Lab Report Accurate Measurement of Mass and Volume

Laboratory Report 1 Title : Accurate Measurement of Mass and Volume Part A: The Formula of Hydrated Copper (II) Sulfate Aim: The objective of this experiment is to find out the accurate mass of a solid and to calculate the moles of an unknown. Materials: The materials used in this experiment are Hydrated Copper (II) Sulfate, weighing bottle, analytical balance, laboratory balance, casserole, spatula, and hotplate. Methods: First, approximate 1.0g of hydrated copper (II) sulfate was transferred into a weighing bottle and the lid was screwed on. The colour of the solid was noted.The capped bottle was then taken into the analytical room and its mass was accurately measured. Then, the copper (II) sulfate was transferred from†¦show more content†¦Materials: The materials used in this experiment are Potassium Permanganate, beaker, pipette, pipette filler, dropper, 100cm3 volumetric flask, water, cuvette cell and ultraviolet-visible spectrophotometer. Methods: First, no more than 20cm3 of the coloured solution (PotassiumShow MoreRelatedLaboratory Techniques and Measurements Essay968 Words   |  4 PagesLaboratory Techniques and Measurements Peter Jeschofnig, Ph.D. Version 42-0165-00-01 Lab RepoRt assistant This document is not meant to be a substitute for a formal laboratory report. The Lab Report Assistant is simply a summary of the experiment’s questions, diagrams if needed, and data tables that should be addressed in a formal lab report. The intent is to facilitate students’ writing of lab reports by providing thisRead MoreMass Density Of An Unknown Metal Essay1066 Words   |  5 Pages The goal of this experiment was to determine the mass density of an unknown metal. Five different vernier capillaries and double pan balances were used to measure the metal. The plan of action was to find the average density to reduce random error, in addition to, calculating the standard error to observe the reliability of proposed average. Ideally, the metal would identify more comparably with gold or aluminum. The concepts of mass density, standard error, average, one-dimensional statisticsRead MoreChemistry Experiment Essay1131 Words   |  5 PagesLab Report Experiment 1 amp; 2 CHM-101 Amele Takpara Partner: Jessamyn Dupree ------------------------------------------------- Experiment 1 ------------------------------------------------- (Pre-Lab Questions) 1. In the design of a Bunsen burner, explain the purpose of a. the gas control valve The gas control valve regulates the rate at which methane enters the burner. b. and the air vents. The air vents control the rate at which air enters the burner 2. Why is a luminousRead MoreDensity of Sprite1742 Words   |  7 PagesGeneral Chemistry I Lab 09/12/2007 Lab 7 Density of Sprite and Diet Sprite Abstract: The density of regular Sprite was found to be 1.037 +/- g/mL. compared to Diet Sprite which was 0.9965 +/- g/mL. Among the three volumetric glassware Pipette was most precise (à ³=0.0016 g/mL). Burette was the second best (à ³=0.0023 g/mL) and graduated cylinder was the least precise (à ³= 0.007 g/mL). Density was found to be intensive property. The slope of the graph of mass against volume was 1.05 g/mL, with theRead MoreDetermination of the identity of an unknown liquid Essay1644 Words   |  7 PagesChemistry Lab Report Purpose The purpose of this lab is to determine the identity of an unknown liquid by measuring its density and its boiling point and try to match it with those solutions given in Table 2 of experiment 2. Procedure Part A In Part A, The main purpose was to find the determination of the density of the unknown (j41) and by doing that we had to determine volumes of the unknown liquid (j41) using three different volumetric devices which are graduated cylinder, pipetteRead MoreLabpaq Lab Techniques and Measurements Essay1512 Words   |  7 Pagessystem of units (SI), to become familiar with common lab equipment and techniques, to gain proficiency in determining volume, mass, length, and temperature of a variety of items using common laboratory measurement devices, to learn to combine units to determine density and concentration, and to use laboratory equipment to create serial dilutions and determine the density and concentration of each dilution. Procedure: Measure the volume, mass, length and temperature of a variety of items. CreateRead MoreEssay about Lab 1-Measurement, Length, Mass, Volume, Density Time 1380 Words   |  6 Pagesï » ¿ GS104 Lab Report Experiment # 1 Measurement, Length, Mass, Volume, Density Time David Case: January 17, 2015 Experiment #1 Measurement, Length, Mass, Volume, Density, Time Objectives: To make basic distance, mass, density, and time measurements. To make calculations of volume and density, using proper units, and to practice using graphing software while graphing the relationship between the circumference of a circle and its diameter. Read MoreChemistry Beverage Lab Report Essay1265 Words   |  6 PagesJoanna Park Mrs. Carrillo CP chemistry per. 5 September 17, 2012 i. Beverage Density Lab Report ii. Purpose: The purpose of this experiment is to determine the percentage of sugar content in beverages. iii. Materials: Distilled water, beverages (juice, soda, sport drinks), Sugar reference solutions (0, 5, 15, ad 20%) 25ml each, Balance, centigram(0.01g precision), Beaker (100-mL), Erlenmeyer flask (125-mL to collect rinse solutions), Pipet(10-mL), Pipet bulb or pipet filler ivRead MoreLabratory Techniques and Measurments1186 Words   |  5 Pages Date of Experiment: February 5, 2013 Report Submitted: February 11, 2013 Title: Laboratory Techniques and Measurements Purpose: To gain knowledge about the International System of Units and use it to determine volume, mass, length, and temperature. To learn to use these forms of measurement to determine density and concentration, as well as learning basic lab equipment to create dilutions. Procedure: Part 1: After reading the various informationRead MoreLaboratory Techniques and Measurements Essay824 Words   |  4 PagesLaboratory Techniques and Measurements Choose any three objects that are shorter than the metric ruler to measure, such as a CD, Key, spoon etc. OBJECT | LENGTH (cm) | LENGHTH (mm) | ruler | 30.5 cm | 305 mm | thermometer | 15.1 cm | 151 mm | pencil | 16.7 cm | 167 mm | Warm Temperature Measurements * Fill a 100 a 100mL beaker with 50mL of hot water. Get the water as hot as possible. * Use thermometer to measure the temperature of the water in the beaker using Celsius unit

