5.40 A 50.75-g sample of water at 75.6°C is added to asample of water at 24.1°C in a constant-pressurecalorimeter. If the final temperature of the combinedwater is 39.4°C and the heat capacity of the calorimeteris 26.3 J/°C, calculate the mass of the water originallyin the calorimeter.

Q: When 1.006 grams of sucrose (Molar mass 342.3 g/mol) is burned in a bomb calorimeter, the…

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Q: The heat of combustion of acetylene, C2H2(g), at 25oC is -1299kJ/mol. At this temperature, ^Hof…

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Q: When 3.93 grams of lactic acid, C3H6O3(s), are burned in a bomb calorimeter that has a total heat…

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Q: capacity of a newly developed alloy of nickel metal,given the following

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Q: A quantity of 1.435 g of naphthalene (C1oHe), a pungent-smelling substance used in moth repellents,…

A: Molecular weight of naphthalene = 120+8 = 128 gm/mol  So, 1.435 gm naphthalene = (1.435/128) mol =…

Q: Solid carbon–C(s, graphite), gaseous hydrogen–H2(g), and thesugar glucose–C6H12O6(s) are all burned…

A: The standard reaction enthalpy is the sum of the standard enthalpies of the intermediate reactions…

Q: A gas is confined to a cylinder under constant atmosphericpressure, as illustrated in Figure 5.4.…

A: Given: Heat absorbed by the system = 824 J Work done on the system       = 0.65 kJ

Q: 5. Write a balanced thermochemical equation for the heat of combustion of gaseous ethylene, C2H4,…

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Q: A 8.0 g sample of aniline (C6H5NH2, molar mass = 93.13 g/mol) was combusted in a bomb calorimeter…

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Q: In the laboratory a "cefee cup calerimer, or constant pressure calorimeter, in frequently und to…

A: Mass of Zn = MZn= 69.1 gInitial temperature of Zn = Tzn = 98.40°CMass of water = M = 82.88 gInitial…

Q: When 1.00 L of 2.00 M Na SO, solution at 30.0°C is added to 2.00 L of 0.750 M Ba(NO), solu- tion at…

A: Calculate the enthaply change per mole of BaSO4 formed.To determine the number of moles of BaSO4…

Q: acity for the calorimeter Ccal by a calibration technique involving mixing hot and room-temperature…

A: Consider two 50.0 mL volumes of water, one at 20.0 °C and the other at 100.0 °C. We have to…

Q: A gas is confined to a cylinder under constant atmosphericpressure, as illustrated in Figure 5.4.…

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Q: Suppose 0.562 g of graphiteis place in bomb calorimeter with excess of oxygenat 25.00 °C and 1 atm…

A: Given : Mass of C reacting = 0.562 g Heat capacity of calorimeter = 20.70 KJ/oC Initial temperature…

Q: Chlorine trifluoride, CIF3, is a toxic, intensely reactive gas. It was used in Word War II to make…

A: The enthalpy of a reaction is given by ; ∆Hrxn=n∑∆Hproduct-n∑∆Hreactant

Q: When 28.3 mL of 0.500 M H,SO, is added to 28.3 mL of 1.00 M KOH in a coffee-cup calorimeter at…

A: The amount of heat absorbed (or released) by a fixed amount of a substance to change its temperature…

Q: A 31.55 g iron rod, initially at 22.7 °C, is submerged into an unknown mass of water at 63.2 °C, in…

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Q: When 1.866 grams of sucrose (Molar mass 342.3 g/mol) is burned in a bomb calorimeter, the…

A: Given : Mass of sucrose i.e C12H22O11 = 1.866 g Molar mass of C12H22O11 = 342.3 g/mol Initial…

Q: A chemist burns 0.8650 g of graphite (a form of carbon) in a new bomb calorimeter, and CO2 forms. If…

A: Specific Heat: It can be defined as the amount of heat required to raise the temperature of a body…

Q: during the combustion of 200 grams of a gaseous mixture of CO and SO2, 1213.75 kJ of heat are…

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Q: In the following experiment, a coffee-cup calorimeter containing 100 g of H20 is used. The initial…

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Q: At constant volume, the heat of combustion of a particular compound is - 3800kJ / m * o * l . When…

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Q: A quantity of 1.435 g of naphthalene (C10H8), a pungent-smelling substanceused in moth repellents,…

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Q: when 1.50 L of 1.00 M sodium sulfate at 30.0° C is added to 1.50 L of 1.00 M barium nitrate solution…

A: The balanced chemical equation for the sodium sulfate and barium nitrate can be written as: The…

Q: A gas is expanding against a constant pressure of 3 atm from a pressure of 18.0 to 23.0 L and…

A: Here we are required to find the change in the internal energy of the system.

