Define calorimetry and describe two commonly used calorimeters. In a calorimetric measurement, why is  it important that we know the heat capacity of the  calorimeter? How is this value determined?

Q: temperature of carbon dioxide is raised from room temperature to 100 °C. The heat capacity of carbon…

A:

Q: 2. A 1.07 g sample of sulfur was burned in a bomb calorimeter with calorimeter constant of 2.03…

A: Mass of sulfur sample = m = 1.07 g Calorimeter constant = C = 2.03 Kcal/°C Temperature change = ∆T =…

Q: which of the following signs on q and w represent a system that is doing work on the surroundings…

A: Given :-  System is doing work on surrounding  System is gaining heat from surrounding  To…

Q: 1. What is the essence of detemining the heat capacity of the calorimeter? Is it possible to replace…

A: According to Q&A guidelines of Bartleby, we are supposed to answer only the first sub-parts of…

Q: Why can we measure only changes in enthalpy, not absolute enthalpy values?

A: Enthalpy is the sum of the system's internal energy and the product of its pressure and volume.…

Q: Define molar heat capacity. O the quantity of heat required to change a system's temperature by 1°C…

A: Molar heat capacity is defined as the quantity of heat required to raise the temperature of one mole…

Q: In the laboratory a "coffee cup" calorimeter, or constant pressure calorimeter, is frequently used…

A: Given: Mass of Ni, m= 90.16g initial temperature of Ni, T1= 98.98C∘ Final temperature of Ni, T…

Q: How do I find the adjusted heat capacity of calorimeter?

A: m = mass, measured in grams Δt = temperature change, °C or K. The heat capacity, C, of a substance…

Q: What does "Enthalpy change of a chemical reaction" mean?

A: Enthalpy change of a chemical reaction is defined as the amount of heat released or absorbed in the…

Q: How can you measure the heat capacity of a calorimeter?

A: From the amount of water in the calorimeter and the temperature change undergone by the water, the…

Q: he energy density of a fuel is 64.36 kJ/g. A 63.61-g sample is burned in an apparatus with a…

A: Energy density= 64.36 kJ/g  Mass = 63.61 g  Energy(q) ) = 64.36 × 63.61    = 4093.9396 kJ  Energy…

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

A: True.

Q: Briefly explain: - why is it necessary to revise the heat capacity of the calorimeter when a solid…

A: A question based on thermochemistry that is to be accomplished.

Q: When a student mixes 3.9537g of NaHCO3 with excess HCI in a constant pressure calorimeter the…

A: To calculate the enthalpy change , we would first calculate heat of solution .  Then we would…

Q: Why is there a discrepancy between an enthalpy of reaction obtained from calorimetry and one…

A: Calorimetry is an experiment which  is used in the determination of the heat of a reaction whereas…

Q: Which is/are state functions: I. work, w II. Heat, q III. enthalpy, H IV. Internal energy, E

A: Here we have to choose which are state function.

Q: What is molar enthalpy?

A: Given, define molar enthalpy.

Q: What is a standard state? What is the standard enthalpy change for a reaction?

A: Standard state of a material is the reference point  that is used to calculate its properties under…

Q: In a coffee-cup calorimeter, what are the factors that affect the heat capacity of calorimeter? How…

A: A coffee cup calorimeter is a constant pressure calorimeter. As such, the heat that is measured in…

Q: Is enthalpy change an extenive or intensive property? What impact does this have on the quality of a…

A: The enthalpy of a system is nothing but the sum of internal energies of the system and its…

Q: Enthalpy is a state function. What does it mean to be a state function?