Weak Base Definition and Examples

Definition: A weak base is a base that is partially dissociated in an aqueous solution. Examples: NH4OH

The Awakening Study Questions - Free Essay Example

Sample details Pages: 3 Words: 1048 Downloads: 7 Date added: 2019/10/30 Category Literature Essay Level High school Topics: The Awakening Essay Did you like this example? The Awakening Study Questions Chapter 1: Question 7- What indications are there that the Pontellier marriage is strained? Don’t waste time! Our writers will create an original "The Awakening Study Questions" essay for you Create order The only time Leonce and Edna ever speak is in passing. He takes her for granted, and sees her as a small part of his orderly world. Chapter 2: Question 3- What shift of point of view is evident in chapter 2? Edna has the most distinct change in point of view in chapter 2. In chapter 1 you see Edna passing her time with a young man, but Mr. Pontellier isnt worried and rather bored of his wifes flirtatious actions. Mr. Pontellier pushes away his two children and leaves his wife to her own devices, not caring if she is flirting with another man or not. But in chapter 2, Edna has settled into more of a family routine that is calm and settled, the only issue is that its not with her husband but rather the young man she has a crush on. Chapter 4: Question 1- Describe the unusual nature of the relationship between Edna and her children. The relationship that Edna has with her children isnt that of the traditional sense. Edna doesnt show much interest in her children, and they have gotten use to not going to her when they need help. The children have learned that they will have to take care of themselves with little help from a nurse. Edna doesnt show any outward displays of affection towards her children. She is not a mother and doesnt want to be. Chapter 5: Question 2- What is the difference between Roberts present attentions to Edna and his past attentions to Adele Ratignolle? The difference between Roberts present attention with Edna and his past attention with Adele is that Adele never took Robert seriously, while Edna does. Edna isnt comfortable with Roberts actions towards her. When he leans his head on her arm not once but twice, she cant help but feel discomfort towards him. Shes in a situation that she never wanted to be in, but one that she was expected to be in. Chapter 7: Question 5- What do you learn about Edna as a person, given the reasons for her marriage to Leonce? Edna has had fantasies of love, but she has been disappointed in some way when it comes to her marriage with Leonce. She only married him because her family expected her to, not because she chose to. Although she knew that this was a practical decision, she had a rebellious streak when it came to her marriage. She knows she must walk this path, idly, aimlessly, unthinking, and unguided. Chapter 10: Question 3- How does Edna respond to swimming successfully for the first time? What happens that can be considered symbolism or foreshadowing?   The entire summer Edna attempted swimming but was never successful. She had several instructors, but no success. The night she swims for the first time successfully she is overjoyed, and feels a sense of freedom and power with it. She ends up swimming to far out, and suddenly the possibility of deaths overcomes her before she returns to the shore. This could symbolize the danger of straying to far away from the path. Chapter 14: Question 1- What is Là ©onces reaction when Edna does not return with the others? What does this show you about their marriage? He begins to worry about her, but then is reassured of her safety by Adele. After that he leaves for Kleins to discuss business. The fact that he shows little concern for the absence of his wife proves that he is very indifferent about what she does. Chapter 17: Question 3- What is the purpose of Ednas Tuesday at home? How does this change after she returns from Grand Isle, and how does this fit into the theme of rebellion? The Tuesday at home is a social convention, a time to receive visitors of social and business importance. A few weeks after returning from the Grand Isle Edna decides to stop receiving visitors with no explanation, other than I simply felt like going out, and I went out. After following this custom for six years, she decides to rebel against the demands of society and do what she wants to do. Chapter 22: Question 1- How do the actions and comments of Leonce and Doctor Mandelet illustrate the following theme: that men cannot understand women? Leonce complains to the doctor that Edna has some sort of notion in her head concerning the eternal rights of women. He also explains to the doctor that him and Edna havent slept together in some time. The doctor blames the possibility of pseudo-intellectual women for Ednas recent behavior. When the doctor proposes the idea of a possible genetic defect, Leonce reassures him the he checked Ednas family lineage before he married her. Both men are patronizing and seeing women as strange creatures who are moody and whimsical. Neither man appears to understand Edna and what she is going through. Chapter 30: Question 3- Describe the setting for the dinner, the table, the furnishings, and the overall atmosphere. What does this tell the reader about Ednas decision to leave? The table is covered in yellow satin lace cloth, with large candles burning softly under yellow silk shades. There was something extremely gorgeous about that evening, luxurious dining chairs replaced the usual stiff ones, the gleam of gold everywhere. This type of elegance is what Edna will give up when she moves around the corner. Chapter 31: Question 1- What are Ednas duel feelings as she and Alcee clean up after everyone leaves? Edna was very closed off during this time and does not feel like talking. She does what is necessary to close up the house and get to her small house where she will be living. On her way to is physically aware of Alcees presence. Chapter 39: Question 8- How is Ednas removal of her clothes as she walks down to the beach symbolic? Edna removing her clothing symbolizes the casting off of societys restrictions to achieve freedom. She first removes her clothes and puts on a bathing suit, but before she gets into the water she removes the bathing suit. Feeling like some new-born creature, opening its eyes in a familiar world it has never known. This begins Ednas final steps towards her souls freedom.

