Titration

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Titration Lab

Introduction

A titration is a laboratory procedure involving the carefully measured and controlled addition of a solution from a buret into a measured volume of a sample solution. By definition, volumetric analysis is quantitative analysis using accurately measured titrated volumes of standard chemical solutions. Titration is an example of volumetric analysis because it involves accurately measured volumes of a sample solution for analysis. The type of titration carried out is acid base titration using HCl and NaCO. In this titration, three major steps involved were first measure out an amount of known solution, add indicator and three, to titrate using unknown solution. At the first colour change the titration would stop.

AbstractBuy Titration term paper

The purpose to this lab is to standardize an approximately 1 mol•L-1 solution of hydrochloric acid. There were many steps taken in this titration but the main steps were measuring out the amount of known solution, adding the indicator and finally, titrating the solution until the first colour change. In each trial, the initial reading, final reading and the volume of HCl used was recorded down as quantitative results. The average volume of hydrochloric acid was found to be 1.0mL. The amount of sodium carbonate in the 10.00ml of solution was found to b 0.05 mol. The amount of hydrogen chloride that was dissolved in the average volume of acid is 0.65g. Through these calculations, the concentration of hydrochloric acid was found to be 8. mol•L-1.

Purpose

Refer to handout "Standardize an Approximately 1 mol•L-1 Hydrochloric Acid"

Material and Method

Refer to handout "Standardize an Approximately 1 mol•L-1 Hydrochloric Acid"

Results

Quantitative Results

Trial Initial Final Reading (in mL) Volume HCl Used (in mL)

1 0. 1.4 1.

1.4 . 11.5

. 6. 1.4

Calculations

Average volume of HCl

1.mL + 11.5mL + 1.4mL = 1.0mL

Balanced chemical equation

HCl(aq) + NaCO(aq)  NaCl(aq) + HCO(l)

 NaCl(aq) + H0(l) + CO(g)

Amount of sodium carbonate in 10.0mL of solution

1) Find number of moles of in 10.00mL @ 0.500mol •L-1

nNaCO = 10.00mL x 1L x 0.500mol

1000ml 1L

= 0.005mol

) Find mass of NaCO using number of moles of NaCO and molar mass

MNaCO= 105. g/mol

mNaCO= 0.005 mol x 105.g

mol

=0.50g

Hydrogen chloride dissolved in the average volume of acid used

1) Find out how many moles of HCl reacted using molar ratio and the number of mole of

NaCO

nHCl = 0.005 mol NaCO x HCL

1 NaCO

= 0.01mol

) Find mass of HCl using number of moles of HCl and molar mass

MHCl = 6.46 g/mol

mHCl = 0.01mol x 6.46g

mol

= 0.65g

Concentration of HCL

C= nd

V

[HC] = 0.01mol

0.010L

= 8. mol•L-1

Conclusion

The purpose of the lab was to standardize an approximately 1 mol•L-1 solution of hydrochloric acid. To standardize the solution of hydrochloric acid the actual concentration of the solution was needed. In conclusion, to standardize the solution of hydrochloric acid the calculations of the concentration are needed to be done first.

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Oedipus Rex, "Fait versus Free Will

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My essay is about stupid people. I feel that people these days do not know who they really are. Most white teenagers think that they are black for some odd reason. I dont understand why there is such stupid hip hop influence on the world these days. It is really starting to piss me off. What pisses me off the most is the use of the word nigga. Everytime I hear anybody use this world I feel like hitting them in their stupid mouths so they will shut up. For the most part though I cant stand it when white people use this sensless word. I mean seriously didnt we fight a war over the damn word and discrimination against these people. I just cant believe people lost their lives so they could just call eachother this. None of this makes any sense and it really pisses me off that people are using this ignorant word as a sign of being cool. There is not much that i can do about it but one of our presidents was murdered because he didnt want to keep the balcks as slaves. In the past though people like Martin Luther King Jr. have died do to the fact that they didnt believe in discrimination against blacks yet people these days dont take that in consideration and just through all of his work in the trash using one of the most discriminating words within their hip hop lives which is nigga. You know I guess all that I have to say now is that I hope someone out there will help me fight the use of this stupid and ignorant word by when you see someone in the hall using this word you no longer sit there and let it go but say something and express your feelings about how you feel. Fight it poeple, you must it is your only choice.

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Mary rowlandson and frankenstein

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Adapting and surviving within new worlds.

In both Mary Shelley's Frankenstein and Mary Rowlandson's The Sovereignty and Goodness of God both Victors creation and Mary Rowlandson deal with learning means of adapting and survival within the new worlds they are placed within and the psychological effect it has on both characters. Within Frankenstein you have Victors creation, a deformed creature that is born into this world out of Victors madness and then abandoned by his creator leaving him to survive in a world that would either accept or destroy him for being something other then human, a monster. Within The Sovereignty and Goodness of God you have Mary Rowlandson who is kidnapped along with her children and forced to live with people she refers to as the savages. While living with them she slowly learns the means and ways of surviving every day life within the small communities of the savages.

When the creature awakens in Frankenstein, he awakens into this new world were he has to learn how to adapt in order to survive. The creature slowly learns how to use its senses but also means of survival such as fire. One day, when I was oppressed by cold, I found a fire…and was overcome with delight at the warmth…In my joy I thrust my hand into the live embers, but quickly drew it out again with a cry of pain.(-7) Here and in later lines the creature learns the essentials of creating and using fire. I found that these people possessed a method of communicating…by articulating sounds…I ardently desired to become acquainted with it.(-78) Here the creature becomes aware of speech and its importance between humans, he realizes that he to must learn to articulate these sounds of emotions and feelings in order to be able to communicate with humans.

Within Frankenstein you have the story of a man named Victor Frankenstein who out of the ideals of death and mortality creates a creature new to this world yet because of the creatures deformity abandons him into a world that in many ways would choose the creatures fait. I worked hard for nearly two years, for the sole purpose of infusing life into an inanimate body…but now that I have finished, the beauty of the dream vanished, and breathless horror and disgust filled my heart.(-5) With this passage we get a sense of the creatures first abandonment. The creature is not only created but also abandoned by his creator.Write my Essay on mary rowlandson and frankenstein for me

The Sovereignty and Goodness of God is a book written by Mary Rowlandson dealing with her captivity by Native Americans. Mary Rowlandson was a Puritan who held the word of God, the bible, dear to her, she drew on the bible to supplDuring her captivity Mary not only learned how to function within the Indian society but also how to live as one of them.

In order to survive Mary Rowlandson had to live with the Indian captors but more then that become a part of their society.

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Catcher in the rye

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"...How do you know what you're going to do till you do it? The answer is, you don't."

The Catcher in the Rye, by J.D. Salinger is the story of a teenage boy, told through his own view. Holden Caulfield tells of the previous year in his life. This quote from page 1 summarizes his feelings about mostly everything. Besides Holden's constant daydreaming, he lived in the moment, doing whatever he felt like. He is a very intelligent young man, capable of great achievement, but Holden unfortunately suffers from a depression.

Through out the novel, Holden incessantly mentions how things depress him. Everything from the way people act, to how things are in nature, bring him down. Holden's behavior revolves around his depression. He does not try to pass his classes in school, as well as he does not try to be overly social. He hates the way that people can be so phony, yet he himself can also be called one. Holden tries to put up a front to hide his depression. He acts the way that he thinks people want him to act. Holden enjoys 'shooting the bull' with people. This is because it is the only way that he can have a conversation with someone without revealing his depression.

In the final chapter of The Catcher in the Rye, Holden does not tell the reader the rest of his story after the rainy day with his sister, Phoebe. However, it is revealed that he 'got sick' after he went home. There are many clues that point to what happened. As a result of his depression, it is possible that Holden could have made a suicide attempt after returning home. He says, "A lot of people, especially this one psychoanalyst guy they have here, keeps asking me if I'm going to apply myself when I go back to school in September"(1) The part 'guy they have here' and the previous statement, "I'm supposed to go next fall after I get out of here" implies the possibility that he has been placed in an institution or hospital of some sort.

Although Holden would not agree, it is beneficial that he told his story. One part of recovery is to be able to speak about what has happened. He says he regrets telling so many people, but I don't think he regrets telling it altogether. Holden says. "I don't know what to think about it. I'm sorry I told so many people about it. All I know is, I sort of miss everybody I told about…Don't ever tell anybody anything. If you do, you start missing everybody."(14) When Holden says this, I believe that in some way he regrets the way he treated his past acquaintances. Holden appears to be getting the help that is needed and that he is on the road to recovery. However, he still seems resistant to the idea of going back to school, and he seems to still have an attitude about certain people and things.

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Blah Blah

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About Max Dupain Born in 11, died 1. Dupain established his first studio in 14 in Sydney. In 141 he entered a partnership with the photo engraving firm of Hartland and Hyde. Dupain went to war, then photographed Australia for the Department of Information, so next time you are at an old info booth and look at a flyer, it could be Dupains photo of lake Eyre or Luna park.

Salvador Dali, the ever surprising, ever changing artist, whose work can be looked at, like his life, to develop with time. Dali started off painting Impressionist work, employing impressionist techniques taught to him by his fathers close friend, and celebrated impressionist painter Ramon Pichot. Dali had no boundaries, he had a genius mind. Anything and everything could be his art form.

The man is baked in white hot light, he is pinned to the sand. The photo is a perfect representation of composition, the right amount of sand and sky, and a beautifully centered subject matter, the sunbaker. It is easy to see how this picture, taken in 17, is said to capture Australian identity. Max was interested taking shots of everyday happenings, yet his photos always seem to have a deeper meaning than when if they were seen in life, on a day to day basis.

Ship (Trading Brig Drops Anchor in the Bay of Cadaqu�s) 11, Oil on Canvas.Custom Essays on Blah Blah

This painting shows the lively shimmering brushwork that indicates Dali's obsession with impressionism. Dali smears the oil paint on thick in short repetitive strokes, which creates texture. The short yellow scattered strokes amongst the blue water gives the illusion of light reflecting, something like night lights or sunrise. The Painting fades off into the top half, blurring browns with grays, greens and blues. This gives the picture lots more depth, and brings the subject matter (The thick yacht) in focus a lot more.

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Goal of Public Speaking

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My ability to speak publicly is an essential tool in the field of teaching. Speaking publicly allows me to express my ideas and knowledge with certainty. The public speaking course that I am enrolled in now will prepare me to effectively communicate to other individuals with confidence. Though I may speak well to my peers, there is still room for improvement on my part, because I find it very difficult to speak in front of large audiences. I am setting goals for this class with hopes that these goals will enable me to become a better public speaker.

Every time I get in front of a group of people to speak, I can feel my heart racing, and my palms sweating. Or maybe it's the amount of people in the room that cause me to be very nervous. Suddenly, I start talking too fast, or stumble over my words. I want to conquer the fear of standing in front of people. I will do this by reciting my speech in front of a large group of my friends; I will also practice my speech in an empty classroom.

I want to be able to clearly express my ideas so that I grab my audience's attention. The only way that I can do this is if I spend a lot of time in preparing for, and researching my speech. I will also recite my speech in front of the teacher before my actual graded speech. This will help me to see the mistakes that I made, so that I can improve.

Lastly, I want to believe in myself. Ever since I entered this class, I have been having thoughts that I will get nothing higher than a "C." I am very unconfident, especially because I did very horrible on the first quiz. All weekend, I complained to my friends that I was going to fail the class, because of the quiz and because I feel that there is no way that I can deliver an "A" speech. I will overcome these thoughts by trying to think positive, and by working hard in this class. I also ask that you (Ms. Gesmundo) encourage me. Write your Goal of Public Speaking research paper

After writing this essay, I feel a little bit more confidant. I cannot give up. Besides I am in this class so that I can learn to become a better public speaker, there are no prerequisites to this course. If I keep these goals in mind throughout the semester, I should do well.

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Civil Disobedience

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Thorean starts of by saying that he believes the State will take his work of his hands, making him no better than anyone. The Constitution, though not perfect, is respectable. Many have interpret them, but he, seen from a higher perspective, states that who shall judge them and say what they are?

The government doesn't bother him much. He believes that if a man is free in thought, fancy, and imagination, than anyone who is less wise cannot bother him.

Everyone has different thoughts. States-men and legislatures speak of a moving society, but cannot do without it. They have certain experience and discrimination, but their wit and usefulness are limited, and believe that the world is governed by policy and expediency. Speculations will soon reveal the limits of Webster's minds range and hospitality. He is wisdom, and he contains only sensible and valuable words. But his quality is prudence. Its not truth, but consistency or a consistent expediency. He is not a leader, but a follower. He cannot fact out of its political relations. The States have nothing to do with it.

They who know of no purer sources of truth wisely stands. They use the Bible and the Constitution.Custom writing service can write essays on Civil Disobedience

There is no one who has spoke out. There is no genius to answer these questions of the Legislatures. If it was up to them, America would not retain her rank among the nations. 1800 years have passed, yet not Legislature who is wise enough has step amongst us.

The authority of the government is still impure. It can have no pure right over his person and property. There will never be a free State until it recognizes man as higher independent power and treats him that way. But this is left up to his imagination. It is his vision, a vision that has not yet happened.

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