)How much will the temperature of a cup (180 g) of coffee at 95 °C be reduced when a 45g silver spoon (specific heat 0.24 J/g °C) at 25 °C is placed in the coffee and the two are allowed to reach the same temperature? Assume that the coffee has the same density and specific heat as water (1.00 gm/mL).

Q: A 6.57 g sample of an unknown salt (MM = 116.82 g/mol) is dissolved in 150.00 g water in a coffee…

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Q: 55.0 g of NaOh is added to a coffee cup calorimeter containing 812 mL of 1.10 M Hbr, changing the…

A: Given information,Mass of NaOH is 55.0 g.Volume of HBr is 812 mL and concentration is 1.10…

Q: A 4.79 g sample of an unknown salt (MM = 116.82 g/mol) is dissolved in 150.00 g water in a coffee…

A: Calorimetry is the easiest way to calculate the amount of heat transfer to a substance or from a…

Q: A student heats 84.17 mL of water to 95.27°C using a hot plate. The heated water is added to a…

A: Heat capacity : heat capacity, ratio of heat absorbed by a material to the temperature change. It is…

Q: Two amounts of 50.0 g of water, at 13.0 and 55.0 °C, respectively, were mixed inside a cup. If the…

A: heat capacity = m C ΔT m = 50 g C = 4.18 J/g c ΔT = 55-13 = 42 c

Q: In a coffee-cup calorimeter, 120.0 mL of 1.4 M NaOH and 120.0 mL of 1.4 M HCl are mixed. Both…

A: coffee-cup calorimeter, 120.0 mL of 1.4 M NaOH and 120.0 mL of 1.4 M HCl are mixed. Therefore, Total…

Q: The change in enthalpy (heat of solution) for ammonium nitrate dissolving in water is 25.7 kJ/mol.…

A: Given,  The change in enthalpy (heat of solution) for ammonium nitrate dissolving in water is 25.7…

Q: The change in enthalpy (heat of solution) for ammonium nitrate dissolving in water is 25.7 kJ/mol.…

A: Molar mass of ammonium nitrate =80.043g/mol

Q: A constant pressure (or coffee cup calorimeter) contains 125g of water at a temperature of 24.2°C.…

A: Given , mass of water = 125 ginitial temperature, Ti=24.2°Cmass of KBr added = 10.5 gFinal…

Q: 5.2 g of NaOH is added to a coffee cup calorimeter containing 861 mL of 1.10 M acid, where the acid…

A: Given molarity of acid = 1.10 M  Volume = 861 mL  Density of the solution = Density of water = 1.0…

Q: Dissolving 3.0 g of CaCl2(s) in 150.0 g of water in a calorimeter (as shown) at 22.4 °C causes the…

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Q: 4. How much will the temperature of a cup (180 g) of coffee at 95 °C be reduced when a spoon…

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Q: ₂0 and 0.444 J/g.°C for Fe. eat capacity of the calorimeter = 3/°C

A: The calorimetry rule says, Heat lost by iron = Heat gained by calorimeter + water Heat lost=mc∆T…

Q: A chemist placed a 1.195 g sample of fuel in a bomb calorimeter which was immersed into 2.00 L of…

A: The mass of the fuel sample is = 1.195 g The increase in the temperature of the water is = 20.1oC to…

Q: A calorimeter contained 65.0 g of water at 16.71°C. A 108-g sample of iron at 64.48°C was placed in…

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Q: A sample of 24.9 g of ammonium nitrate, NH4N03, was dissolved in 121.3g of water in a coffee cup…

A: Mass of sample (ammonium nitrate) = 24.9 gram Mass of water = 121.3 gram Specific heat of solution =…

Q: When 10.6 g NaOH dissolves in 232 g of water in a coffee-cup calorimeter, ΔH = −42.6 kJ/mol. The…

A: To calculate the final temperature of a solution of sodium chloride in water.

Q: 3. When a student mixes 50 mL of 1.0 M HCI and 50 mL of 1.0M NaOH in a coffee- cup calorimeter, the…

A: given - 50 ml of 0.1 HCl  50 ml. of 0.1 NaOH density = 1 g/ml specific heat = s = 4.18 J/g K initial…

Q: A certain substance is dissolved in water inside of a coffee cup calorimeter. If the temperature of…

A: Since the temperature of the contents inside the calorimeter is increased, heat is absorbed by the…

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: 20 g of chocolate was combusted completely in a calorimeter with 100 mL of water inside. The…

A: Given data is Mass of chocolate combusted = 20 g Volume of water  in a calorimeter = 100 mL  The…

Q: In a coffee-cup calorimeter, 120.0 mL of 1.1 M NaOH and 120.0 mL of 1.1 M HCl are mixed. Both…

A: Given, In a coffee-cup calorimeter, 120.0 mL of 1.1 M NaOH and 120.0 mL of 1.1 M HCl are mixed. Both…

Q: A 479.00 sample of an unknown metal at 96.75°C is placed in a calorimeter containing 139.00 mL of…

A: Given: Mass of an unknown metal = 479 g Volume of water = 139 mL Density of water = 1 g/mL Mass of…

Q: A 24.6 g sample of a metal is heated to 110.0°C and then placed in a coffee cup calorimeter…

A: Answer: This is the question based on energy conservation, one object is losing the heat and other…

Q: A 148.9-g sample of a metal at 74.6°C is added to 148.9 g   at 14.7°C. The temperature of the water…

A: The mass of the metal is .The initial temperature for metal is .The final temperature for metal is…

Q: A 4.35 g sample of an unknown salt (MM = 116.82 g/mol) is dissolved in 150.00 g water in a coffee…

A: The heat released or absorbed (q) when the temperature of any substance is raised is calculated as:…

Q: A 1.36 g sample of a soluble salt dissolves in 23 mL of water in a coffee cup calorimeter.  When the…

A: Given: Mass of sample               = 1.36 g Volume of water              = 23 mL Decrease in…

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…

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Q: When 9.85 grams of potassium hydroxide (KOH) are dissolved in 150.0 grams of water at 25.0 °C in an…

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Q: A 4.77 g sample of an unknown salt (MM = 116.82 g/mol) is dissolved in 150.00 g water in a coffee…

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Q: Calculate the heat capacity (in J/C) of 20.0 mL of room temp. water given that the specific heat…

A: Heat capacity of a material for a particular mass = Specific heat capacity  mass of the material

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: In a coffee-cup calorimeter, 100 mL of 1.0 M NaOH and 100.0 mL of 1.0 M HCI are mixed. Both…

A: Molarity of NaOH = 1.0 M  Volume of NaOH solution = 100.0 mL = 0.100 L  Molarity of HCl = 1.0 M…

Q: If 0.066 mol of hydrochloric acid (HCl)  is mixed with 0.066 mol of sodium hydroxide (NaOH)  in a…

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Q: In a coffee-cup calorimeter, 110.0 mL of 1.1 M NaOH and 110.0 mL of 1.1 M HCl are mixed. Both…

A:

Q: A student heats 84.17 mL of water to 95.27°C using a hot plate. The heated water is added to a…

A: During calorimetry, the heat lost by the hot water (qhot) will be the sum of heat energy gained by…

Q: How many milliliters of water at 31 °C with a density of 1.00 g/mL must be mixed with 95.0 mL (about…

A: Given: Initial temperature of water=31 degree celciusdensity =1.00g/mlvolume of coffee(m2)=95…

Q: A student mixes 67.0 mL of a 2.01 M sodium hydroxide solution with 22.4 mL of 6.45 M hydrochloric g…

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Q: coffee-cup calorimeter, 100.0 mL of 1.1 M    NaOH and 100.0 mL of 1.1 M   HCI are mixed. Both…

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Q: A chemist dissolved an 10.8-g sample of KOH in 100.0 grams of water in a coffee cup calorimeter.…

A: Here we are required to find the enthalpy of solution of KOH in the unit of kJ/mol

Q: 3. When 0.118 g of Zn(s) is combined with enough HCl to make 52.3 mL of solution in a coffee-cup…

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Q: A piece of lead (mass = 2.85 g) at 10.3 C is placed in a Styrofoam coffee cup containing 7.55 mL of…

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