A volume of 0.25 L is acquired when you combine 0.2 g of Mg metal with HCl. Assuming the solution completely reacts (Mg + HCl = MgCl2 + H2) and Tsolution changes from 24.1 degrees C to 33 degrees C,  What is qrxn? The solution's density is 1 g/mL and specific heat of water = 4.18 J/g degrees C.

Q: A 6.61g sample of an unknown salt (MM=116.82g//mol) is dissolved in 150.00g water in a coffee cup…

A: Answer:Amount of heat released or absorbed during the dissolution of 1 mole of a compound is called…

Q: Consider these reactions, where M represents a generic metal. 2 M(s) + 6 HCI(aq) → 2 MCI, (aq) + 3…

A: Hess's law states the enthalpy change for the overall reaction is the sum of the enthalpies of…

Q: Nitric acid is neutralized with potassium hydroxide in the next reaction. HNO3(aq) + KOH(aq) →…

A: We will first determine the mass of solution by adding the volume and multiplying density. And we…

Q: In a constant-pressure calorimeter, 50.0 mL of 0.350 M Ba(OH), was added to 50.0 ml. of 0.700 M HCI.…

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Q: 9.06 g of M9SO, is placed into 100.0 mL of water. The water's temperature increases by 6.70°C.…

A: First, notice that the temperature of the water increased, meaning this is an EXOTHERMIC reaction.…

Q: In a constant-pressure calorimeter, 60.0 mL of 0.310 M Ba(OH), was added to 60.0 mL of 0.620 M HCI.…

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Q: How much heat will be released (AH) if 0.4501 mol of NH3 are mixed with 0.20 mol of O2 in the…

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Q: 2. If the temperature rises from 18.7 °C to 25.2 °C when 1.988 g of MgO pellets are added to 199.0…

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Q: Which is the correct formation reaction for KCI? OK(s) + 12 Cl₂(s) ----> KCI(s) OK(aq) + 2Cl₂(g)…

A: A question based on stoichiometry that is to be accomplished.

Q: The theoretical heat of solution of sodium nitrate, NaNO3, is 20.50 kJ/mol. When 1 mole of NaNO3 is…

A: Given: The theoretical heat of solution of sodium nitrate (NaNO3) = 20.50 kJ/mol We have to find…

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: A 4.81 g sample of an unknown salt (MM = 116.82 g/mol) is dissolved in 150.00 g water in a coffee…

A: Solution :        The heat of dissolution is defined as an enthalpy change related to the…

Q: Mass of water 5.678 g Ti 2.33 Tf -21.33 a. calculate the heat lost when the mass of water (g)…

A: This problem is based on phase tranfer of matter . Here water transform from water to ice from…

Q: 10.5 g of solid ammonium nitrate are dissolved into a 100.0 g sample of water. The standard enthalpy…

A: Ammonium nitrate is a solid salt it can dissolve in the water .then it can ionise as ions  and AC as…

Q: In a coffee-cup calorimeter, 29.8 g sample of solid KCl is dissolved in 100.0 g of water at 15.0 °C.…

A: Heat of solution :- It is measured by the change of enthalpy during formation of solution. This can…

Q: Is this reaction exothermic, endothermic, or neither? If you said the reaction was exothermic or…

A: A.) Endothermic reaction is that in which heat is absorbed and temperature fall down.  Exothermic…

Q: Consider these reactions, where M represents a generic metal. 2 M(s) +6 HCI(aq)2 MCI, (aq) + 3 H,(g)…

A:

Q: Consider these reactions, where M represents a generic metal. 1. 2 M(s) + 6 HCI(aq) 2 MCI, (aq) + 3…

A:

Q: The specific heat of water is 4.18. How much heat is required to raise the temperature of 500 g of…

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Q: Payal

A: The objective of this question is to calculate the heat of reaction, qrxn, for the given chemical…

Q: Consider these reactions, where M represents a generic metal. 2 M(s) + 6 HCl(aq) – 2 MC, (aq) + 3 Н,…

A: The reactions given are,

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

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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: Consider the enthalpy diagram below, and assume that AH_f> 0 for both A and B. Consider a reaction…

A: The objective of the question is to understand the nature of the reaction where A converts to B,…

Q: A student dissolves a sample of barium hydroxide to make a 125-mL solution and then titrates it with…

A: The balanced equation is Ba(OH)2 + 2 HCl ----------> BaCl2 + 2 H2O ΔH for this reaction is –54…

Q: The reaction caused the temperature of the solution to rise from 24.18 °C to 28.27 °C. If the…

A:

