What will be the final temperature of a 430.−g sample of water, initially at 12.0°C, after 55.6 kJ have been added to it?   A student mixes 92.9 g of water at 89.3°C with 35.1 g of water at 23.9°C in an insulated flask. What is the final temperature of the combined water?

Q: A gas expands and does P-V work on the surroundings equal to 294 J. At the same time, it absorbs 246…

A: The first law of thermodynamics states that the change in internal energy of a system equals the net…

Q: A 33.4−g sample of an alloy at 93.00°C is placed into 50.0 g of water at 22.00°C in an insulated…

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Q: Consider the compound NH4Cl, ammonium chloride, having a molar mass of 53.491 g/mol. Nicole weighs…

A: Specific heat- It is the amount of heat required to raise the temperature of 1g of substance by 10…

Q: A small statue, made of an unknown metal, weighs 700 g. This statue at room temperature (27.00° C)…

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Q: A 31.6 g wafer of pure gold initially at 69.9 ∘C is submerged into 63.4 g of water at 27.2 ∘C in an…

A: The problem is related to specific heat. It relates to heat, mass of a substance and change in…

Q: A 55 kg block of metal has an original temperature of 15.0°C and a specific heat capacity of 0.45…

A: Specific heat capacity (C) =       Q                                                       m ( T2…

Q: A piece of silver of mass 362g has a heat capacity of 85.7 J/degrees Celsius. What is the specific…

A: Specific heat capacity is defined as the amount of heat required to change the temperature of 1 gram…

Q: A 10 g piece of copper at 145 oC is placed in 150 mL of water. The initial temperature of water is…

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Q: A 31.1 g wafer of pure gold initially at 69.3 degrees C is submerged into 64.2 g of water at 27.8…

A: Given,Mass of water (H2O) = 64.2 gTemperature of water (H2O) = 27.8°CMass of gold (Au) = 31.1…

Q: A 60.0g piece of Zn at 20.0 degrees celsius is dropped into 200.0g of water at 100.0 degrees…

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Q: A coffee-cup calorimeter contains 50.0 g of water at 60.51°C. A 12.4 g piece of graphite at 24.21°C…

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Q: The propane fuel (C3H8) used in gas barbeques burns accordingto a thermochemical equation:C3H8(g) +…

A: The reaction is carried out in more than one step then the sum of all the steps gives the overall…

Q: a chemistry experiment, 4.24 g of lithium chloride is dissolved in 100 mL of water at an initial…

A: The molar heat of solution is also called as a molar enthalpy of solution. This molar enthalpy of…

Q: 1. A sample of metal with mass 250.0 g is heated to 130.0 ℃ and dropped into 425 g of water at 26.0…

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Q: Pls help ASAP

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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 (about…

A: The heat transferred by a substance is determined as the equation:

Q: A sample of water of unknown mass undergoes a temperature change from 68.09°C to 72.61°C with a…

A: Given, a sample of water of unknown mass. undergoes a temperature change from 68.09°C to 72.61°Cwith…

Q: 1.A 125 - g sample of cold water and a 283-a sample of hot water are mixed in an insulated thermos…

A: “Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: A 240.0-g sample of water at 25.0°C is mixed with 120.9 g of a certain metal at 100.0°C. After…

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Q: 1) Glucose, C6H12O6 (MM = 180 g/mol), is converted into ethyl alcohol, C2H5OH(l) in the fermentation…

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Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 1.03kg sample…

A: Mass of C6H4F2 = 1.03 kg = 1030 g Molecular weight of C6H4F2 = 114.09 g/mol Number of moles of…

Q: A piece of metal weighing 57.3 g is heated to a temperature of 88.0°C and is then immersed in 155 g…

A: Since, heat energy = m.s.∆T        where m = mass                 s   = specific heat capacity…

Q: We submerge a 25.0 g block of an unknown metal, initially at 97.8 °C, into 25.0 g of water initially…

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Q: 11. A 45.0 g block of iron that has an initial temperature of 340 °C and a 45.0 g block of gold that…

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Q: How much more energy (in joules) is needed to heat 200.0g of water by 10.0 celcius? The heat…

A: When the heat is transferred to a system the temperature of the system rises. The increase in energy…

Q: Suppose two 45-g ice cubes are added to a glass containing 500 cm3 of cola at 20,0°C. When thermal…

A: · Two 45 grams of ice cubes are added to a glass containing 500 cm3 of cola at 20.0°C· When thermal…

Q: THERMODYNAMICS: The combustion of 1.00 mol of glucose (C6H1206) liberates 2820 kJ of heat. If 1.77 g…

A: We will first calculate heat released by given amount of glucose, then calculate heat capacity.

