425.66J/2.0360 g. Convert to kj/mol. Show the work. Molar mass = 39.99 NaOH B) 425.32J/ 1.9532g. Convert to kj/mol. Molar mass = 80.043 Na4NO3

Q: How much energy is released during the formation of 98.7 g of Fe according to the reaction below?…

A: Given reaction is :  Fe2O3 (s) + 2Al (s) ----> Al2O3 (s) + 2Fe (s) , ΔHrxn = -852 KJ/mole  How…

Q: he combustion of naphthalene , which releases 5150.1 kJ/mol, is often used to calibrate…

A: The heat capacity, C, of the calorimeter is; 5150.1 kJ/mol×mnephthaleneMMnephthalene=C∆T5150.1…

Q: 5. Using data below and other data in your text if necessary, calculate the enthalpy change for the…

A:

Q: Iculate föllowing. aicate if the system do work on the surroundings or the surroundings do work on…

A: Hi! there, since there are multiple questions posted. We are answering first question. If you need…

Q: Consider two hypothetical systems (A and B) whose available energy levels are shown below. Each…

A: Answer is explained below.

Q: A solid-state substance absorbs 5589kJ of energy. The mass of the substance is 0.774kg. Assuming the…

A: To solve this problem we will use the formula Q = m•C•∆T  Where, Q = heat absorbed  m = mass of…

Q: 8. The caloric content of some pasta (listed on the side of the box of pasta!) is 4.000 kcal per…

A: The amount of heat required to increase the temperature of one kilo gram of a substance by one…

Q: How much energy (in kJ) is absorbed when 143. L of nitrogen dioxide is created at STP?

A:

Q: A 0.1694 g sample of benzopenone(C13H10O) is burned in a bomb calorimeter that has a heat capacity…

A:

Q: Given: 4 NH3 (g) + 3 O2 (g) → 2 N2 (g) + 6 H2O (l) ΔH = -1500 kJ How many grams of ammonia (MM =…

A: As per the given balanced chemical equation, 4 moles of ammonia react to release 1500 kJ of heat.

Q: 2. In a steam engine, steam in a cylinder expands against a piston exerting 10.00 atm of external…

A: The change in energy of the steam is calculated in step 2

Q: Consider the following reaction: 2 H, + O,-> 2 H,O A. H=- 483.6 kJ/mol rxn a Is this reaction…

A: Given that : enthalpy of reaction ∆H = 483.6 kJ/mol We need to check if reaction is exothermic or…

Q: Practice: What is the IUPAC name? HO CI

A:

Q: Calculate enthalpy change for a chemical reaction. When NH3(g) reacts with N₂O(g) according to the…

A:

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 measures the enthalpy change AH during the following reaction: Sg(s) + 24 F₂(g) →8 SF 6(g)…

A: To solve this problem we have to use the given thermochemical reaction .

Q: 1.2 moles of a compound reacts with a ΔHrxn=88 kJ/mole.  It proceeds 74% to completion.  How much…

A: Given: no of moles, n= 1.2 moles Enthalpy of reaction, ΔHrxn=88 kJ/mole completion % = 74 %

Q: 2. If o.250 g of fuel increases the temperature of a calorimeter by 20 °C, and the calorimeter is…

A: Given : Mass=0.250 g Temperature difference=20oC Calorimeter calibration=7.28 kJ/oC To find: Heat of…

Q: How much energy is evolved during the reaction of 51.2 g of Al, according to the reaction below?…

A: Given reaction: Fe2O3(s) + 2 Al(s) → Al2O3(s) + 2 Fe(s)       ΔH°rxn = -852 kJ We have to find the…

Q: If a 50.0g sample of Cu is heated to 180.00C and is placed in 100.0 ml of water in a calorimeter at…

A: Given :  Mass of Cu sample = 50.00 gm  Initial temperature of Cu = 180 °C  Volume of water = 100 ml…

Q: 49. When 2.50 g of methane burns in oxygen, 125 kJ of heat is produced. What is the enthalpy of…

A:

Q: Iron oxide reacts with aluminum in an exothermic reaction. Fe2O3(s) + 2 Al(s) → 2 Fe(s) + Al2O3(s)…

A: Fe2O3(s) + 2 Al(s) → 2 Fe(s) + Al2O3(s) Here 1 mol of Fe2O3 reacts with 2 mols of Al to form 2 mols…

Q: Suppose the 25.0 g of the following substances all initially at 27.0 °C absorb 2.35 kJ of energy.…

A: Amount of heat,Q required to change the temperature of a substance of mass ,m and specific heat…

Q: When  2 moles of HBr(g) react with cl2(g) to  form  HCl(g) and Br2(g) according to the following…

A: Given reaction equation for the reaction of HBr(g) and Cl2(g) gives HCl(g) and Br2(g) as follow;…

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

A:

Q: When 1.42 g of iron reacts with 1.80 g of chlorine, 3.22 g of iron(II) chloride (FeCl2, molar mass =…

A: Iron reacts with chlorine to form iron(II) chloride. When 3.22 g of  is formed, 6.8 kJ of heat is…

Q: When 1 mole of 12(g) reacts with Cl₂(g) to form ICI(g) according to the following equation, 26.8 kJ…

A: Recall the given equation,                                I2 g  +  Cl2 g  →  2 ICl gWhen 1 mole of…

Q: How many grams of NaCI will be produced when 489.2 J of energy is released? 2 Na (s) + Cl2 Cl2 (g)…

A:

Q: Consider the following equation:        2C2H2(g) + 5O2(g) ->4CO2(g) + 2H2O(g) + energy        (a)…

A: as per Q&A guidelines of portal I solve first question because it comes under multiple question…

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: NH3(g) +O2lg) -> + (3)ON H2O(g) Based on the enthalpies of formation, how much energy, in kJ, will…

A:

Q: A scientist measures the standard enthalpy change for this reaction to be 296.0 kJ/mol: H₂S(g) + 2…

A:

Q: 2. What property of enthalpy, AH, allows us to use Hess' law to solve problems?

A:

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: In a calorimeter, a 2.0 g sample of magnesium is burned to form MgO. In doing so, 25.5 kJ of energy…

A: