A simple method for the laboratory preparation of hydrogen involves reaction of zinc with hydrochloric acid; Zn(s) + 2 HCl(aq) → ZnCl 2(aq) + H 2(g) ΔH = -152.5 kJ How much heat in kilojoules is evolved if a total of 1094 mL of H 2 was collected over water at 28.00 ° C and an atmospheric pressure of 275.7 mm Hg. The partial pressure of water at this temperature is 28.35 mm Hg? Assume heat evolved is directly proportional to the moles produced.

Q: When a 4.00 g sample of KSCNKSCN is dissolved in water in a calorimeter that has a total heat…

A: Mas of KSCN = 4.00 g heat capacity = 3.83 kJ⋅K−1 change in temperature = 0.260 K

Q: In a coffee cup calorimeter, a student adds 2.50 g of calcium, followed by addition of 50.0 mL of…

A: Since the temperature change in positive, heat is absorbed by the solution and released by the…

Q: Determine the mass of CO2CO2 produced by burning enough carbon (in the form of charcoal) to produce…

A: The balanced chemical reaction is  C(s)+O2 (g)→CO2(g); ΔrH∘=−393.5 kJ-mol-1  The mass of CO2…

Q: A small piece of calcium carbonate was placed in a constant-volume calorimeter (Ccal=0.488  kJ/°C),…

A: Given data :  1. Ccal=0.488 kJ/°C 2. Change in temperature = 3.5 oC

Q: A 1.45 g sample of acetic acid , HC2H3O2 was burned in excess oxygen in a bomb calorimeter. The…

A: We have to predict the heat of combustion.

Q: When 1.81 g of zinc metal reacts with 100.00 g of 1.00M HCl in a coffee-cup calorimeter, the…

A: Zinc metal reacts with Concentrated HCl is an exothermic reaction(heat produced) thus temperature…

Q: Charcoal is primarily carbon. What mass of CO2CO2 is produced if you burn enough carbon (in the form…

A:

Q: When 50.0 mL of 1.20 M of HCl(aq) is combined with 50.0 mL of 1.30 M of NaOH(aq) in a coffee-cup…

A:

Q: When 0.525 g of toluene (C7H8) is combusted in a bomb calorimeter, thetemperature of the calorimeter…

A: First law of thermodynamics gives the relationship between the internal energy change (ΔErxn) and…

Q: What is the ΔHsoln for KF?

A:

Q: Consider the following thermochemical equation: 2A -> AA, ΔHrxn=−60.0J What is the heat associated…

A: You have given - ∆Hrxn  = -60.0 J

Q: When 5.40 g of a solid mixture composed of NH4Cl and CaCl2 was dissolved in 100.0 mL of water, the…

A: Given Mass of NH4Cl = 1.78 g Mass of CaCl2 = 3.26 g

Q: A calorimeter initially contains 165.0 mL of water at 21.3oC. When 2.72 g K is added to the water,…

A: Calorimeter is a device used for measuring the amount of heat evolved during a process. This is done…

Q: The heat capacity of a calorimeter is calibrated by adding 3.00 mL of water at 40 to the calorimeter…

A:

Q: A generic solid, X, has a molar mass of 76.0 g/mol. In a constant‑pressure calorimeter, 37.7 g of X…

A: Solution:-

Q: A calorimeter initially contains 165.0 mL of water at 21.3oC. When 2.72 g K is added to the water,…

A: Working formula Q = m×s×∆T m = mass of water; s = specific heat of water; ∆T = temperature change of…

Q: When 4.51 g of a solid mixture composed of NH¼CI and CaCI2 was dissolved in 100.0 mL of water, the…

A:

Q: Consider the following reaction: NacI (s) - Na* (aq) + Cl" (ag) AH = In a coffee-cup calorimeter you…

A: Initial temperature of solution Ti = 26.4 °C Final temperature of solution Tf = 24.1 °C Change in…

Q: Identifying the major species in weak acid or weak base equilibria The preparations of two aqueous…

A: Given,0.36 mol HCl is added to 1.0 L of a 1 M NH3 solutionacids:bases:other:0.1 mol of HI is added…