Q: 3. When carbon disulfide, CS2, forms from its elements, heat is absorbed. How much heat would be…

A: Enthalpy of reaction - it is the heat evolved or absorbed when number of moles of reactants , as…

Q: 7. When 0.63 g of solid LiCI (AHsoln = – 37.1 kJ/mol) dissolves in 5 L of water, how much heat is…

A: Answer :-  Heat released (q) when 0.63 g LiCl dissolved in 5 L water = -552.8 (J) = -0.5528 (kJ)…

Q: In a constant-pressure calorimeter, 60.0 mL of 0.300 M Ba(OH), was added to 60.0 mL of 0.600 M HCI.…

A: The balanced reaction taking place can be written as, => 2 HCl (aq) + Ba(OH)2 (aq) --------->…

Q: A 50.0 g sample of Chromium metal was heated to 103 degrees Celcius and then dropped into a beaker…

A: The formula used to calculating the temperature of metal water mixture is as follows: where, Cwater…

Q: When 13.99mL of HCl of unknown concentration (but less than that of the base) are reacted with…

A: Given : Concentration of NaOH = 3.172 M Volume of NaOH solution = 15.00 mL = 0.0150 L…

Q: In a constant-pressure calorimeter, 50.0 mL of 0.340 M Ba(OH), was added to 50.0 mL of 0.680 M HCI.…

A: Given: Concentration of Ba(OH)2 = 0.340 M Volume of Ba(OH)2 solution = 50.0 mL = 0.050 L…

Q: Consider these reactions, where M represents a generic metal. 2 M(s) + 6 HCI(aq) 2 MCI, (aq) +3H,…

A: The enthalpy of the equation  2M(s) + 3Cl2(g) -----> 2MCl3(s) is calculated below.

Q: Al2O3(s) + heat → 2Al(s) + ½ O2(g) This reaction is    (endothermic / exothermic ).

A: An EXOTHERMIC thermochemical reaction equation is written as  Reactants ------> products + Heat…

Q: Which of the reactions are exothermic? 2 Mg(s) + O₂(g) - 2 MgO(s) + heat - NH₂Cl(s) + heat NH3(g) +…

A:

Q: In a calorimeter, 150 mL of 0.5 mol/L barium chloride is mixed with 150 mL of 0.5 mol/L sodium…

A: Answer:When solutions of two different substances are mixed and formation of precipitate takes place…

Q: 3. The heat of the solution of a solid sample was determined using a coffee cup calorimeter that…

A:

Q: HCl(aq) AH2 = -74.8 kJ (g) → 2 HCI(g) AH3 = -1845.0 kJ → MCI,(aq) AH4 = -300.0 kJ on to determine…

A: According to the question, we have a set of reaction: 2M(s)+6HCl(aq)→2MCl3(aq)+3H₂(g)  ∆ H₁ = -655.0…

Q: Consider the following reaction. (a) Is the reaction exothermic or endothermic? exothermic…

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Q: A 8.27 g sample of an unknown salt (MM = 116.82 g/mol) is dissolved in 150.00 g water in a coffee…

A: ∆H = 45.06kj/mol

Q: A student prepared a 3.00 mL of 3.00 M HNO3 and 3.00 mL of 3.00 M KOH. Afterwards, he teo solution…

A: First, calculate the mass of HNO3 and KOH as follows: mHNO3 = Molarity × Volume × Molar mass= 3.00M…

Q: How much heat is released when 4.19 mL of 0.54 M HBr reacts with 23.50 mL of 0.0695 M Ba(OH)₂? 2…

A:

Q: A 6.61g sample of an unknown salt (MM=116.82g//mol) is dissolved in 150.00g water in a coffee cup…

A: GivenMass of unknown salt = 6.61 gMolar mass = 116.82 g/mol

Q: A 6.61g sample of an unknown salt (MM=116.82g//mol) is dissolved in 150.00g water in a coffee cup…

A: Answer:Calorimetry is the easiest way to calculate the amount of heat transferred to a substance or…

Q: If 2C4H10 + 13O2 --> 8CO2 + 1OH2O is exothermic, is energy (heat) a reactant or product?

A: A reaction in which heat is released is called exothermic reaction.

Q: Consider these reactions, where M represents a generic metal. 1. 2 M'S) + 6 HCI(аq) — 2MСI, (aq) + З…

A: 2M(s) + 6 HCl (aq) →2 MCl3 (aq) + 3H2   ∆H1 =-789KJ HCl (g) →HCl ∆H2 = -74.8 kJ H2 (g) + Cl2 (g) →2…