Higher Computing Coursework

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Higher Computing Coursework Help Higher Computing Coursework Help Higher Computing Coursework Help
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 Rate Of Reaction Lab Report
2a. As the concentration of acid becomes higher or more acidic, it takes less time for the reaction to
occur which means that an increased rate of reaction has been formed.
2b. As the surface area of the magnesium metal increases/the magnesium piece becomes smaller, it
takes less time for the reaction to occur as more molecules are present which increases number of
collisions and an increased rate of reaction has been formed.
2c. As the temperature of the acid increases or becomes hotter, it takes less time for the reaction to
occur which means that an increased rate of reaction has been formed.

3. As the concentration of Hydrochloric acid was altered throughout the experiment and doubled
from 3.0 M to 6.0 M for example, the reaction rate ... Show more content on Helpwriting.net ...
Concentration, Surface area, and Temperature) that played a role in controlling rate of reaction
and record observations and key characteristics that were found when altering the standard
composition of each factor. At the end of the investigation, there was a clear pattern that was
present throughout all three factors. As you increase anything whether it be concentration,
temperature, or surface area, the rate of reaction increased also. By increasing temperature, the
speed of molecules increases encountering a larger quantity of other molecules increasing
collisions and rate of reaction. This was clear in our observations table as our results show that
warmer the temperature, the quicker the rate of reaction. 100 degrees Celsius had the quickest
rate while 6 degrees Celsius had the slowest rate of reaction. Increasing the concentration allows
molecules to be closely packed together making them more likely to collide and have a quicker
rate of reaction. As viewed in the observation tables, the recorded results mirror this theory. The
most concentrated substance at 6.0 M had the quickest reaction time while the least concentrated
substance at 1.0 M had the slowest reaction time. Finally, increasing the surface area increases the
number of collisions that may occur meaning the rate of reaction increases. Surface area increases
by decreasing the size of the pieces of reactants. This can be shown in the observation table above
as the rolled magnesium strip which had the smallest surface area took the longest too react while
the sliver of magnesium which was very small had the largest surface area and its rate of reaction
was the quickest. This shows how an increase in any factor will potentially increase rate of reaction.
Two sources of error that were present could have been contaminated materials and size of material
that substances were reacting in. Although some problems occurred,
 Forensic Accounting
A study conducted by two professors from Rider College interviewed over 150 lawyers, Certified
Public Accountants (CPAs) and accounting educators. The study identified sixteen skills needed by
forensic accountants. According to the study, the five most important skills are analytical skills,
basic accounting skills, problem solving skills, data analysis skills and interviewing skills
(McMullen Sanchez, 2010). Forensic accountants need analytical skills because as they review
financial reports and other source documents, they need to analyze the validity of each transaction
and determine if the company recorded the transaction fairly. The forensic accountantneeds the
ability to analyze where the data came from and whether the data accurately reflects the numbers
posted in the financial reports (McIntosh, n.d.). With an in house forensic accountant, this will
ensure the company s financial state is accurately reflected while an independent forensic accountant
can verify the accuracy of the reports, both of which help investors determine if the company is
worth investing in. Accounting is widely regarded as the language of business (McMullen and
Sanchez, 2010, pg.1). As such, the need for basic accounting skills is self evident, for a forensic
accountant to be able to review financial reports and other source documents he needs to have an
understanding of basic accounting. Without that understanding, the forensic accountant couldn t
determine if the entries in the
 How Was The X-Ray Diffraction Spectrum Of All Sulfurized...
3.1 Structural properties
Figure 1 showed the X ray diffraction spectrum of all sulfurized Co doped FeS2 films. The
comparison with JCPDS 01 071 1680 indicated a pure cubic FeS2 structure for all these samples.
The ratio between peaks from each sample demonstrated a poly crystal structure. Also, no clear
preferential growth direction could be observed for each sample. The peaks of all Co doped films
were very close to the pure iron pyrite peaks. No clear peak shift could be observed. This indicated
that shallow cobalt doping had little impact on the crystal structure of FeS2.
Scherrer equation, as shown in equation 1, was applied to estimate the average crystallite size of
these sulfurized films. . ... Show more content on Helpwriting.net ...
As more electrons were introduced, the net carrier concentration started to decrease until the
electrons became the majority carriers. This process may explain the change of conduction type
and carrier concentrations. The carrier mobility, however, decreased gradually from 6.52 cm2
/V*s to 4.30 cm2/V*s as cobalt doping increased from 2 at% to 6 at%. This phenomenon could be
explained as the decreased mean free path of charged carriers because of the larger size of the
incorporated cobalt ions than the original iron ions. After switching to n type, the increasing carrier
concentration may also contributed to the reducing of carrier mobility. As a consequence, cobalt
doping served well as an n type dopant after 3 at% doping level.