Essay about Wuthering Heights and Romantic Ascent - 491 Words

Martha Nussbaum describes the romantic ascent of various characters in Wuthering Heights through a philosophical Christian view. She begins by describing Catherine as a lost soul searching for heaven, while in reality she longs for the love of Heathcliff. Nussbaum continues by comparing Heathcliff as the opposition of the ascent from which the Linton’s hold sacred within their Christian beliefs. Nussbaum makes use of the notion that the Christian belief in Wuthering Heights is both degenerate and way to exclude social classes. To begin Catherine attempts to find heaven as way to soothe her emotion, but discovers her heart belongs to something else. That something else is Heathcliff, who also finds life on earth a tortuous and difficult†¦show more content†¦However the paradox continues because their love cannot ascend to its ultimate form, as each will refuse their love by the social desires of the time. Nussbaum also establishes a conflict between the fundamental Christian world of the Lintons, and the chaotic world of Heathcliff. The distinction is clearly drawn as a virtuous and companionate world in which the Linton’s live, while Heathcliff is drawn to immoral and devious actions. The author does not however see it this simple. The superficial piteous world is in fact shadowed by a shallow a fake ideal of life. Even Catherine realizes the forged environment in which the Linton’s live, as she explains, â€Å"in whichever place the soul lives. In my soul and in my heart, I’m convinced I’m wrong.† Even though Heathcliff is portrayed as a demonic figure, he also is shown as the romantic Christina lover. This love is the driving force behind his urge to fight against what is expected of him. Both the Linton’s and Heathcliff are not given the satisfaction of becoming the portrait for the ideal Christian. The novel also goes on to comment on Christianity as both imperfect and dubious school of thought. In the first instance the most pious characters including the Lintons, Ellen Dean, and Joseph all behave in direct contradiction of their belief. They act selfishly and look no further than for their own superficial world. Bronte at least gives Heathcliff a justified method

