When 1 mole of HCI(g) reacts with NH3(g) to form NH CI(s) according to the following equation, 176 kJ of energy are evolved. HCI(g) + NH3(g) NH CI(s) Is this reaction endothermic or exothermic? What is the value of q? kJ

Q: In an insulated bomb calorimeter, 0.568 g of solid citric acid (C6H8O7, molar mass 192.12 g) was…

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Q: What is the specific heat capacity of an unknown material that has a mass of 81 grams and that…

A: The given data contains, mass = 81 g. heat = 2702 J.

Q: Isooctane (C8H18; d= 0.692 g/mL) is used as the fuel during a test of a new automobile engine. How…

A: The energy released in the combustion of a hydrocarbon in a particular reaction is calculated by…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 0.73 kg sample…

A: Heat capacity is defined as the amount of heat required to change the temperature of the substance…

Q: how much energy in kilojoules is produced when 1.00 g of propane is completely combusted?

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Q: In the laboratory a student burns a 0.777-g sample of isophthalic acid (C,H,0) in a bomb calorimeter…

A: Given - Molar heat capacity of combustion = -3203 KJ/ mol Mass of isophthalic acid = 0.777g Initial…

Q: Calculate the value of ΔE for a system that loses 50 J of heat and has 150 J of work performed on it…

A: Given: The system loses 50 J of heat. And the work done on the system = 150 J.

Q: The following thermochemical equation is for the reaction of carbon monoxide(g) with chlorine(g) to…

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Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 281.0 mg sample…

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Q: When a solid dissolves in water, heat may be evolved or absorbed. The heat of dissolution…

A: The enthalpy of dissolution can be calculated from the following formula. ∆Hdissolution=Qreactionno…

Q: When 2 moles of NH2(g) react with O2(g) to form N,O(g) and H,0(1) according to the following…

A: A reaction is said to be exothermic if the heat is released or evolved during the reaction.  A…

Q: Calcium metal reacts with acid in solution according to the following reaction: Ca(s) + 2H†(aq) →…

A: Given: Mass of Ca reacting = 0.1437 g. Mass of solution = 150.0 g. Initial temperature = 21.80 oC…

Q: When a solid dissolves in water, heat may be evolved or absorbed. The heat of dissolution…

A: Given data, Mass of K2SO4 = 5.25 g Mass of water = 115.60 g Initial temperature = 23.87oC final…

Q: Calculate the energy in joules to heat a cube of aluminum with a volume of 12.0 cm^3 from 15 Celsius…

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Q: Silane, SiH4, burns according to the reaction, SiH4 + 2O2 → SiO2 + 2H2O, with ΔH° = –1429 kJ. How…

A: To solve this problem we will use the given thermochemical equation .

Q: When a solid dissolves in water, heat may be evolved or absorbed. The heat of dissolution…

A: Mass of water = 107.20g Mass of K2SO4 = 7.63 Molar mass of K2SO4 = 174.27 g/mol Mass of solution =…

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: The specific heat of a certain type of cooking oil is 1.75 J/(g-°C). How much heat energy is needed…

A: Given: Specific heat of oil = 1.75 J/goC Mass of oil = 2.92 kg Initial temperature = 23oC Final…

Q: A chemist measures the energy change AH during the following reaction: 2 Fe,03(s) → 4 FeO(5)+O,(g)…

A: The given mass of Fe2O3 is 11.7 g. The given reaction is, 2Fe2O3s→4FeOs+O2g         ∆H=560 kJ

Q: A chemist measures the energy change AH during the following reaction: 2 Fe,O3(s) → 4 Fe(s)+O,(9)…

A: For the given reaction, we need to calculate the amount of heat absorbed/released.

Q: A piece of aluminum (which has a specific capacity of 0.891 J/"C-g} is heated to 82.4°C and dropped…

A: It is given that aluminium has an initial temperature of 82.4°C and is dropped in 76.1 g of water…

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: Im having trouble finding J*mol^-1*K^-1.

A: The given temperature in Kelvin scale can be written as follows,-9oC = 264.15 K11.3oC = 284.45…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 1.51 kg sample…

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Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 0.54 kg sample…

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Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 192.0 g sample…

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Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 140.0 mg sample…

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Q: Combustion reactions involve reacting a substance with oxygen When compounds containing carbon and…

A: The reaction taking place is given as, => C2H2 (g) + 2 H2 (g) ------> C2H6 (g) Given : Heat of…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 0.19 kg sample…

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Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 1.38 kg sample…

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Q: 6. When a 3.80 g sample of liquid octane (C;H18) burns in a bomb calorimeter, the temperature of the…

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Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 412.0 mg sample…

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Q: When 1 mole of CO(g) reacts with Cl2(g) to form COCl2(g) according to the following equation, 108 kJ…

A: Exothermic reaction-the reaction in which heat is given out or released called as exothermic…

Q: Silane, SiH4, burns according to the reaction, SiH4 + 2O2 → SiO2 + 2H2O, with ΔH° = –1429 kJ. How…

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Q: A gas expands and does work on the surroundings equal to 3.55 L atm. At the same time, it releases…

A: Energy is calculated as follows

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 net heat absorbed by water will be equal to the heat released by coffee. Determination of heat…

Q: (b) In one experiment, a 25 g sample of an alloy was heated to a certain temperature. The heated…

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Q: Both glucose and fructose are simple sugars with the same molecular formula of C6H12 O6 . Sucrose…

A: For part a:

Q: A chemist measures the energy change AH during the following reaction: 2 Fe,03(5) → 4 FeO(s)+O2(g)…

A: Given: ∆H=560 kJ The molar mass of Fe2O3= 159.69 g/mol Solution: For the given reaction,…

Q: The combustion of propane gas (C3H8; molar mass = 44.09 g/mol) occurs according to the following…

A: The balanced Chemical equation for combustion of propane gas given in question is - C3H8(g)  +…

Q: When 2 moles of CO(g) react with NO(g) to form CO2(g) and N2(g) according to the following equation,…

A: Given that 747 kJ of energy are evolved in the reaction.

Q: 9.53 Using these reactions, find the standard enthalpy change for the formation of 1 mol of PbO(s)…

A: From the given two reactions, firstly we have to find out the reaction of synthesis of PbO. From…

Q: Suppose that the total mass of the reactants in a chemical reaction was 100.00000 g. How many…

A: Given that, the mass of the reactants is mR = 100.000 g. The mass of the products is mP = 99.999 g.…

Q: If a system is given 60 J of heat and lifts the lid of the container 3 m with a force of 5 N, what…

A: Applying first law of thermodynamics and work done by system  ∆U = Q-w  &  W= F×r

Q: The specific heat of a certain type of cooking oil is 1.75 J/(g-°C). How much heat energy is needed…

A:

Q: Silane, SiH4, burns according to the reaction, SiH4 + 2O2 → SiO2 + 2H2O, with ΔH° = –1429 kJ. How…

A: Mass of Silane (SiH4) is 28.086g/mol + 4 x 1.008 g/mol  So Mass of Silane = 32.094g

Q: 8. The oxidation of the sugar glucose, C6H1206 is described by the following equation: C6 H12 O6 (s)…

A: The oxidation of glucose can be described by following reaction: C6H12O6 (s)+ 6O2 (g) →6CO2 (g) +…

Q: Calculate the energy content (in Joules) of a 1.00 g of food product that is placed inside a…

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Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 639.0 g sample…

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