A calorimetry experiment was conducted by adding 0.313 g of magnesium to 100.0 mL of 1.00 M hydrochloric acid solution in a foam cup. The temperature was initially 24.62 °C and the maximum temperature attained was 36.74 °C. Determine the heat of reaction, qrxn, in Joules and the enthalpy of reaction, AHxn, in kJ/mol. Assume the solution has a density of 1.00 g/ml and a specific heat of 4.18 J °C¹ g¹.

Q: Find the enthalpy of reaction in kJ/mol when 25mL of 1.0M NaOH combines with 25mL of 1.0M HCl in a…

A:

Q: 5 grams of an unknown compound was dissolved in 75 ml of water with an initial temperature of 22.5ᵒC…

A: Given: Weight of water = 75 ml = 75 grams Initial temperature (T1) = 22.5°C Final temperature (T2) =…

Q: Measurements show that the energy of a mixture of gaseous reactants decreases by 239. kJ during a…

A:

Q: When a 1 6.46 g sample of potassium chlorate (KCIO3) is dissolved in 200. g of water in a coffee-cup…

A: The solvation process of potassium chlorate into water is given by: KClO3s → KClO3aq The mass of…

Q: Measurements show that the energy of a mixture of gaseous reactants decreases by 274. kJ during a…

A: Given:For the given chemical change:Calculate enthalpy change .The change in enthalpy during a…

Q: The molar heat of solution of a substance is found to be +21.38 kJ/mol. The addition of 0.100 mol of…

A: Given information: Moles = 0.100 mol Molar heat of solution = +21.38 kJ/mol Temperature = 40.0 °C

Q: When 1.31 g of KClO3 was added to 138.34 g of water in a calorimeter, the  temperature dropped by…

A: mass of KCIO3 = 1.31 g mass of water = 138.34 g Temperature dropped = 0.506 °C Heat capacity of H2O…

Q: In a constant‑pressure calorimeter, 65.0 mL of 0.340 M Ba(OH)2 was added to 65.0 mL of 0.680 M HCl.…

A:

Q: A coffee cup calorimeter contained 50.0 mL of a 1.33 M KOH solution at an initial temperature of…

A: Given,  A coffee cup calorimeter contained 50.0 mL of a 1.33 M KOH solution   and 50.0 mL of 1.17 M…

Q: Determine the enthalpy of reaction (DHxn) in kJ/ mol H20 formed if an acid/base neutralization if…

A: Given: Molarity of acid, HCl = 1.108 M Molarity of base, NaOH = 1.205 M Rise in temperature = 6.850C…

Q: A student transferred 50.0 mL 1.00 M HCl into a coffee-cup calorimeter, which had a temperature of…

A: Given: Volume of  HCl=  50.0mL Concentration of HCl= 1.00M Volume of NaOH= 50.0 mL Concentration of…

Q: You were tasked to find the enthalpy change in the reaction of an unknown salt with water using a…

A: a.) To calculate value of change in enthalpy , we use formula : ∆H = - q  where, q = value of heat ,…

Q: A 50.0 mL solution of 0.600 M compound A is mixed with an excess of compound B solution at 13.5° C…

A: The reaction will be written as A+ B ---> C + H2O mass of solution= 195 g Heat capacity of…

Q: When 1.18 g of KClO3 was added to 149.35 g of water in a calorimeter, the  temperature dropped by…

A: Given:Mass of water = 149.35 g.Mass of KClO3 = 1.18 g.specific heat of the solution = specific heat…

Q: A student performed the procedure described in the lab manual using 49.9 mL of 1.0 M HCI and 49.3 mL…

A: Molarity of HCl = 1.0 MVolume of HCl: 49.9 mLMolarity of NaOH = 1.0 MVolume of NaOH = 49.3 mLInitial…

Q: The

A: We will calculate ∆H

Q: Using a coffee cup calorimeter, determine the enthalpy of reaction (in kJ) if the reaction media is…

A: Volume of solution V = 150.0 mL  density = 1.000 g/mL  Therefore, mass of solution = 1.000 g/mL *…

Q: Measurements show that the energy of a mixture of gaseous reactants decreases by 179. kJ during a…

A: We know that the thermodynamic equation  H= U + PV  ∆H. =∆(U + PV).  ∆H. = ∆U +P∆V +V∆P  But in the…

Q: Measurements show that the energy of a mixture of gaseous reactants decreases by 305. kJ during a…

A: From the first law of thermodynamics, ∆U=∆H+W where delta U is the change in energy, delta H is the…

Q: In a calorimeter, 300 mL of 0.22 mol/L of calcium chloride is mixed with 200 mL of 0.33 mol/L of…

A: Information of question

Q: A 50.0-g sample of a copper-zinc alloy is heated to 100.0oC. The hot metal is quickly added to 100.0…

A: Specific heat capacity is the amount of heat in Joules is required by the substance to raise its…

Q: Measurements show that the energy of a mixture of gaseous reactants decreases by 158. kJ during a…

A:

Q: 3. 50.0 mL of 1.0 M sodium hydroxide and 50.0 mL of 1.0 M hydrochloric acid, both at 22.5 °C, were…

A: Given :---- Mass of sodium hydroxide solution (mNaOH) = 50.0 gMass of hydrochloric acid solution…

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

A:

Q: Measurements show that the enthalpy of a mixture of gaseous reactants decreases by 323. kJ during a…

A: The enthalpy change of the given reaction is = -323. kJ The work done by the gas mixture is =-162.…

Q: When 200.0 mL of 0.862 M HCI is mixed with 200.0 mL of 0.431 M Ba(OH)2 in a coffee cup calorimeter,…

A:

Q: The standard state of carbon is graphite. ΔH°f,diamond is +1.896 kJ/mol. Diamonds are normally…

A: The question is based on the concept of chemical thermodynamics . we need to calculate enthalpy of…

Q: A certain chemical reaction releases 269. kJ of heat energy per mole of reactant consumed. Suppose…

A: Given the enthalpy of the reaction is 269. kJ/mol The required conversion factor from the enthalpy…

Q: A 5.500 g sample of liquid fuel (molar mass of 32 g/mole), was combusted in the presence of excess…

A:

Q: To a test tube containing 10.0 ml of 0.50 M HCl solution in a calorimeter, 0.05482 g  of solid MgO…

A: A balanced chemical equation is the one that contains the same count of different types of atoms on…

Q: When 2.060 g of titanium is combusted in a bomb calorimeter, the temperature of the calorimeter…

A: Given data: The mass of titanium combusted = 2.060 g. The initial temperature of the calorimeter =…

Q: A generic solid, X, has a molar mass of 58.9 g/mol. In a constant-pressure calorimeter, 30.9 g of X…

A:

Q: A quantity of 100.0 mL of 1.0 M HCl and 100.0 mL of 1.0 M NaOH are mixed in a calorimeter. The…

A:

Q: In a constant pressure coffee-cup calorimeter, 100.0 mL of 0. 050 M of Ag+ was mixed with 100.0 ml…

A: Given : Concentration of Ag+ ion = 0.050 M Volume of Ag+ solution = 100.0 mL = 0.100 L…