How many moles

Q: Consider these reactions: Reaction 1: H2(�)+Cl2(�)⟶2HCl(�)Δ�=−184.6 kJ  Reaction 2:…

A:

Q: 8. Hydrazine, N₂H4, is a rocket fuel. Calculate the AH rxn when 1 mole of hydrazine is combusted…

A:

Q: If the reaction of 0.500 grams of aluminum metal with excess aqueous HCl releases 9.72 kJ of heat,…

A: Given- reaction - 2 Al (s) + 6 HCl (aq) --> 2AlCl3 (aq) = 3H2 (g) Q = 9.72 KJ  mass of aluminum =…

Q: 4.78 x 10 kJ E) 1,040 kJ 51.Methanol (CH,OH) burns according to the equation 2CH,OH(I) +…

A: The given reaction is,

Q: 8. The overall reaction in commercial heat packs can be represented as   How much heat is released…

A:

Q: A hot air balloon is being inflated to its full extent by heating the air inside it. In the final…

A: Delta E for the process = 790 kJ

Q: A student places 125g of liquid water, H201), at 24 °C into a coffee-cup calorimeter, and then adds…

A: Here the system is showing two change , one is the dissolution of KBr and another one is for…

Q: 1.  How many moles of butane, C4H10(l), must be burned to produce 182 kJ of heat under standard…

A: We have to find how many moles of butane, C4H10(l), must be burned to produce 182 kJ of heat under…

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

A: In the question, negative sign of ∆H° means energy is released during the burning of SiH4  You can…

Q: Consider the balanced reaction 4 A+5 B →3 C+4 D and the enthalpies of formation provided in the…

A: Given  Compound       ∆Hf   ( KJ/mole )      A                   56.4       B                 -399.9…

Q: Given the reaction: 4 Fe(s) + 302(g) → 2 Fe203(s) A H= -1652 kJ, what is the enthalpy change when…

A: for a given reaction, 4 Fe(s) + 3 O2(g) → 2 Fe2O3(s) enthalpy change, Δ H = -1652 KJ

Q: CS2 and 10.0 g Cl2 reacts by the followi CS2(g) + 3Cl2 (g) AH = -230. kJ

A: Given, Mass of Cl2 = 10 g Mass of CS2 = 10 g Molar mass of CS2 = 76 g/mol Molar mass of Cl2 = 71 g…

Q: If you have 6.0 moles of ammonia, how much energy in kJ released in the chemical reaction? N2 (g) +…

A: Answer is A) -280 kJ

Q: 1.  How many moles of butane, C4H10(l), must be burned to produce 182 kJ of heat under standard…

A: We have to find how many moles of butane, C4H10(l), must be burned to produce 182 kJ of heat under…

Q: A chemist measures the energy change AH during the following reaction: 2 HgO(s) → 2 Hg(1) + O₂(g)…

A: The objective of the question is to determine the type of reaction (endothermic or exothermic) and…

Q: "Heater meals" are precooked meals that come with a water-activated heating mechanism.  One way to…

A: The reaction given is Mg(s) + 2 H2O(l) → Mg(OH)2(s) + H2(g)

Q: A chemist measures the energy change AH during the following reaction: 2 NH3(g) → N,(9)+3H2(g)…

A: The balanced reaction taking place is given as, => 2 NH3 (g) -------> N2 (g) + 3 H2 (g)…

Q: Consider the following reactions: A B AGn 3 kJ/mol C- B AGrn = 37.3 kJ/mol !3! What is the value of…

A:

Q: if 11.2 g of H2 (g) (MM = 2.016 g/mol) were to react according to the balanced equation given below,…

A: We have to calculate the heat released amount.

Q: 4. How much work is done by or on the system (state which), in kcal, in a reaction if the internal…

A: To calculate the work done by or on the system , we would Calculate value and sign of w using first…

Q: Please don't use hend raiting and step by step solutions

A: Step 1: Regardless of the number of steps required to achieve the reaction, the change in enthalpy…

Q: Given the reaction: 4 Fe(s) +302(g) → 2 Fe,03(s) A H= -1652 kJ, what is the enthalpy change when…

A: Given reaction is  4 Fe(s) + 3 O2(g) ----> 2 Fe2O3(s) ; ∆H = -1652 kJ  We need to find the…

Q: A piece of unknown solid substance weighs 439 g, and requires 8427 J to increase its temperature…

A:

Q: Meals-ready-to-eat (MREs) are military meals that can be heated on a flameless heater. The heat is…

A: Given: The volume of water, (V) = 71 mL The density of water, (d) = 1.0 g/mL The initial temperature…