3.2.2 Temperature Dependence

Figure 2 showed the relationship between the reciprocal of resistivity to the reciprocal of
temperature, graphed as a logarithmic plot. The resistance change of the Co doped FeS2 samples
with Al electrodes were collected from room temperature (25oC) to 140oC. From Fig.2, the
resistance of all samples decreased while heating. This showed a general semiconductor behavior of
these Co doped FeS2 films. The data in Fig.2 showed a linear dependence for each sample. The
fitting lines could be described by Arrhenius equation as shown in equation 2: . (2)
Here σ, k, T means conductivity, Boltzmann constant and temperature,
 Analysis Of The Poem The Oysters By Tobias Wolff
There are two short stories with different settings. Oysters, written by Anton Chekhov, takes a
place in the nineteenth century Moscow. It begins with a flashback, which the author recalls on
the day that he and his father try to beg for alms in order to satisfy their hunger, which happens
when he is a child. While his father hesitates to ask people for alms, he sees a word oysters on a
placard. Since he does not know what oysters look like, he asks his father what oysters are and
imagines a delicious fish soup, however, when his father tells what oysters really look like, he starts
to feel disgusted. When he is crying for oysters, two gentlemen drag him to the restaurant to let him
eat oysters. In the end, he gets to eat oysters, but it does not make him satisfied, in fact, it makes him
sick.
On the other hand, Powder, written by Tobias Wolff, takes a place in the modern state of
Washington. The author begins with the story by telling that the father and his son go to Mount
Baker for skiing. The father has a difficult relationship with his wife that they are about to break
up. When he and his son decide to go home, they are unable to do so because the road is closed
due to snow. Since the father wants to go home as quick as possible, he tries to call state troopers to
move away, which is breaking law. Oysters and Powder seems to have few relationships with each
other because of the different settings. However, they contain some important similarities and
 Euthanasi Voluntary And Involuntary
Can you imagine that you are lying in bed and feeling extreme pain, caused by disease, and you
cannot do anything to stop it? No one would like to find themselves in such circumstances.
Unfortunately, not every person spends the last days or weeks of life in a peaceful manner. Instead,
there is a possibility of uncontrolled physical agony and emotional distress (Bruce and Boston 1).
One of the ways of preventing sufferingat the end of life is mercy killing, or euthanasia. There are
two types of euthanasia voluntary and involuntary. Involuntary, or passive euthanasia, occurs when a
person is not able to give permission for his or her death, e.g. if the person is in a comatose
condition; voluntary euthanasia is performed with a help of... Show more content on Helpwriting.net
...
Some of the symptoms are intense somatic pain in the affected area, which can be the whole body
due to fast spread of cancer. Studies show that pain can be controlled in about 95 out of every 100
people (Cancer Research 1). However, if the pain becomes chronic, in most cases there is no way
to relieve it. Very young children have to suffer intensely for months while going through
medical procedures with negative side effects. Although 30 to 50 percent of patients survive after
Even if the metastases to the bones (Chicago Medicine), doctors usually can predict if child will
live. If it is obvious that the child will not survive, why to cause great suffering by keeping him or
her alive for a few months before the disease alone caused death? Another example of cancer with
incapable physical and emotional pain is a facial tumor. It can be easily cured with surgery in its
earliest stages; however, if the tumor grows aggressively fast it can cause difficulty swallowing and
talking, and prolonged pain. It can also cause emotional pain due to the disfigurement of the disease
and its treatment. Most people care about their appearance and seeing in what way cancer destroys
their face can cause embarrassment, mental turmoil, and depression. For example, one study
described the last days of a lovely, delicate,
 Michelangelo s Influence On The Development Of Western Art
Michelangelo was an Italian Renaissance painter, sculptor, architect, poet, and engineer. His most
well known technique was fresco. He had a major influence on the development of western art. He
also influenced many artists in the Renaissance. He was born in Caprese, Italy in the year of 1475.
He considered Florence to be his home at heart. During the Renaissance Era, Florence was a center
of art. Michelangelosaw that as an opportunity to develop his true talents. At 13, Michelangelo was
an apprentice to painter Domenico Ghirlandaio, particularly known for his murals. Although
Michelangelo expressed his genius in many media, he would always consider himself a sculptor
first. Michelangelo has always been known as one of the most famous Renaissance artists because of
his awe inspiring paintings, Sistine Chapel Ceiling, The Last Judgment, and The Torment of Saint
Anthony, and artistic panache.
The Torment of Saint Anthony is the earliest known painting by Michelangelo. This painting shows
Saint Anthony being accosted by demons in midair. Michelangelo finished this painting at the age of
twelve or thirteen in. This painting shows a jumpstart of his many talents. The mediums used in this
artwork include tempera and oils on wood panel. The color scheme is very cool. The green and red
of the demons contrasts the background, making the black robe stand out more. The lines in the
painting, which are vertical, puts an effect that the demons appear more realistic, making you
 Gay-Lussac Lab Report
100g of MetalFormula of OxideMass O2 Needed (g)Mass of Oxide Formed
LithiumLi2O115215
IronFe2O343143
ZincZnO49149
LeadPbO215115