Building the Nation Future Leaders Free Essays

â€Å"Building the Nation Future Leaders through the K to 12 Basic Education Program or The K to 12 Basic Education- Tungo sa Paghuhubog ng mga Makabagong lider ng Bansa. † By ANDEA, ISIDRO JR B. Great day to everyone! Warmest congratulations to the elite corps of successful graduates this school year 2012- 2013 especially to our ever loving parents and the teaching force of this institution. We will write a custom essay sample on Building the Nation Future Leaders or any similar topic only for you Order Now Ma’am and Sir, Good morning! With my great desire, to be one of the guest speakers at today’s event; I accept the challenge and invitation of the teaching staff of this institution to challenge everyone today! It is a great privilege and opportunity for me to speak in front of you as a challenger of your mind and hearts to give an inspirational message that will challenge everyone today! You truly deserve to give pride to yourself as you step into another ladder of your success. It’s been unforgettable event that we should reminisce every now and then the significant marked of our lives as we give priority to our achievement in the field of learning. We bind us one today to celebrate the fruit of our sacrifices; your unsung hero shows their unfading support behind your success as they watch you to recognize this day, your ever loving teachers honored you for the commendable appreciation of your great work during learning process and the person who is one way of molding your life interest and being proud to yourself that you have done the great job in schooling. Our Theme: â€Å"Building the Nation Future Leaders through the K to 12 Basic Education Program or the K to 12 Basic Education- Tungo sa Paghuhubog ng mga Makabagong lider ng Bansa. I would like to talk first about the program of Department of Education in order for us to understand well the message of our nation for us as a stakeholder of change. The K to 12 Program covers Kindergarten and 12 years of basic education (6 years of Primary Education, four years of juniors High School, and another two years of Senior High School) which provide our learners to undergo suffici ent time for mastering the concepts and skills presented during learning process. Enhance the abilities and capacities of our learners, and prepare our graduate to higher education, job employment, and business or entrepreneurship. The K to 12 Basic Education Program is a key chain to success because it helps our graduates to become ready and more successful to go in their different paths, Maybe some them will proceed to tertiary education, for employment, or do a business. We strongly believed that this changes in our Educational Program will affect our way of living, to give us hope for a better future because our young leaders equipped with different skills in different learning areas, trained and prepared them to become an agent of change; Formal Education will make us living if we seized the right opportunity given to us. Let us work hand in hand for the betterment of our future, Let us let other known about this program, and encourage them to have a full support in achieving our Country’s progress. You as a graduate have a vital role to strengthen your great potential to become a partner of change. You will be one of the backbones of our K to 12 graduates sooner and later know that you will have to deal with changes, both big and small, continually. Be prepared to be flexible and to adopt as needed. Here are the three things to consider on becoming more successful in achieving our goals in life and to become a productive leaders someday: 1. Heads-up to your great potential. Sometimes, we may not realize the essence of our abilities. But there’s a gift given to us by our omnipotent master to give our full potential to become the most successful person. We may become successful beyond of our wildest dream. You should know yourself better, Identify your strength and weaknesses and facing the real you. The achievement of your goal is assured the moment you commit yourself to it and believe that you can do something. The first thing that we need to consider is to open your eyes to your great potential by setting your mind and goals in life. Mind setting (power of imagination) is a tool for showing your potential to become great individual for the next days. Because of