The reaction of hydrogen chloride(g) with oxygen(g) to form water(g) and chlorine(g) proceeds as follows:   4 HCl(g) + O2(g) -----> 2 H2O(g) + 2 Cl2(g)   When 13.7 grams of HCl(g) react with sufficient O2(g) , 10.7 kJ of energy are evolved . What is the value of H for the chemical equation given?   ΔHrxn =  kJ

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: How much heat energy is required to change the temperature of 50.0 grams of water from 23°C to 105°

A: Formula for calculating heat energy =  q =mC∆T

Q: The net change in the multistep biochemical process of photosynthesis is that CO₂ and H₂O form…

A: Biochemical processes refer to the chemical processes which occur in living organisms. It gives…

Q: It takes 57.5 J of energy to raise the temperature of 115.4 g of mercury from 23.61°C to 27.17°C.…

A: We know that the energy supplied is equal to the internal energy change of the molecules.

Q: Part A A cylinder equipped with a piston expands against an external pressure of 1.43 atm . If the…

A: Given data :  Pressure = 1.43 atm  Initial volume , V1 = 0.480 L  Final volume , V2 = 1.215 L

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: A sample of 1.05 g NH,NO, (80.05 g mol") decomposes in a bomb calorimeter with a heat capacity of…

A: Given that : The mass of NH4NO3 = 1.05 g The molar mass of NH4NO3 is 80.05 g/mol The heat capacity…

Q: A chemist measures the energy change AH during the following reaction: 2 NH3(g) – N,(g)+3H,(g)…

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Q: How much energy is needed to change the temperature of 275 grams of lead from 10.0°C to 95.0°C?

A: The energy that is needed to change the temperature of 275 grams of lead from 10.0°C to 95.0°C is to…

Q: 1. Calculate the joules of energy required to heat 454.3g of water from 5.4 °C to 98.6 °C. 2. What…

A: Given: Mass of water = 454.3 g  Initial temperature = 5.4°C Final temperature = 98.6°C

Q: 1. How much energy is required to raise the temperature of 37.8 g of silver from 19.2°C to 63.5°C?

A: Solution 1:- In order to be able to determine how much heat is required to increase the temperature…

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: 2AF(g)+ 0,(g)→ A,0(g) + F0(g) 2AF,(g)+20,(g)→ Cl,0(g) +3F,0(g) 2F,(g) + 0,(9)-2F,0(g) AH = 167.4kJ…

A: Interpretation -  To determine the enthalpy change  (∆H ) for the final reaction and also draw…

Q: The heat capacity of the bomb calorimeter was determined by burning 6.79 g methane (energy of…

A: Given: Mass of methane= 6.79 g Energy of combustion = -802 kJ/mole CH4 Change in tempertaure=10.8°C.…

Q: 23.  If a reaction produces 1.506 kJ of heat, which is trapped in 30.0 g of water initially at 26.5…

A: Calorimeters play a major role in estimating reaction's heat with the known specific heat of…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 1.36 kg sample…

A: Given: Mass of sampleC4H6O2=1.36 kg T1=48.6οC T2=61.7οC Q=2.79×104 J To find: Molar heat capacity…

Q: A 6.55 g sample of aniline (CeH,NH2, molar mass = 93.13 g/mol) was combusted in a bomb calorimeter.…

A: Answer

Q: A bomb calorimeter, or a constant volume calorimeter, is a device often used to determine the heat…

A: The heat of a substance is given as :

Q: If 246,000 J of energy are required to raise 10 kg of sodium from 15°C to 35°C, what is the specific…

A: Given :-  q = 246000 J  Mass of sodium (m) = 10 kg  Initial temperature = 15°C  Final temperature =…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 1.45 kg sample…

A:

Q: A bomb calorimeter, or a constant volume calorimeter, is a device often used to determine the heat…

A: Mass of anthracene (C14H10) = 0.4043 g Mass of water =  1.230×103 g  Initial temperature = 23.91 °C…

Q: Suppose it took 108 joules of energy to raise a bar of gold from 25.0°C to 29.7°C. Given that the…

A: Q = 108 J  Tf = 29.7°C  Ti = 25.0 °C  m = ?

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: How much energy does an aluminum (M = 27.0) sample gain if its molar heat capacity is 24.2 J/mol•K,…

A:

Q: 7.312 g of dry ice (solid carbon dioxide) is placed in a sealed 2.000 L bag in a room where the…

A: Moles of carbon dioxide used = Mass of dry iceMolar mass of CO2=7.312 g44 g/mol=0.166 mol

Q: Dulong and Petit’s law states that specific heat capacity x atomic mass = 3R. If the specific heat…

A: Since according to the Dulong and Petit’s law, Specific Heat capacity X Atomic mass = 3 R  where R =…

Q: Benzene (C6H6) burns in oxygen to form carbon dioxide and water. A 1.241 g sample of benzene was…

A: A bomb calorimeter is an instrument used to measure the heat of combustion of a reaction at a…

Q: The following thermochemical equation is for the reaction of methane(g) with water(g) to form…

A: We have reaction of methane reacted with water , ∆H have positive sign indicates that heat is…

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

A:

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

A:

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

A:

Q: 6. A hot unknown metal with mass 17.68 grams is transferred from boiling water (98.70 °C) to a…

A: The answer of the question is given below:

Q: If 9.20 kJ of energy are required to change the temperature of a sample of  water from 10.0 oC to…

A: We can solve the problem by considering the following equation : q = m × C × Tfinal - Tinitial Where…

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: Water that contains deuterium rather than ordinary hydrogen is called heavy water. The specific heat…

A: Given,specific heat of heavy water at 25 deg. C. is 4.217J/g deg. CMass of water = 10gChange in…

Q: Consider the combustion of a single molecule of CH4(g), forming H2O(l) as a product. How much…

A: Heat released in a reaction can be calculated from Hess's law by subtracting the  enthalpies of…

Q: You were walking along España Blvd. and you randomly picked up a piece of strange shiny rock that…

A: Given:  Mass of piece ,m = 49.9 g  Heat required, q = 790 J  Change in temperature, ∆T = ( 74.8 -…

Q: (4 blanks) An ice-making machine operates in a Carnot cycle. It takes heat from water at 0.0 °C and…

A: The Carnot engine estimates the maximum efficiency any heat engine can obtain.   Given m=85.0 kg…

Q: 7. The combustion of sugar in a calorimeter is similar to the oxidation of sugar in the body. A…

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Q: The following thermochemical equation is for the reaction of methane(g) with water(g) to form…

A:

Q: (4 blanks) An ice-making machine operates in a Carnot cycle. It takes heat from water at 0.0 °C and…

A:

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: When 0.430 g of biphenyl (C12H10)(  undergoes combustion in a bomb calorimeter, the temperature…

A: Given,  Mass of biphenyl (C12H10) = 0.430 g  Initial temperature = Ti = 26.8 ∘C Final temperature =…

Q: Assume you are traversing a glacier and want to make a pot of green tea to warm up. If you start…

A:

Q: A chemist measures the enthalpy change AH during the following reaction: COCI,(9) + 4…

A: The reaction with ΔH given is given as, => And the reactions for which the ΔH has to be…

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

A: