Sodium chloride, the table salt (NaCl) is added in cooking to enhance the flavor of the food.  When 7.7 g of NaCl are added in 156 mL of water at 25.0oC in a coffee-cup calorimeter, 669 J of heat are absorbed.  (Assume that there is no change in volume, d=1.00 g/mL, specific heat=4.18 J/g.oC).

Q: The mixture of 44.0 mL of 0.280 M barium hydroxide and 44.0 mL of 0.300 M hydrobromic acid results…

A: No of moles of Ba(OH)2=  0.280 M × 0.044 L =0.01232 mol No of moles of HBr = 0.300 × 0.044 L =0.0132…

Q: Sodium chloride, the table salt (NaCl) is added in cooking to enhance the flavor of the food.  When…

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Q: What would be the impact to equilibrium if by adding a catalyst? Which direction would the reaction…

A: Adding the catalyst By adding catalyst to equilibrium reaction, the energy of activation of both…

Q: When a 8.00 g sample of KCI is dissolved in water in a calorimeter that has a total heat capacity of…

A: Given : Mass of KCl dissolved = 8 g Total heat capacity of calorimeter = 6.15 KJ/K And change in…

Q: Consider the system   4NH3(g) + 3O2(g)     2N2(g) + 6H2O(l)           ∆H= -1530.4 kJ   How will…

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Q: Consider the following chemical reaction that lustrates the industrial synthesis of nitric acid 3…

A: Given data ∆H°=-136.5 KJ∆S°=-287.5 J/K = -0.2875 KJ/KT=323.15 K To solve this question , first…

Q: Sodium chloride, the table salt (NaCl) is added in cooking to enhance the flavor of the food.  When…

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Q: You dissolve 4.93 g of sodium bicarbonate (molar mass 84.007 g/mol) in 98 g of distilled water if…

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Q: When a 7.00 g sample of KCN is dissolved in water in a calorimeter that has a total heat capacity of…

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Q: 9.91 g of MgSO₄ is placed into 100.0 mL of water. The water's temperature increases by 6.70 °C.…

A: Please find your solution below : Enthalpy of dissolution is defined as the change in enthalpy…

Q: Sodium chloride, the table salt (NaCl) is added in cooking to enhance the flavor of the food.  When…

A: specific heat capacity is defined as the amount of heat required to raise the temperature of a…

Q: 8.56 g of MgSO4 is placed into 100.0 mL of water. The water's temperature increases by 6.70 °C.…

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Q: In a coffee cup calorimeter, a student places 0.470 g of calcium, followed by addition of 50.0 mL of…

A: Given, maas of Ca= 0.470 g  As HCl have properties like water so density= 1g/ml  So mass od 50 ml…

Q: According to Le Chatelier’s Principle, does the following reaction shift towards reactants, towards…

A: Answer: This question is based on Le-chatalier's principle which suggests that on changing any…

Q: The following diagram represents the endothermic reaction at equilibrium at 25°C: heat +A(g) →2B(g)…

A: we have to select the correct representation of the system at equilibrium when temperature is 50°C

Q: When a 3.00 g sample of KCl is dissolved in water in a calorimeter that has a total heat capacity of…

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Q: Hydrogen chloride is formed by the reaction of hydrogen and chlorine gases. For the reaction at…

A: B) It will shift in the reverse direction and be reactant-favored until equilibrium is…

Q: Sodium chloride, the table salt (NaCl) is added in cooking to enhance the flavor of the food.  When…

A:

Q: At -6.52 °C the pressure equilibrium constant K = 6.2 for a certain reaction. Here are some facts…

A: Vant's Hoff equation relates the change in equilibrium constant with temperature as ln (K2K1) = -…

Q: 9. To 100.0 g water at 25.00°C in a well-insulated container is added a block of aluminum initially…

A: The amount of heat absorbed (or released) by fixed amount of a substance to change its temperature…

Q: A 76 ml solution of a dilute AGNO3 solution is added to 91 mL of a base solution in a coffee-cup…

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Q: For the reaction: H₂O(l) 2NH3(g) + CO₂(g) ΔΗ = – 330 kJ CO2(g) = (NH2)2CO(s) +

A: Answer: According to Le-chatalier's principle on changing any parameter of the system that is in…

Q: Ina constant-pressure calorimeter 50.0 ml of 0.330 m ba(oh)2 was added to 50.0 ml of 0.660 m hcl.…

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Q: 10.01 g of MgSO₄ is placed into 100.0 mL of water. The water's temperature increases by 6.70°C.…

A: Given data: 10.01 g of MgSO₄ 100.0 mL of water density of the water is 1.00 g/mL specific heat of…

Q: When 5.03 of solid potassium hydroxide are dissolved in 100.0 mL of distilled water in a coffee-cup…

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Q: When a 7.00 g sample of KCl is dissolved in water in a calorimeter that has a total heat capacity of…

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Q: 25.0 mL of 5 mol/L HCl is added to 30.0 mL of 1.50 mol/L NaOH. The temperature in the calorimeter…

A: The objective of the question is to calculate the molar enthalpy of neutralization for NaOH when it…

Q: 18.61 g of MgSO₄ is placed into 100.0 mL of water. The water's temperature increases by 6.70°C.…

A: The heat evolved in the dissolution of MgSO4 is being used by the solution to rise its temperature.…

Q: Zinc metal reacts with HCl according to the following balanced equation: Zn(s) + 2HCI(aq) ZnCl2(aq)…

A: Given , Initial temp= 21.60 °C Final temp = 24.60 °C  Mass of Zn = 0.14 g Molar mass = 65.38 g…

Q: Find the temperature at which K = 42.0 for the reaction H₂(g) + I2(g) 2HI(g). [Given: at 25°C, for…

A: We will first calculate ∆S° and ∆H° , then calculate temperature.

Q: Consider the following chemical equation for which the enthalpy of reaction equals +26.9 kJ. 2…

A: For the given equilibrium;    2 ICl(g)   <----------->  I2 (g) + Cl2(g)    ∆Hrxn. = +26.9 kJ…

Q: 5.21 g of MgSO₄ is placed into 100.0 mL of water. The water's temperature increases by 6.70°C.…

A: The enthalpy change during dissolution is equal to the heat absorbed by the solution.…

Q: Zinc metal reacts with hydrochloric acid according to the following balanced equation: Zn(s) +…

A: Calorimeters use a common equation -Hrxn is the heat released due to the reaction of two species. It…

Q: 3.76 g of MgSO4 is placed into 100.0 mL of water. The water's temperature increases by 6.70 °C.…

A: Heat absorbed by the solution is given by: q = mCv∆T Where, q = heat absorbed m = mass of the…

Q: 4.06 g of MgSO₄ is placed into 100.0 mL of water. The water's temperature increases by 6.70°C.…

A: Enthalpy of reaction is determine by change in enthalpy of product and reactant. Enthalpy of…