Q: Is the dissolving of ammonium chloride an endothermic or exothermic process?

A: From the above data we are supposed to find whether it is a endothermic or an exothermic reaction…

Q: A 26.1−g sample of an alloy at 93.00°C is placed into 50.0 g of water at 22.00°C in an insulated…

A: Given: Mass of alloy = 26.1 g. Initial temperature of alloy = 93.00 oC Mass of water = 50.0 g…

Q: If a substance has a specific heat capacity of 1.0 J/g· oC and a density of 2.0 g/mL, how much…

A: We know that the relationship between heat and temperature connected with the mass and specific…

Q: What mass of natural gas (CH4) must burn to emit 267KJ of heat? CH4 (g) + 2 O2 (g) -------> CO2…

A: Given, The mass of natural gas (CH4) must burn to emit 267KJ of heat is: CH4 (g) + 2 O2 (g)…

Q: In an experiment, 28.0 g of metal was heated to 98.0°C and then quickly transferred to 150.0 g of…

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Q: When 7 grams of salicylic acid, C7H6O3, burns in a bomb calorimeter, the temperature increases from…

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Q: 3. A sample of aluminum with a mass of 53.4 g is initially at 156 ° C. What is the temperature of…

A: "Since you have asked multiple question, I will solve the first question for you. If you want any…

Q: Find the heat (in J) transferred to the water, qwater, during the process NH4Cl (s) --> NH4Cl (aq).…

A: From the above data we are supposed to calculate the value of heat trasnferred in J

Q: Predict the total quantity of heat that would be required if you wanted to prepare a cup of instant…

A: Volume of cold water is 200 ml and density is 1.0 g/mL.Specific heat of water is 4.18 J.g.-1.°C-1…

Q: A 837837 g copper pan is removed from the stove at a temperature of 150 °C. It is then stacked on…

A: Answer Final temperature         = 193.52 K (or) -79.63 °C Formula…

Q: An air compressor used with a paint sprayer does 66.0  J of work pumping air into a tank. Warmed by…

A: Given, Work done, W = 66.0J. Heat transferred to surroundings, Q = 38.0J. As heat is released, it is…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 1.27kg sample…

A: The number of moles of a substance (n) is evaluated by relating the mass of the substance to its…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 286.0 g sample…

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Q: A 31.1-g wafer of pure gold, initially at 69.3 °C, is submerged into 64.2 g of water at 27.8 °C in…

A: Given: Mass of pure gold wafer, mAu = 31.1 g Initial temperature of gold, TAu = 69.3°°C Mass of…

Q: A 150.0-g sample of a metal at 75.0°C is added to 150.0 g H20 at 15.0°C. The temperature of the…

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Q: How much work is done on a system that the internal energy change of 105J and heat absorbed of 78J

A: From first Law of Thermodynamics , the total change in internal energy of the system can be…

Q: 1. When a 6.50 g sample of solid sodium hydroxide dissolves in 100.0 g of water in a coffee- cup…

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Q: To determine whether a shiny gold-colored rock is actually gold, a chemistry student decides to…

A: Answer Part-B:- Mass (m) = 4.7 g Initial T1  = 25 °C = 298 K final T2 = 57 °C = 330 K From the…

Q: The air within a piston equipped with a cylinder absorbs 545 J of heat and expands from an initial…

A: The work done against a constant external pressure is given by  W = -Pext∆V  Pext = constant…

Q: If 30.0 g H20 at 85.0°C is mixed in a coffee-cup calorimeter with 15.0 g H20 at 20.0°C, what is the…

A: Heat produced or absorbed by water = mass of water x specific heat of water x temperature difference

Q: A gas expands and does 25.6 J of work on the surroundings. At the same time, the gas absorbs 89.6 J…

A: Solution W = 25.6J Since work is done by the system on the surrounding q = 89.6J Heat absorbed that…