Given: 4 NH3 (g) + 3 O2 (g) → 2 N2 (g) + 6 H2O (l)  ΔH = -1500 kJ How many grams of ammonia (MM = 17.03 g/mol) need to be reacted in order to release 4.50 x 104 kJ of energy?

Q: Calculate the kinetic energy in joules of an automobile weighing 4175 lb and traveling at 45 mph. (1…

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Q: Calculate the heat (in kJ) associated with 246 g of white phosphorus burning in air according to the…

A: Answer: This is the combustion reaction of phosphorus and it is an exothermic reaction.

Q: For the reaction N2(g) + O2(g) = 2NO(g), ∆H0 = 180.5 kJ. How much energy is needed to generate 35…

A: For a chemical reaction, the enthalpy of reaction (ΔHrxn) is the difference in enthalpy between…

Q: How much energy is evolved during the reaction of 48.7 g of Al according  to the reaction below?…

A: Number of Mole- Ratio of given mass of substance to the molar mass of substance is called number of…

Q: Enter your answer in the provided box. Calculate the heat (in kJ) associated with 336 g of white…

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Q: from the combustion of hydrazine, N₂H4, is used to power rockets into space in the The energy…

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Q: How much heat is released by the formation of 18.0 g of CaCO,? Show the conversions required to…

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Q: You perform an experiment similar to the Calorimetry and Enthalpy lab we did in PIVOT, this time to…

A: Mass of water (g)= m = 25.00 g Mass of almond (g)0.78 g Ti (water) = initial temperature 24.0°C Tf (…

Q: "When 0.985g sample of C7H SN 3o 6 is burned in a bomb calorimeter, the temperature increases from…

A: From the given data we haveMass of C7H5N3O6 =0.985Molar mass of C7H5N3O6=227.13g/molMoles of…

Q: Where on the track does a roller coaster have the most potential energy? O 1 O 2 O 3 O 4 O 5

A: The capacity of doing the work is called energy. Kinetic energy and potential energy are two types…

Q: For the reaction H2(g) + 1/2 O2(g) --> H2O(g), DHo = -241.8 kJ/mol. what mass of H2(g) in grams is…

A: To solve this problem we have to use the given thermochemical equations. First we have to write the…

Q: According to the following thermochemical equation what mass of HF (in g) is required to produce 345…

A: The molar mass of HF is 20.1 g/mole

Q: Given that CaO(s) + H2O(l) → Ca(OH)2(s), = –64.8 kJ/mol, how many moles of CaO must react in order…

A: All things are provided in handwritten solution

Q: What is the identity of a 100. g sample of metal that, upon absorbing 4680 J of heat, increases in…

A: Given  Mass of sample (m)=100 g Amount of heat energy (Q)= 4680 J Temperature (t)= 52 oC

Q: How much energy (kJ) is released when 2.30 kg of gold is cooled from 88°C to 22°C?

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Q: Br₂ (1) +21 (aq) → 2Br (aq) + 12(5) Express the energy change in kilojoules to two significant…

A: We can solve this problem by using the following equation ∆G° = -n×F×E° ∆G° = free energy change  n…

Q: Calculate the energy in joules of a 6.08 g object moving at a speed of 307 m/s.  Ek =   J

A: Energy of the moving object can be determined using the given equation,

Q: A piece of aluminum with mass of 5.0 g is immersed in 35.0 g of water. This system is heated…

A: Given: Mass of aluminium = 5.0 g Mass of water = 35.0 g Change in temperature is 26.6 to 38.2 oC…

Q: If 7.30 kJ of energy are required to change the temperature of a sample of  water from 5.0 oC to…

A: For any substance weighing 1.0 g, the heat essential for raising the temperature by one Kelvin or…

Q: If the specific heat of butanol is 1.59 J/g-°C, how much energy is required to heat 21.8 grams of…

A: Given, mass of butanol=21.8 graminitial temperature Ti =45 °Cfinal temperature Tf =95 °Cspecific…

Q: Čalculate the mass equivalent of the energy released by the complete combustion of 1 mol of methane…

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Q: Laboratory quantities of ethylene gas, CaHa(g), can be prepared by an elimination reaction of…

A: In order a reaction to proceed conversion from reactant to product, it involves some amount of heat…

Q: 3. If 124 kJ of heat is absorbed in a reaction that forms nitric oxide from nitrogen and oxygen,…

A: 3. Sol :-  Given,  Amount of heat absorbed = 124 KJ  Reaction between N2 and O2 takes place to gives…

Q: 9:15 Part 1 Several chemical reactions happen in bioluminescent algae. One of the most important is…

A: If energy is absorbed during a process, then reaction is endothermic and if energy is released…

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: The evaporation of water is endothermic. What minimum mass of water (in grams) has to evaporate to…

A: We have given the Molar mass of hydrogen = 2.02 g/mole Molar mass of oxygen = 32 g/mole So Molar…

Q: I am confused on how to find the enthalpy change with this information. Thank you!

