Suppose that 118 mL of water changes in temperature from 49.38°C to 33.12°C. What is qwater in kJ? (Assume that the density of water is 1.0 g/mL and that the heat capacity of water is 4.2 J/(g-°C). Report your answer to three decimal places and ignore significant figures.)

Q: If 89 J of heat is added to a pure gold coin with a mass of 20 g. what is the temperature change?…

A: Given question of values = -gold coin mass =20gm . Represent of mass = m  -specific heat capacity of…

Q: A backpacker wants to carry enough fuel to heat 2.0kg of water from 25 degrees C to 100.0 degrees C.…

A: Given,Mass of water = 2.0kgInitial temperature = 25 degree CelsiusFinal temperature = 100 degree…

Q: On which temperature scale (F, C, or K) does 1 degree represent the smallest change in temperature?

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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 chemist carefully measures the amount of heat needed to raise the temperature of a 480.0 mg sample…

A: Given: Mass of mercury=480.0 mg=0.4800 g Temperature change, ∆T=(48.8+273)-(35.2+273)=13.6 K Heat…

Q: A certain oil used in industrial transformers has a density of 1.280 g/mL and a specific heat of…

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Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 385.0 g sample…

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Q: How much heat, in units of Joules, is needed to warm 667.7 g of copper from 17 °C to 59 °C? The…

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Q: How many milliliters of water at 23 °C with a density of 1.00 g/mL must be mixed with 180 mL of…

A: Heat flow from high temperature to low temperature

Q: A Chemistry 1A student drops 65.0 grams of copper (cp = 0.385 J/g⋅°C) with an original temperature…

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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: Suppose that 311 mL of water changes in temperature from 21.54°C to 45.71°C. What is qrxn in joules?…

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Q: A certain system consists of 5 sugar cubes, which are added to 25mL of distilled water in a glass.…

A: Endothermic process is defined as the process in which heat is absorbed from the environment. The…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 749.0 mg sample…

A: Given: The mass of the sample = 749.0 mg The initial temperature of the sample = -3.1 oC The final…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 562.0g sample…

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Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 282.0 g sample…

A: We know that , amount of heat (Q) -  Q = m.s.∆t

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 748.0 mg sample…

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Q: Suppose that 384 mL of water changes in temperature from 63.73°C to 58.19°C. What is qwater in…

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Q: in kJ? Suppose that 441 mL of water changes in temperature from 33.16°C to 58.2°C. What is (Assume…

A: Given that,  Volume of water taken in calorimeter = 441 mL Mass of water m = 441 g Since, density of…

Q: The specific heat capacity of liquid bromine is 0.226 J/g-°C. How much heat (in Joules) is required…

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Q: A typical recipe for a hot toddy (a drink often used as a cold remedy) is to mix hot water…

A: The amount of energy absorbed by 16 oz. of water is 33 kcal. The amount of hot water mixed with 1.5…

Q: How many milliliters of water at 23 °C with a density of 1.00 g/mL must be mixed with 180 mL of…

A: Since the density of coffee is 1.0 g/ml.Mass of 180ml coffee is 180 g.If the final Temperature is…

Q: Suppose that 162 mL of water changes in temperature from 68.36°C to 76.34°C. What is qxn in joules?…

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Q: The power ratings of microwave ovens are listed in watts (1 watt =1 J/s). How many seconds will it…

A: Specific heat capacity is defined as the quantity of heat absorbed by 1 g of substance to raise the…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 339.0 g sample…

A: Specific heat capacity is the amount of heat that is required to rise a temperature of 1 kg…

Q: Suppose that 142 mL of water changes in temperature from 55.39°C to 58.68°C. What is qrxn in (Assume…

A: qrxn = -(4.812 kJ/ degree Celsius) (1.85 degree Celsius) = - 8.90 KJ per. Q= transfer of energy in…

Q: What is the specific heat capacity of iron (in J/(g°C)), if 51.5 J is required to raise the…

A: We will calculate specific heat

Q: How much heat, in kJ, does it take to heat a 2 kg block of copper (specific heat capacity = 0.385…

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Q: 1.Neon, a gaseous element used in neon signs, has a melting point of -248.6 °C and a boiling point…

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

Q: A piece of metal weighing 59.6 g with a specific heat of 0.59 Jg1°C-! at 1197.5 °C is dunked into a…

A: When the hot metal is dunked into the water, the heat is released by the metal and the equal heat is…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 663.0 mg sample…

A: Given Mass = 663 mg = 663 x 10-3 g Heat = 12.8 J T1 = 0°C T2 = 21.4°C

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 hot tub is filled with 570 gal of watera. What is the volume of water, in liters, in the tub?b.…

A: a.The volume of water in liters is given by

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 446.0 mg sample…

A: Given, mass of a sample,m = 446.0 mg = 446.0×10-3 g The temperature rise from T1 = -3.8 oC  T2 =…

Q: Suppose that 140 mL of water changes in temperature from 52.11°C to 37.47°C. What is qwater in kJ?…

A: Applying formula of heat  Q= mc∆t

Q: If 52 J of heat is added to an aluminum can with a mass of 29.1 g, what is the temperature change?…

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Q: The specific heat capacity of liquid bromine is 0.226 J/g-°C. How much heat (in Joules) is required…

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Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 1.79 kg sample…

A: Answer is given below

Q: When 2.00 kg of water vapor cools to a temperature of 373 K, the value of q = -930 kJ. If the…

A: For this question Heat (q) = m*s*dT...............(1) where, q = -930kJ = -930000 J m = mass = 2.00…

Q: Calculate the amount of heat required to raise the temperature of 245.0 gg (approximately 1 cup) of…

A: Given data,

Q: Expressing amounts of energy in different energy units is necessary to solve many chemistry…

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Q: If the specific heat of a ceramic cup is 0.583 J/(g °C), how much heat (in J) is required to raise…

A: To calculate heat energy, we have to use the formula : Q = m*s*Δt        ------(1) where, Q is heat…

Q: An adult eats food whose nutritional energy totals approximately 2200 Cal per day. The adult burns…

A: The amount of energy which is accumulated as fat in one day is 2200cal – 2000cal = 200cal.  The…

Q: How many Joules of energy are required to heat a 67.5 gram piece of tin (cp = 0.22 J/g⋅⋅oC) from…

A: Given: Mass of tin = 67.5 g Initial temperature of tin = 20.0 oC Final temperature of tin = 30.0 oC…

Q: Suppose that 880 mL of water changes in temperature from 20.20°C to 31.3°C. What is qwater in kJ?…

A: Interpretation: The heat gained (qwater) by water is to be calculated. Concept Introduction: Heat…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 399.0 g sample…

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Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 251.0 mg sample…

A: m = 251 mg = 0.251 g T1 = -9.6 oC T2 = 6.1 oC  q = 1.77 J C = ? ΔT = T2 - T1 = (6.1 + 273) - (-9.6 +…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 191.0 g sample…

A: Thermochemistry is branch of chemistry in which we deal with amount of heat evolved or absorbed by…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 284.0 mg sample…

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Q: chemist carefully measures the amount of heat needed to raise the temperature of a 312.0 g sample of…

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