it, you can now set your goals in life. Some great person believed that goal is vital. â€Å"People with goals succeed because they know where they’re going. † According to -Earl Nightingale. â€Å"The achievement of your goal is assured the moment you commit yourself to it. † -Mack R. Douglas. Formal education will make you a living. Self-education will make you a fortune. † â€Å"Unless you change how you are, you will always have what you’ve got. † â€Å"We all have two choices; we can make a living or we can design a life. † I want you to â€Å"Take up one idea and act on it. Make that one idea your life. Think of it, dream of it, and live on that idea. Let the brain, muscles, nerves, and every part of your body be full of that idea and leave all other ideas alone. This is the way to success. † According to SFI Rules to Success; setting goals is so easy to do, yet 95% of people never set goals. They just never take the time. And who do you think are the most successful, highest-earning people in the world? The 5% group of course! If you want to be in the 5% group, don’t even think about ignoring goal-setting! 2. Begin with realistic plan (winning starts with beginning). If you sealed with something and you fell not moving on your way, start to get started and start whatever you had right now. There’s no perfect time to wait, do the best job you can and always keep learning and moving ahead. Who among you here have a Facebook account? What is the first thing you do in getting connected with that social networking? Just to sign up and get started, right? â€Å"You don’t have to be great to get started, but you have to get started to be great. † -Les Brown, â€Å"Everyone who got where he is had to begin where he was. † -Richard L. Evans. â€Å"Failing to plan is planning to fail. † â€Å"Without goals, and plans to reach them, you are like a ship that has set sail with no destination. † -Fitzhugh Dodson â€Å"Most people have no idea of the giant capacity we can immediately command when we focus all of our resources on mastering a single area of our lives. – Anthony Robbins. â€Å"Nothing can add more power to your life than concentrating all your energies on a limited set of targets. â€Å"- Nido Qubein. â€Å"What you choose to focus your mind on is critical because you will become what you think about most of the time. â€Å"- Noel Peebles We cannot become successfu l in aiming at something, if we are trying to do many things just for once. We should be realistic in our planning and concentrate your thoughts upon working hand in hand. As they say, chase two rabbits and you’ll catch neither! â€Å"Success demands singleness of purpose. – Vincent Lombardi â€Å"No life ever grows great until it is focused, dedicated, disciplined. – Harry Emerson Fosdick. 3. Live with your goals and persist until you win. We don’t need to invest so much to earn something and to pay for our reward. â€Å"Success seems to be connected with action. Successful people keep moving. They make mistakes, but they don’t quit. â€Å"-Conrad Hilton. â€Å"It’s when things get rough and you don’t quit that success comes. † â€Å"Other people and things can stop you temporarily. You’re the only one who can do it permanently. -Zig Ziglar Don’t let little problems upset you. Concentrate on the positivesâ⠂¬ ¦ and the â€Å"big picture. † Also remember that the only thing that will never change is that there will always be changes (especially in today’s rapidly evolving world). Don’t let changes upset you. Know that you will have to deal with changes, both big and small, continually. Be prepared to be flexible and to adapt as needed. â€Å"Learning is very fun and lifelong process† which I always emphasize in the field of learning because it awakens our interest to learned. At your youthful stage, there is an eagerness to learn in every chance as you participate inside the class. Your teacher taught you so much how to become smart, how to behave, how to learn, how to work effectively, how to perform a task and know how to accept student’s responsibility. I know each one of you possess a precocious gift from God. Who among you here wants to be a Doctor, Nurse, Lawyer, Engineer, Military, Teacher, or a President? Then don’t stop learning. ALWAYS REMEMBER THIS THREE WORDS: DON’T STOP LEARNING! ANDEA, ISIDRO JR B. KABACAN WESLEYAN ACADEMY HIGH SCHOOL DEPARMENT How to cite Building the Nation Future Leaders, Essay examples