A: Enthalpy of formation of a pure compound will be zero. So the formation enthalpy for oxygen will be…

Q: Using the following data, calculate the standard heat of formation of ICl(g) in kJ/mol:

A: Interpretation: To determine the standard heat of formation of ICl (g)

Q: Mg(s)+2H2O(l)→Mg(OH)2(s)+H2(g). Calculate the standard enthalpy change for this reaction. Calculate…

A: Enthalpy change of the given reaction can be calculated for the given formula.

Q: theoretical yield of ammonia

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Q: How much energy (in kJ) is released by the combustionof 1.00 mol of C8H18?

A: The enthalpy change (∆H0) associated with a chemical reaction is furnished as the amount of energy…

Q: for the reaction N2(g) + O2 (g) to 2NO(g) delta H = 180.5 KJ how much energy is neede to generate 35…

A: ∆H of a reaction is always expressed in terms of the number of moles of reactants and products.…

Q: The reaction between hydrogen and fluorine gas proceeds according to the reaction equation H2(g) +…

A: The energy difference between the products and reactants is known as the energy change of a…

Q: What is the mass of SO3 when -8753 kJ of energy are used according to the following equation?2S +…

A: A reaction is said to be endothermic where energy is consumed which is represented by a positive…

Q: For the following reaction, what is the energy released, in GJ/mol? (1 GJ = 1E9 J) Use 2.998E8 m/s…

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Q: Find the total energy involved in converting 450.0 g of water from -21°C to 35°C.

A: We know that heat required to increase the temperature from -21°C to 35°C is given by = q1 + q2 + Q3…

Q: 3. The equation for the combustion of octane is: 20H18) + 250, e16CO) +18H,0 AH - -10.900 kJmol ()…

A: Number of moles of octane required to produce 10900 KJ of energy = 1 mol Number of moles of octane…

Q: The combustion of methane is described by the equation in the figure. How much energy would be…

A: The molar heat of combustion (He) is the heat released when one mole of a substance is completely…

Q: Salt is made in nature by mixing sodium metal with chlorine gas in the following reaction: 2 Na (s)…

A: When energy is  released from a reaction it is exothermic reaction and when energy visit absorbed…

Q: 01. The enthalpy change in a reaction is 1366 kJ per mole. Should the enthalpy of the combustion…

A: There are 2 types of reactions that are classified based on enthalpy change: Endothermic 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: NH3(g) +O2lg) -> + (3)ON H2O(g) Based on the enthalpies of formation, how much energy, in kJ, will…

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Q: How much energy (in KJ) is there in 125 g of chocolate with with an energy density of 5 cal/g?

A: To solve this problem, first calculate energy in calorie in 125g of chocolate using energy density…

Q: Using the equation for photosynthesis below, answer the following equations 2800KJ + 6 CO2 (9) + 6…

A: Given: Given photosynthesis reaction: 2800 kJ+6CO2(g)+6H2O(l)→C6H12O6(s)+6O2(g)

Q: Given the following equation: 2H3PO4 + 3Mg(OH)2  → 6 H2O + Ca3(PO4)2 + 450.8 kJ If 300 mL of 0.75…

A: Answer:- This question is answered by using the simple concept of stoichiometry which involves the…

Q: How many kilojoules of energy would have to evolve from this reaction if the total mass of the…

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Q: Hypothetical elements A2 and B2 react according to the following equation, forming the compound АВ.…

A: We will answer this question using ∆H value and calorimeter concepts.

Q: AH° = -1670 kJ/mol 2. For this unbalanced chemical reaction: X(s) + 3/2 Y2(g) → X₂Y3 (Sh 1.…

A: Recall the given reaction,                                            X s  +  3/2 Y2 g  →  X2Y3 s…

Q: large natural gas-fired electrical generating station may burn 0.5 kg of methane per second. Use…

A: Given that the station burns 0.5 kg of methane per second. To calculate the change in mass if the…