Q: You mix 208 ml of 0.291 M LIOH with 208 ml of 0.536 M HF in a coffee-cup calorimeter, and the T of…

A: Calorimeters are used for the determination of heat of reaction. For a coffee-cup calorimeter the…

Q: A chemist measures the energy change AH during the following rea 2 HgO(s)→ 2 Hg(1)+ O₂(g) Use the…

A:

Q: A sample of 1.04 g NH,NO3 (80.05 g mol-1) decomposes in a bomb calorimeter with a heat capacity of…

A:

Q: Which of the following represents an exothermic chemical reaction? O CO2 (g) breaking into C (s,…

A: Exothermic reaction are those in which heat is released. For exothermic reaction ∆H is negative.

Q: 1. Hydrogen that is stored "stored" in NH3 can be released through the reaction: 2 NH3(g) → N₂(g) +…

A: Answer:- This question is answered by using the simple concept of Hess law of constant heat…

Q: How much heat is needed for the decomposition of 168.4 g of sodium nitride (Na3N) into nitrogen (N2)…

A: The balanced chemical equation can be written  as follows 2 Na3N = 6Na + N2 The heat needed for this…

Q: 7. An expanding gas does 175 kJ of work on its surroundings at a constant pressure of 5.55 atm. If…

A:

Q: Instant cold packs used to ice athletic injuries on the field contain ammonium nitrate and water…

A:

Q: What is the change in internal energy for a system that performs 213 kJ of work on its surroundings…

A: Given, System performs 213 KJ of work on its surrounding And system loses 79 KJ of heat in the…

Q: A chemist measures the energy change AH during the following reaction: 2 NH3(g) → N₂(g) + 3H₂(g) ΔΗ=…

A:

Q: A chemist measures the energy change AH during the following reaction: 2 HgO(s) → 2 Hg(1) + O₂(g)…

A: The definition of an exothermic reaction is one in which the system (where the reaction is taking…

Q: In the following reaction, how much heat is generated when 3.27 moles of CH« are burned? CH: (g) + 2…

A: The reaction is : CH4(g)  +  2O2(g)  →  CO2(g)  +  2H2O(g)       ∆H°=-802 kJ/mol Here, as we can…

Q: C₂H5OH + 302 2CO₂ + 3H₂O AH=1367kJ/mol How many grams of carbon dioxide are produced when 530. kJ of…

A: Ethanol reacts with oxygen to form carbon dioxide and water. The equation for the balanced…

Q: 8. Consider the reaction: C,H1,O(s) + 60;(g) → 6CO:(g) + 6H;0(1) , the heat change q for this…

A: When the energy of the products is smaller than the reactants or the system releases heat in the…

Q: on 22 of 22 Using the balanced chemical equation, determine how many moles of NaCl will be produced,…

A: According to the question, The given reaction is, BaCl2aq + Na2SO4aq → BaSO4s + NaClaq The moles of…

Q: Use Reaction 1. Determine the mass, in grams, of chlorine gas consumed (with excess H₂) when 1,479.0…

A:

Q: Chemical cold packs contain ammonium nitrate (NH,NO, molar mass-80.06g/mol). When "snapped" the…

A: Heat absorbed, q = mCsΔT m = Mass of NH4NO3 Cs = Specific heat capacity of NH4NO3 ΔT = Ti = Tf Ti =…

Q: 187 g 662g 44.Given that CaO(s) + H,O(1) Ca(OH)2(s), AH°, =-64.8 kJ/mol, how many grams of CaO must…

A: Since you have posted multiple questions, we are entitled to answer the first only.

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

A:

Q: chemist measures the energy change AH during the following reaction: 2 NH3(g) → N₂(g) + 3H₂(g) ΔΗ=…

A: The given data:  2NH3(g) ==> N2(g) + 3H2(g) deltaH° = 160 KJ  When deltaH is positive,  it means…

Q: Here's a formula for the combustion of ethane: 2 C,H, (g) + 7 O, (g) → 6 H¿O (g) + 4 CO2 (g) AH =…

A: Given the combustion reaction of ethane. The heat produced during this combustion is also is given…

Q: 2.What is the overall internal energy for a system that absorbs 188 J of heat and does 141 J of work…

A: Q.2) Given=> Heat absorb(H) = 188 J                          Work done(W) = 141 J •Here work is…

Q: Consider the reaction, C2H4(g) + H2(g) → C2H6(g), where ΔH = –137 kJ. How many kilojoules are…

A: The reaction of alkene with hydrogen is called as hydrogenation. The energy change that is…