Q: A generic solid, X, has a molar mass of 65.9 g/mol. In a constant‑pressure calorimeter, 20.5 g of X…

A: Calorimetry can be used to determine the heat transfer associated with a reaction by measuring the…

Q: Consider the following reaction: 2C6H6() + 15 O2(g)- 12 CO2(g) + 6 H20() AH = -5.869 x 103 kJ An…

A: Each reaction takes place account to their stoichiometric radio and account to those things the heat…

Q: When 4.81 g of a solid mixture composed of NH4CI and Cačl2 was dissolved in 100.0 mL of water, the…

A: Please find your solution below :

Q: Given the following thermochemical equation: CaCO3(s) → CaO(s) +CO2 (g)…

A: Given, The following thermochemical equation: CaCO3(s) → CaO(s) +CO2 (g)…

Q: 1) Glucose, C6H12O6 (MM = 180 g/mol), is converted into ethyl alcohol, C2H5OH(l) in the fermentation…

A:

Q: 0.3 g of CaO was added to 59mL H2O at 23.5 degrees Celcius in a cup calorimeter to produce Ca(OH)2.…

A:

Q: A 13.6 g metal block is warmed to 79.7°C and plunged into an insulated calorimeter containing 46.2 g…

A:

Q: Deterioration of buildings, bridges, and other structuresthrough the rusting of iron costs millions…

A: In a balanced equation, the number of atoms on both sides of the equation should be the same. This…

Q: When 4.88 g of a solid mixture composed of NH4CI and CaC2 was dissolved in 100.0 mL of water, the…

A: When another component is added to a liquid (a solvent), the boiling point of the liquid (a solvent)…

Q: When 1.045 g of CaO is added to 50.0 mL of water at 25.0 PC in a calorimeter, the temperature of the…

A:

Q: When 5.69 g of a solid mixture composed of NH4Cl and CaCl2 was dissolved in 100.0 mL of water, the…

A: Given that

Q: How much heat was absorbed by the solution?

A: For constant pressure calorimeter, we know that The heat absorbed by the calorimeter is given by…

Q: A generic solid, X, has a molar mass of 61.8 g/mol. In a constant-pressure calorimeter, 18.6 g of X…

A:

Q: In a constant-volume calorimeter containing 1500.0 mL of water, a 143.9-gram piece of iron (Fe) rod…

A: Given: Volume of water = 1500.0 mL  Mass of iron = 143.9 g. Initial temperature of water = 17.11 oC…

Q: A 1.110-g sample of benzoic acid (HC7H5O2; molar mass = 122.12 g/mol) is burned in an excess of…

A: This problem can be solved by using the equation :                             q=mc∆Twhere q is the…

Q: A 1.00 g sample of MgCl2 produced a 10.00 °C increased in a calorimeter charged with 40.0mL of…

A: Mass of MgCl2 = 1.00 g Increase in temperature, ΔT = 10.00 °C Specific heat of MgCl2, C = 0.750…

Q: A quantity of 2.00 ×102 mL of 0.715 M HCl is mixed with 2.00 × 102 mL of 0.358 M Ba(OH)2 in a…

A: Molarity - ratio of number of moles of solute to the volume of solution in litres. Formula is,…

Q: A 1.00-g sample of hexane, C6H14, undergoes complete combustion with excess O2 in  a bomb…

A: Answer: Bomb calorimeter is a constant volume calorimeter, therefore enthalpy change calculated in…

Q: A 307-g sample of an unknown mineral was heated to 98/1°C and placed into a calorimeter containing…

A:

Q: constant‑pressure calorimeter, 23.323.3 g of X is dissolved in 297297 g of water at 23.00 °C.…

A:

Q: When a piece of unknown metal weighing 34.70 grams, and at a temperature of 67.60 °C, is placed in a…

A:

Q: When 60.0 mL of a 0.400 M solution of HNO3 (aq) is combined with 60.0 mL of a 0.400 M solution of…

A: Given density of solution is 1.04 g/mL and given specific heat capacity of the solution is 3.90…