Describe the contribution of Gay Lussac to the understanding of gaseous reactions and apply this to
an understanding of the mole concept
Joseph Gay Lussac s Law
The law of combining volumes: When measured at constant temperature and pressure, the volumes
of gases in a chemical reaction show simple, whole number ratio s to each other.
E.g. 1L Hydrogen(gas) + 1L Chlorine(gas) = 2L Hydrogen Chloride(gas)
E.g. 2L Hydrogen(gas) + 1L Oxygen(gas) = 2L Water(gas)
E.g. 3L Hydrogen(gas)+1L Nitrogen(gas) = 2L Ammonia(gas)
(Simple Ratios)
Recount Avogadro s law and describe its importance in developing the mole concept ... Show more
content on Helpwriting.net ...
Distinguish between empirical formulae and molecular formulae
A molecular formula really does describe the atoms present in a molecule.
The molecular compound methane has formula CH4, because that s exactly what each molecule
contains... 1 carbon and 4 hydrogen atoms.
Lattice structures, either ionic or covalent are NOT molecular. E.g. Sodium chloride, NaCl, salt.
The formula does NOT describe a molecule, but only gives the simplest ratio between the bonded
atoms... This is the empirical formula Number of Moles in a Given Mass N=m/MM No. Of moles
= mass of substance/molar mass
5.The relative abundance and ease of extraction of metals influences their value and breadth of use in
the community
Define the terms mineral and ore with reference to economic and non economic deposits of natural
 John Lewis Reflection
Mahatma Gandhi died nearly seventy years ago, and Jesus Christ died over two thousand years
ago; yet their powerful message still continues to inspire lives. One example of someone who was
deeply touched by the teaching of Gandhi and Christ is John Lewis. In March: Book one, written
by John Lewis and Andrew Aydin, we can clearly see how Lewis incorporated Christianity and
Gandhi s ideas of peaceful protest into the civil rights movement. The book tells an eventful story
of John Lewis life. As Lewis grew up, his faith strengthened and he began involving himself in the
civil rights movement. He played a major role in desegregating department store lunch counters
by using Gandhi and Christ s ideas of loving your enemy. Although significant people John Lewis
had met, such as Martin Luther King, clearly played a key role in developing his character, it is
evident throughout the trilogy that the people who impacted John Lewis the most were those he
had never met. The teachings of Jesus Christ and Mahatma Gandhi appear to have positively
influenced Lewis life in ways no one he met had. It is obvious that John Lewis was clearly a
Christ follower. This is evident throughout both book one and two. All through John s life, from
when he was not even able to read, to when he was older and able to write his own book, John
stayed true to his faith in God. He states, Growing up, what I really wanted to be was a preacher. My
uncle gave me a bible when I was four (Lewis and
 The Struggle For Improving Reproductive Rights
Her Body, Her Rights Throughout American history, women have faced many challenges to earn
equal rights in almost all aspects of life. Although changes have been made, today there are still
battle to be won. One of these issues is the struggle for improving reproductive rights. Women are
often judged for their maternal decisions, whether that is in choosing surrogacy, abortion, and even
those who choose different forms of contraception. Over the years, Planned Parenthood and other
health services have recieved a negative connotation for what services they provide, especially on
the basis of providing abortion services. With our new president in office, women are concerned that
their reproductive rights, such as the right to have an... Show more content on Helpwriting.net ...
This makes for a major divide in what should be done in the case of women having an abortion. In
Paula Abram s The Bad Mother: Stigma, Abortions, and Surrogacy, she talks about how stigma is
placed on both surrogacy and abortion because conservatives view them both as unnatural ways of
maternity. What people on this side of the argument fail to understand is that women seek a
surrogate when they are physically incapable of carrying a child, but want to start a family. Stigma
is tied heavily into surrogacy, because not only are women seeking this service, but gay and trans
people seek to start families, and use surrogacy to do so. Stigma is also placed here because others
believe that surrogacy disrupts the traditional expectations regarding pregnancy. But because of
recent laws that allowed gay couples the right to marry, this opened up the opportunity for gay and
trans couples to start families. This is not to say that gay and trans couples weren t already starting
families through surrogacy and adoption, but the right to marry allows them the opportunity to
make for a more traditional process of marriage and family. Surrogacy has allowed married couples,
unmarried couples, and even singles to raise children and families, which may seem untraditional to
some, but a way of life for others. On the spectrum of abortion, most conservatives view abortion as
the murder of an unborn child. Most conservatives will