Ammonia (NH3) decomposes to hydrogen and nitrogen and 22.0 kcal/mol of energy is absorbed.   2 NH3(g) → 3 H2(g) + N2(g)       ΔH = +22.0 kcal/mol How much energy is absorbed when 9.12 g of NH3 reacts?

Q: A 1261.8kg car is traveling down the road at 81.81 km/h. While traveling at this rate of speed, what…

A: The kinetic energy of the vehicle in kilojoules is = 325.8 kJ

Q: A 1.3-g sample of rice is placed in a calorimeter. When the sample is burned, 22.00 kJ is given off.…

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Q: A 1709 kg1709 kg car is traveling down the road at 87.0 km/h.87.0 km/h. While traveling at this rate…

A: Given that,

Q: he combustion of butane produces heat according to the equation 2C4H10(g) + 13O2(g) → 8CO2(g) +…

A: give  for 8 mole of CO2 produced to release 5314 kJ/mol of heat  then you have to determine the…

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

A: The question is based on the concept of unit conversions. We need to convert the given quantity into…

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

A: Given , 1 cal = 4.184 J 1kcal = 1000 cal

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Q: A 1533 kg car is traveling down the road at 99.0 km/h. While traveling at this rate of speed, what…

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Q: When NH4Cl(aq) reacts to form NH3(g) and HCl(aq), 21.07 kcal of energy are absorbed for each mole of…

A: We have to determine the value of ∆H for the given reaction

Q: A 1555 kg car is traveling down the road at 95.4 km/h. While traveling at this rate of speed, what…

A: Given  Mass of Car( m )  = 1555 Kg             Speed( v)  =  95.4 km/h  Kinetic Energy of Vehicle =…

Q: lacmillan Learning Carbohydrates serve as a vital source of chemical energy to the human body.…

A: 1 KJ = 0.239 Kcal  So  119 KJ = 119 X 0.239 Kcal             =  28.44 Kcal

Q: Ammonia (NH3) decomposes to hydrogen and nitrogen and 22.0 kcal/mol of energy is absorbed. 2 NH3(g)…

A:

Q: Hydrocarbons, compounds containing only carbon and hydrogen, are important in fuels. The heat of…

A:

Q: Carbohydrates serve as a vital source of chemical energy to the human body. Carbohydrates are broken…

A: We have to convert 119 KJ = ? KCal

Q: How many Joules are there in 54.0 kcal? (1 cal = 4.184 J)

A: One calories is equal to 4.184 joule.                1 kcal = 1000 cal.…

Q: How many Joules are there in 43.3 kcal? (1 cal = 4.184 J)

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Q: The heat of reaction for the combustion of hexane, C6H14, is 995.0 kcal/mol. What is the heat of…

A: The heat change in a particular reaction is known as enthalpy change (∆H). The endothermic reactions…

Q: When NO(g) reacts with O₂(g) according to the following reaction, 13.93 kcal of energy are evolved…

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

A: In this problem, we will discuss about the units of energy: Joule-1 joule is equals to 0.000239006…

Q: Hydrocarbons, compounds containing only carbon and hydrogen, are important in fuels. The heat of…

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A: The molar mass of ethanol = 46 g  2 moles of ethanol , which weights 92.16 g produces 16.6 kcal  of…

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Q: It took 1295 J to raise the temperature of a sample of water from 17.3 °C to 38.7 °C. Convert 1295 J…

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Q: Hydrocarbons, compounds containing only carbon and hydrogen, are important in fuels. The heat of…

A: Given  Heat of Combustion of Cyclohexane  = Kcal/mole  Balance reaction for complete combustion of…

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Q: Hydrogen sulfide, H2 S, is produced during decomposition of organic matter. When 0.4300 mol H2S…

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Q: [References] Use the References to access important values if needed for this question. When HBr(g)…

A: We can solve this question using the stoichiometry of the reaction. As given in the question , for…

Q: chemistry

A: Dear student I have given answer to your question in the image format.

Q: rogen sulfide, H2S, is produced during decomposition of organic matter. When 0.4190 mo H2S burns to…

A: Given, Heat released = -217.0 KJ

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A: The mass of water is determined as follows. mwater=dwater×Vwater=1.00 g/mL×150 mL=150 g

Q: A 0.2500g sample of a pretzel is burned. The heat it gives off is used to heat 50.00g of water from…

A: The amount of heat liberated can be calculated as follows-

Q: Perform the conversions between energy units. 633 kJ = 2325 kcal %3D kJ 9.01 x 10 J = kcal

A: