When 15.3 g of sodium nitrate was dissolved in water in a calorimeter, the temperature fell from 25.00 °C to 21.56 °C. If the heat capacity of the solution and the calorimeter is 1071 J/°C, what is the enthalpy change for the process when 1 mol of sodium nitrate NaNO3 dissolves in water?

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A: Since you have posted multiple question, the answer for first question is given below. Kindly repost…

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Q: 2. A system performs 3.63 kJ of work and gives off 8.98 kJ of heat. What is the change in energy of…

A: To solve this problem we will use First Law of Thermodynamics  .  According to this law  ∆E = q + w…

Q: The specific heat of an unknown metal is calculated to be 3.74J/g*C. What is the mass of the sample…

A: Answer is explained below.

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A: For an Automobile, Mass, m = 2240 pound  Velocity = 67.8 km hr-1  Kinetic Energy, Ek = ?

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Q: A system receives 315J of heat and delivers 200. J of work to its surroundings, what is the change…

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Q: what quantity of heat energy must have been applied to a block of aluminum weighing 38.4g of the…

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Q: Consider the following equation for the combustion of acetone (C3H6O), the main ingredient in nail…

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