Why did you use 4.184 J/goC as the specific heat capacities of the solutions? a. Because all kinds of solution have a constanst specific heat capacity of 4.184 J/goC. b. Because it was assumed that the solutions are concentrated. c. Because it was assumed that the solutions are dilute. d. Because this specific heat capacity is constant for solutions performed in any constant-pressure calorimeter.

Q: 10. A reaction known to release 1.78kJ of heat takes place in a calorimeter containing 0.10OL of…

A: Given: Heat released = 1.78 kJ temperature change = 3.65 oC Volume of solution = 0.1 L = 100.0 mL…

Q: What common substance has a very high heat capacity?

A: Heat capacity or thermal capacity is a physical property of matter, defined as the amount of heat to…

Q: A 56.59 g sample of a substance is initially at 25.6 °C. After absorbing 2789 J of heat, the…

A:

Q: 10. Explain enthalpy, entropy, and internal energy.

A: Enthalpy:-Enthalpy is the measurement of energy in a thermodynamic system. The quantity of enthalpy…

Q: A heated gas expands and presses on a piston. In this example, work is done: A) By the gas on the…

A: If the gas is heated, it will expand and push the piston up, thereby doing work on thepiston

Q: 1. A metal sample weighing 35.0 g and at a temperature of 99.1°C was placed in in a calorimeter at…

A: Mass of metal sample , m = 35.0 g

Q: If a student used a sample of metal that was wet, several percent of the apparent mass of the metal…

A: Heat capacity is the amount of heat energy required by a substance to raise its temperature by 1oC.…

Q: You are studying a chemical reaction. That reaction (the system) loses heat to the surroundings. O…

A: Endothermic reactions are those reactions in which heat energy is absorbed from the surroundings and…

Q: True or False? Because a state function depends on the current equilibrium of the system, a set of…

A: True.

Q: 1. A gas expands from 250 to 1000. mL at constant temperature. Calculate the worl done in joules…

A:

Q: How do I find heat absorbed by a calorimeter alone, and also heat absorbed by the conents of the…

A: The amount of heat or energy released or gained during the process is measured by using calorimeter.

Q: For a certain chemical reaction, the AH of enthalpy is 232.4 kJ per one mole of reactant X. If 3 mol…

A: Enthalpy is the heat content of the system. For a reaction,change is energy is called enthalpy of…

Q: A 25.0 mL solution of 1.00 mol/L HCI is mixed with 25.0 mL solution of 1.00 mol/L NaOH and allowed…

A: This question is based on enthalpy calculation.

Q: A 7.37 g piece of tungsten is placed into a boiling water bath until it is at thermal equilibrium.…

A: A numerical problem based on chemical thermodynamics that is to be accomplished.

Q: In parts 2, 3 and 4 of this lab, you will be conducting calorimetry experiments on neutralization…

A: In calorimeter, the heat of the reaction is calculated using the formula q=m×c×∆T where m is the…

Q: Consider a substance with a heat of solution (AHon) of -16.7 kJ/mol. 0.00100 mol of this substance…

A: The amount of heat released on dissolution of one mole of the solute in water is equal to 16700 J…

Q: Which of the following descriptions and/or equations best represent the enthalpy change of a system?…

A: Given statements,(A) The sum of the internal energy and the pressure-volume product of a system.(B)…

Q: 8. You pour equal masses of liquid A and liquid B into a coffee cup calorimeter. Liquid A starts at…

A: The mass of liquid A and liquid B is the same.Initial temperature of liquid A = Initial temperature…

Q: What is the enthalpy change, Delta Hrxn, for the following reaction?      2 RbI (s)  +  Cl2 (g)…

A: Enthalpy is a state function, so we determine the change of enthalpy of a reaction by subtracting…

Q: 3. Sodium hydroxide gives off 44.5 kJ of heat per mol when dissolved in water. Write the balanced…

A: An EXOTHERMIC ( heat is released) thermochemical reaction equation is written as Reactants…

Q: Propose a mechanism and predict the major product.

A: The reaction of alkanes with Cl2 is a free radical reaction.

Q: Which Slatement is True? O a. The heat capacity of a substance does not depend on the amount of…

A: extensive properties are the properties which depends upon the amount of the substance , heat…

Q: energy

A:

Q: A 11.08 gram sample is heated to an initial temperature of 100 oC. The sample is then placed in a…

A: Mass of sample = 11.08 g Initial temperature = 100 ◦C Final temperature = 27 ◦C

Q: Of the following statements about state function which is(are) correct? I. The value of a state…

A: In this question, we have to find out the correct answer of given problem by the help of the…

Q: A 1.547 g sample of a new organic material is combusted in a bomb calorimeter. The temperature of…

A: Given,mass of a new organic material = 1.547 gInitial temperature = 23.01 oCFinal temperature =…

Q: What is the heat capacity of 2.00 moles of liquid water?

A: Given: heat capacity of 2.00 moles of liquid water   To find: find capacity of 2.00 moles of liquid…

Q: 14. What is heat capacity? How is it used? Why is it important in chemistry? Explain your ideas and…

A: Heat capacity -  It it the amount of heat or energy required to increase the temperature of a…

Q: The specific heat capacity of silver is 0.24 J/°C.g. a. Calculate the energy required to raise the…

A: 1) Since the energy of heating process is given by Q = m C  ΔT where m = mass = 143 gC = specific…

Q: The enthalpy change of some reactions cannot be determined directly from calorimetric data and are…

A: Hess's law says that enthalpy change of any reaction is a fixed quantity and is independent of the…