Sound of Night Maxine Kumin free essay sample

Maxine Kumin recalls an experience outside with other people at night time when a whole other world comes out. She describes the many animals that thrive in the night and make noises that can be interpreted as threatening. The author appears scared of the unknown and what could be lurking in it’s dark depths. The title, â€Å"The Sound Of Night†, makes the reader begin to ponder what sounds they associate with night. I associate night with chirps and whistles and creaks and rain drops. Many people may think of night as silent and serene while actually a lot happens during the night. As in the poem, animals such as birds, frogs, bats, fish, and others continue their lives impervious to the setting sun or come out to begin their days in nocturnal happiness. Kumin uses her title to relate to her theme of fearing the unknown that can be hiding where you can’t see. We will write a custom essay sample on Sound of Night Maxine Kumin or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page In her poem, Kumin uses the literary device of imagery to create the fearful vivid picture in the mind of the reader. For example, Kumin describes the as â€Å"our firework bright and hot† in a stark contrast against the cold dark night she has described so far. The author also uses imagery while describing waiting for â€Å"the crease of first eye-licking light†, or sunrise. Again, the appearance of light and warmth is such a contrast to the night that the rays would lick the author’s eyes. The author also uses the device of personification to make the night seem more alive than it already is. In having the dark doing the action of coming on, Kumin makes the dark something capable of action or â€Å"verbing†. The active dark is suddenly more frightening than the stable, stagnant one. Again, the dark is personified when Kumin says â€Å"we defend ourselves from dark. † Now that dark needs defending against, the night is even more foreboding and unwelcome to Kumin and her fellow adventurers. Kumin’s poem explores the night that we don’t know. She enlightens us to the kind of animals thrive after the sun goes down, the different noises sounding through the seemingly quiet blanket of dark, and feelings of fear and wariness. In her poem, Kumin reveals about humanity that we all fear the unknown and whatever we think could be lurking where we can’t see.

Autobiography of an Ex-Colored Man ( James Weldon Johnson ) free essay sample

Examines use of irony in portrayal of mixed-race characters awakening in novel based on authors life. James Weldon Johnsons The Autobiography of an Ex-Colored Man is a book of irony upon irony. Not a true autobiography but a novel based loosely on the authors life, the book portrays the life of a man of mixed black and white heritage who undergoes a series of unexpected reversals of consciousness largely based on his racial experiences. The protagonist appears to be white and is raised as a white of some socioeconomic privilege. His primary awakenings take him from his white upbringing into the world of blacks, where he comes to recognize and appreciate his black heritage, and finally back to the white world after his abandonment of that black heritage. Ironically, however, this series of awakenings leaves the protagonist as confused about his identity at the end of the book as he was in the beginning. We will write a custom essay sample on Autobiography of an Ex-Colored Man ( James Weldon Johnson ) or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page The bulk of the books ironies are rooted in the protagonists almost..