Q: A gas is confined to a cylinder under constant atmosphericpressure, as illustrated in Figure 5.4.…

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Q: In order to determine the heat capacity of their latest phone, CrabappleTM engineers cool the phone…

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Q: A piece of zinc at 20.0°C that weighs 60.0 g is droppedinto 200.0 g water at 100.0°C. The specific…

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Q: Ethanol 1C2H5OH2 is blended with gasoline as an automobilefuel. (a) Write a balanced equation for…

A: a.

Q: When 2.55 g of sodium hydroxide (Mwt. = 40g/mol) is dissolved in 81.0 g of water in a coffee cup…

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Q: Three metal cylinders – one piece of iron, one piece of copper, and one piece ofaluminum – are…

A: Since heat capacity = specific heat capacity X mass  Specific heat capacities of metal are (using…

Q: Image attached

A: Given, T1 = 18C°T2 = 69C°∆T=(T2-T1)=(69-18)=51C° The heat required(q) = 672 J Calculating the heat…

Q: When 28.4 mL of 0.500 M H,SO, is added to 28.4 mL of 1.00 M KOH in a coffee-cup calorimeter at…

A: Volume of H2SO4 present = 28.4 mL Molarity of H2SO4 present = 0.500M Volume of KOH present = 28.4 mL…

Q: Under normal atmospheric pressure, nitrogen gas (and condenses) at -196°C. When 7.7 g of nitrogen…

A: Given that : Boiling point of nitrogen = -196°CMass of nitrogen = 7.7 gInitial temperature of…

Q: When 1.091 grams of sucrose (Molar mass 342.3 g/mol) is burned in a bomb calorimeter, the…

A: Mass of sucrose is = 1.091 g The molar mass of sucrose is = 342.3 g/mol An increase in the…

Q: The complete combustion of ethanol, C2H5OH1l2, to formH2O1g2 and CO21g2 at constant pressure…

A: The explanation and the diagram is as given below:

Q: If 330. Grams of an unknown substance at 200 oC are placed in a calorimeter filled with 2000. Grams…

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Q: In the following experiment, a coffee-cup calorimeter containing 100 g of H20 is used. The initial…

A: Determination of heat released by dissolution of CaCl2 as; Heat released by dissolution = 4 g110.986…

Q: In order to determine the heat capacity of their latest phone, CrabappleTM engineers cool the phone…

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Q: In a coffee-cup calorimeter, 100.0 mL of 1.0 M NaOH and 100.0 mL of 1.0 M HCI aremixed. Both…

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Q: A gas is allowed to expand, at constant temperature, from a volume of 1.0 L to 10.1 L against an…

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Q: Suppose 0.562 g of graphite is place in bomb calorimeter with excess of oxygen at 25.00 °C and 1 atm…

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Q: What mass of methane must be burned in order to liberate 12705 kJ of heat? Standard Enthalpies of…

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Q: When 1.151 grams of sucrose (Molar mass 342.3 g/mol) is burned in a bomb calorimeter, the…

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Q: 13.00 g of Compound X with molecular formula C,H, are burned in a constant-pressure calorimeter…

A: Mass of Compound X = 13 g Molar mass of C5H6­ = 66.1 g/mol Mass of water = 20 kg or 20,000 g All the…

Q: ITY A lead (Pb) pellet having a mass of 26.47 g at 89.98°C was placed in a constant-pressure…

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Q: Aluminum reacts with iron(III) oxide to yield aluminum oxide and iron. Calculate the heat given off…

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Q: Aluminum mass of metal 50.820g temp of boiling water 98.1 C volume of water in cup 50mL temp of…

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Q: In a coffee cup calorimeter, 50.0 mL of 0.113 MAGNO3 and 50.0 mL of 0.113 M HBr are mixed. The…

A: We have coffee cup calorimeter, 50.0 mL of 0.113 M AgNO3 and 50.0 mL of 0.113 M HBr are mixed.…