain why the curve has two segments in which heat is added to the water but the temperature does…

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Q: If a student wants to make 225.0 mL of a 17.65M stock solution of ZnCl 2, how many grams of solid,…

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Q: Calculate the kinetic energy, in J/mol, of 1.00 mol of gaseous water molecules at the boiling point…

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Q: How many kilojoules are required to change the temperature of 64.5 g  of water from 22.2 oC  to 45.3…

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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: A sample of salt water will freeze at a higher temperature than a sample of pure water. O True False

A: The freezing point of pure water depends on the surface of the solution or solvent.

Q: Using the molar heat of solution provided in the question above: determine how many g solid sodium…

A: The molar heat of the solution of sodium hydroxide is = -445.1 kJ/mol The volume of the water is =…

Q: How much heat is required to change 265.4 g of water at 70.3°C to steam at 100.0°C? kcal

A: The amount of heat required to change 265.4 g of water at 70.3°C to steam at 100.0°C is to be…

Q: What would be the final temperature if 55.0g of H2O at 30 degrees Celsius is added to 45.0g of H2O…

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Q: kilocalories to freeze 245 g of water

A: Weight of water =245 gm we know heat of fusion of water=80 cal/gm

Q: How many calories are released when 10.0 g of steam condenses?

A: 1 g of water for conversion of steam requires 540 calories.

Q: How much heat in kJ is required to transform a 500-g ice at-15°C into tiquid water at 55°C? (Express…

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Q: In a coffee-cup calorimeter, 23.8 g sample of solid KBr is dissolved in 100.0 g of water at 15.0 °C.…

A: Given mass of water = 100 g Mass of KBr = 23.8 g Molar mass of KBr = 119 g/mol specific heat (C) =…

Q: energy is required

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Q: If 40.5 g of KCI are dissolved 250.0 g of water at 25.0 °C in an insulated container, a temperature…

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Q: What is the final temperature (in °C) of 850.1 g of water (specific heat = 4.184 J/g･°C) at 24.20°C…

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Q: how many grams of table salt must be added to half a liter of water to raise its boiling point by 15…

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Q: How many calories are released when 10.0 grams of steam condenses?

A: I am assuming that the steam condenses from the boiling point to the melting point. Thus, the steam…

Q: Explain how the density of water varies from 0⁰C to 10⁰C and explain how this temperature density…

A: Water exhibits an abnormal property whereby it expands instead of contracting when the temperature…

Q: Calculate the heat change in calories for freezing 45 gg of water at 0 ∘C∘C.

A: Heat change in freezing of a substance is equal and opposite of heat change in melting of the…

Q: The high specific heat of water explains why climates on land near bodies of water are moderate.…

A: Please find your solution below : Specific heat of a substance is defined as the amount of heat…

Q: 1) If a student wants to make 225.0 mL of a 17.65M stock solution of ZnCl 2, how many grams of…

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Q: 11. When 6.50 g of solid NaOH is dissolved in 100,0 g of water in a calorimeter, the temperature…

A: Given 6.5 g of NaOH added to 100 g of water ,  temperature increased from 21.6°C to 37.8°C  Find the…

Q: Dissolving 4.45 g of KOH in 50.0 g of water raises the temperature of a calorimeter from 21.0 C to…

A: We have to predict the heat of solvation per gram of base.

Q: How many grams of ice at -15.0degrees celsius must be added to 50.0 mL of water at 80degrees celsius…

A: We know that the system at higher temperature loses heat and the system which is at lower…

Q: What is the heat energy required to change 10 grams of liquid water at 0ºC to 100ºC?

A: Given,  Mass of liquid water= 10 grams Initial temperature= T1= 0 °C Final temperature = T2 = 100 °C…

Q: 4. How much heat (in kJ) is needed to change 6.7 g of liquid benzene at 12°C to gaseous benzene at…

A: Answer:- This question is answered by using the simple concept of calculation of heat using the…

Q: At which portion(s) on the graph below is the average kinetic energy of the water molecules…

A: from graph Avg Kinetic energy of the Water Molecules become constant on position g and k So option…

Q: How many joules are in 3245 cal?

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Q: fishes need oxygen to survive. Goldfish in a crowded aquarium has a better chance of survival in…

A: The reason why goldfish survives in cold water when compared to warm water has to be given.

Q: A 214g sample of water at 78.8o Celsius is taken to freezing point 0 Celsius .How much energy was…

A: The amount of heat released in taking water from 78.8oC to 0oC can be determined as follows: Q =…

Q: Sodium chloride, the table salt (NaCl) is added in cooking to enhance the flavor of the food. When…

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Q: how many calories are required to raise the temperature of 255g of water from 42c to 75c?

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Q: How many mL of ethanol is present in 1000mL apple wine with 10.5% by volume ethanol?

A: Given  Percentage v/v ( %v/v) = 10.5 % Volume of apple wine = 1000 mL Volume of ethanol present = ?…

Q: A generic solid, X, has a molar mass of 58.9 g/mol. In a constant-pressure calorimeter, 30.9 g of X…

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Q: Calculate the amount of heat, in calories, that must be added to warm 70.9 g of brick from 19.3 °C…

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Q: How much heat in kilocalories is absorbed when 22.0 g of 2-propanol evaporates after being rubbed on…

A: The heat of vaporization of a substance is defined as the amount of heat required to vaporize 1 g of…

Q: How many Joules of energy are needed to increase 250.0 g of water from 22.8C to 37.9C? a) 3780  b)…

A: Q = MS∆T  here, Q = energy needed  M = mass of water  S = specific heat  ∆T = temperature gradient

Q: Determine the amount of heat required to raise 10 grams of water 5 degree celcius ?

A: Specific heat capacity of water = 4.18 J/g oC

Q: How many joules of heat are required to heat 25.2 g of ethyl alcohol from the prevailing room…

A: Heat required to change the temperature of a substance depends on the amount and the specific heat…

Q: Which of the following pairs of liquids when mixed would give a higher boiling point than that…

A: Explained as follows

Q: Sodium chloride, the table salt (NaCl) is added in cooking to enhance the flavor of the food. When…

A: Consider the given information is as follows; Volume of water = 200.0 mL Density of water = 1.00…

Q: A student is trying to freeze a solution of urea in the lab where the temperature is around 22°C.…

A: Depression in freezing point of solution = i ×Kf ×m Where Kf = molal freezing point depression…

Q: enthalpy

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Q: Match the following units to their correct property: A Density of Solution B Molarity C…

A: Density is defined as the ratio of mass of a substance to its volume. The formula to calculate…