A:

Q: 96.32grams of lead to 99.35 °C and then drops it into a cup containing 80.30 grams of water at 20.80…

A: Using this formula q= ms∆T  Specific heat of water=4.18j/g°c

Q: In the laboratory a "coffee cup" calorimeter, or constant pressure calorimeter, is frequently used…

A:

Q: A bomb calorimeter has a heat capacity of 2.47 kJ/K. When a 0.104-g sample of a certain hydrocarbon…

A: Given: Heat capacity of bomb calorimeter, c = 2.47 kJ/K Change in temperature, delta T = 2.14 K

Q: When 2.0 mole of ZnO(s) decomposes to Zn(s) and O2 (g), the Δ H = 696 kJ of heat energy. What does…

A: Reaction involved:-  2ZnO(s) = 2Zn(s) + O2 (g)  ∆H = 696 kJ

Q: 1.922 g methanol (CH3OH) was burned in a constant-volume bomb calorimeter. Consequently, the…

A:

Q: 1. What and expound the First law of Thermodynamics? 2. Define in your own words A. Specific heat B.…

A: What is first law of thermodynamic, explanation is given below.

Q: 1. What is the essence of determining the heat capacity of the calorimeter? Is it possible to…

A: 1. To determine the essence of the heat capacity of the calorimeter.

Q: 75.0 mL of 1.75 M HCl and 125.0 mL of 1.50 M NaOH are combined in a constant-pressure calorimeter.…

A:

Q: According to the first law of thermodynamics, what quantity is conserved?  What is meant by the…

A: According to First law of thermodynamics, energy cannot be created nor destroyed but can be changed…

Q: In the laboratory a "coffee cup" calorimeter, or constant pressure calorimeter, is frequently used…

A: When lead is dropped into the water, the temperature of lead is decreased (exothermic) whereas the…

Q: When measuring the enthalpy of combustion of a very small amount of material, would you prefer to…

A: The amount of heat that is absorbed by calorimeter is given as follows: Here, c is the heat…

Q: What are the assumptions that are made when performing calorimetry to determine molar enthalpies?…

A: Calorimeter :  A calorimeter is a insulated device used for heat measurements. It mainly consists of…

Q: In the laboratory a "coffee cup" calorimeter, or constant pressure calorimeter, is frequently used…

A:

Q: In the laboratory a "coffee cup" calorimeter, or constant pressure calorimeter, is frequently used…

A: The amount of heat absorbed (or released) by 1 gram of a substance to change its temperature by 1oC…

Q: In the laboratory a "coffee cup" calorimeter, or constant pressure calorimeter, is frequently used…

A: Given: Mass of nickel = 97.63 g Mass of water  = 78.82 g Initial temperature of nickel   = 97.98 oC…

Q: 3. A 135.0 g sample of dilute hydrochloric acid is placed in a copper calorimeter with a mass of 465…

A: Q3) Given that: Mass of HCl sample = 135.0 g Mass of copper calorimeter = 465 g Specific heat…

Q: What is the molar heat capacity of liquid water?

A: Molar heat capacity of a substance (sm) is calculated by multiplying the specific heat capacity (c)…

Q: In the laboratory a "coffee cup" calorimeter, or constant pressure calorimeter, is frequently used…

A: We have given 95.21gm of nickel Tinitial( nickel) =97.69°C Mass of water = 80.66gm…

Q: Two metals of equal mass with different heat capacities are subjected to the same amount of heat.…

A: Please have a look on the answer:

Q: sample of heated metal is added to a coffee-cup calorimeter. What part of the setup functions as the…

A: During a chemical reaction, some heat is released or gained. This heat change is measured with the…

Q: In the laboratory a "coffee cup" calorimeter, or constant pressure calorimeter, is frequently used…

A: Specific heat- It is the amount of heat required to raise the temperature of 1g of substance by 10…

Q: A 0.1920 g sample of quinone (C6H4O2) is burned in a bomb calorimeter that has a heat capacity of…

A: Given, heat capacityof calorimeter(Ccal)= 1.56 kJ/°C temperature change(∆T) = 3.84 °C => heat…

Q: What effect would leaving the lid off the coffee-cup calorimeter have on the specific heat (higher,…

A: Less specific heat, because only some amount of the heat is transferred to the water whereas the…

Q: What does it mean when we say that enthalpy is a state function?

A: