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Question 1 A calorimeter is a device which can be used to determine the heat of...
Question 1
A calorimeter is a device which can be used to determine the heat of reaction. The process of measuring the heat is known as calorimetry. Based on the above statement and from your further findings, answer the following questions:
a) Analyze the operational principle of a calorimeter in a proper sequence. Organize your answer in the form of a flow diagram :
b) Outline how does the operational principle of the calorimeter is related to the First Law of Thermodynamics.
Question 2
Electroplating is a process of passing through an electrical current through an electrolyte solution, which the intention to change the surface properties of an object; such as corrosion protection, abrasion/wear resistance and aesthetic qualities. Electoplating has been widely used in jewelry making, which can enhanced the aesthetic value and its wearability. Based on the electroplating process in jewelry making, answer the following questions:
a) Identify one (1) type of material which can be used for the jewelry electroplating.
b) Sketch the diagram of the electrolysis cell (based on the material selected in a). The sketch must be hand-drawn, without any copy and paste from any source.
c) Analyze all the reactions involve in the process (half cell reactions and overall cell reaction).
d) Identify the oxidizing agent and reducing agent. Provide the reason(s) for the identification.
e) Analyze the limitation or constraint of this process.
Solutions
Amanda K answered 7 months agoRelated Solutions
A bomb calorimeter, or constant volume calorimeter, is a device often used to determine the heat...
A bomb calorimeter, or constant volume calorimeter, is a device
often used to determine the heat of combustion of fuels and the
energy content of foods. Since the "bomb" itself can absorb energy,
a separate experiment is needed to determine the heat capacity of
the calorimeter. This is known as calibrating the calorimeter. In
the laboratory a student burns a 0.466-g sample of 1,8-octanediol
(C8H18O2) in a bomb calorimeter containing 1200. g of water. The
temperature increases from 25.90 °C...
A)A bomb calorimeter, or constant volume calorimeter, is a device often used to determine the heat...
A)A bomb calorimeter, or constant
volume calorimeter, is a device often used to determine the heat of
combustion of fuels and the energy content of foods.
Since the "bomb" itself can absorb energy, a separate experiment is
needed to determine the heat capacity of the calorimeter. This is
known as calibrating the
calorimeter.
In the laboratory a student burns a 0.392-g sample
of bisphenol A
(C15H16O2) in a
bomb calorimeter containing 1140. g of water. The
temperature increases from 25.00...
A bomb calorimeter, or constant volume calorimeter, is a device often used to determine the heat...
A bomb calorimeter, or constant volume calorimeter, is a device
often used to determine the heat of combustion of fuels and the
energy content of foods. Since the "bomb" itself can absorb energy,
a separate experiment is needed to determine the heat capacity of
the calorimeter. This is known as calibrating the calorimeter. In
the laboratory a student burns a 0.337-g sample of bisphenol A
(C15H16O2) in a bomb calorimeter containing 1040. g of water. The
temperature increases from 25.90...
1.A bomb calorimeter, or a constant volume calorimeter, is a device often used to determine the...
1.A bomb calorimeter, or a constant volume calorimeter, is a
device often used to determine the heat of combustion of fuels and
the energy content of foods. In an experiment, a 0.3807 g sample of
1,6-hexanediol (C6H14O2) is burned completely in a bomb
calorimeter. The calorimeter is surrounded by 1.139×103 g of water.
During the combustion the temperature increases from 25.30 to 27.59
°C. The heat capacity of water is 4.184 J g-1°C-1. The heat
capacity of the calorimeter was...
An ice “calorimeter” can be used to determine the specific heat capacity of a metal. A...
An ice “calorimeter” can be used to determine the specific heat
capacity of a metal. A piece of hot metal is
dropped onto a weighed
quantity of ice. The energy transferred from the metal to the ice
can be determined
from the amount of ice
melted. Suppose you heat a 9.36-g piece of platinum to 98.6 °C in a
boiling water bath
and then drop it onto ice
at 0.0 °C. When the temperature of the metal...
In the laboratory a"coffee cup" calorimeter, or constant pressure calorimeter, is frequently used to determine the...
In the laboratory a"coffee cup" calorimeter, or constant
pressure calorimeter, is frequently used to determine the specific
heat of a solid, or to measure the energy of a solution phase
reaction. A student heats65.62grams ofzincto98.24 °C and then drops
it into a cup containing75.87grams of water at23.87 °C. She
measures the final temperature to be29.24 °C. The heat capacity of
the calorimeter (sometimes referred to as thecalorimeter constant)
was determined in a separate experiment to be1.54J/°C. Assuming
that no heat...
In the laboratory a student uses a "coffee cup" calorimeter to determine the specific heat of...
In the laboratory a student uses a "coffee cup" calorimeter to
determine the specific heat of a metal. She heats 18.3 grams of
gold to 99.38°C and then drops it into a cup containing 80.2 grams
of water at 20.87°C. She measures the final temperature to be
21.40°C. Assuming that all of the heat is transferred to the water,
she calculates the specific heat of gold to be J/g°C.
How to determine the heat of formation of sucrose after a bomb calorimeter experiment?
How to determine the heat of formation of sucrose after a bomb
calorimeter experiment?
Heat effects of chemical or physical processes can be measured in a calorimeter.
Can someone please paraphrase this to me.... if possible.
Heat effects of chemical or physical processes can be measured
in a calorimeter. Instruments of widely varying designs are
employed to accommodate the large range of experimental conditions
encountered. For instance, the heat effects to be measured may
range from milliJoules to milliliter, quantities involved from
fractions of milliliters to hundreds of milliliters and from
milligrams to grams, operating temperatures from below liquid
helium temperature (4.2 K) to 2000o C, and...
A calorimeter that measures an exothermic heat of reaction by the quantity of ice that can...
A calorimeter that measures an exothermic heat of reaction by
the quantity of ice that can be melted is called an ice
calorimeter. Consider a reaction in which 0.00400 mol of methane
gas, CH4 (g), is burned completely at constant pressure in the
presence of excess air. The heat liberated from the reaction melted
10.7 g of ice at 0 degrees celcius (the heat required to melt the
ice (heat of fusion) is 333.5 J/g). What is the change in...
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