Saturday, December 28, 2019

Indicating Possession in Spanish

Many of the structural details of the English language — the parts of speech, punctuation, and even the addition of s or es to make words plural — have correlating structures in Spanish. But one common structure — the addition of an apostrophe followed by an s  Ã¢â‚¬â€ to indicate possession  does not. So if you are going to indicate possession, whether literal or abstract,  in Spanish, here are three ways you can do it: Possessive Determiners Possessive determiners are often classified as a type of adjective, the equivalent of such English words as my and your. Like other Spanish adjectives, they need to match the noun they refer to in number and gender. Here are the possessive determiners of Spanish along with a sample sentence for each: Mi, mis (my, mine): Mi gato es muy peludo. (My cat is very hairy.)Tu, tus (your):  ¡Tus hijas y yo te necesitamos! (Your daughters and I need you!)Su, sus (your, his, her, their, ones): Su casa es su mayor inversià ³n. (Your  house is  your  biggest  investment.)Nuestro, nuestra, nuestros, nuestras (our):  ¿Hay limpieza à ©tnica en nuestro paà ­s? (Is there ethnic cleansing in our country?)Vuestro, vuestra, vuestros, vuestras (your): Me interesarà ­a saber mà ¡s sobre vuestro perro.  (I would be interested to know more about your dog. Vuestro and its forms are seldom used in most of Latin America.) Using De If you are using a name or noun to refer to the person or entity that is in possession, the prepositional phrase of de followed by the noun is used, as in el libro de Juan, Johns book. A few examples: Ver el perfil de Pablo. (See Pablos profile.)Él no cree en el movimiento de mujeres. (He doesnt believe in the womens movement.)Es la madre de la estudiante. (She is the students mother.) It similarly is possible to indicate possession by using de followed by a pronoun, such as in de à ©l, but such usage is uncommon except when the use of a determiner would be ambiguous in the context. For example, if su libro (his, her, your or their book) would be ambiguous, we could say el libro de à ©l or el libro de ella (his book or her book). Possessive Pronouns and Long-Form adjectives Less common are the long form of possessive adjectives, which may be used as pronouns. They also may be used as adjectives following the noun. As with the determiners, possessive pronouns and adjectives much the possessed items or persons in number and gender.  These forms are as follows: mà ­o, mà ­a, mà ­os, mà ­as (my, mine).  El coche  mà ­o  consume mucha gasolina. (My  car consumes much gasoline.tuyo, tuya, tuyos, tuyas (your, yours).  La cama roja es tuya.  (The red bed is yours.)suyo, suya, suyos, suyas (my, mine). Las computadoras eran suyas. (The computers were hers.)  nuestro, nuestra, nuestros, nuestras (our, ours). Los perros nuestros son muy diferentes. (Ours are very different.)vuestro, vuestra, vuestros, vuestras (your, yours; this plural familiar form is seldom used in Latin America). El regalo es vuestro. (The gift is yours.) Sample Sentences Showing Possession La casa mà ­a estaba toda quemada. Lo perdà ­ absolutamente todo. (My house was completely burnt. I lost absolutely everything. Mis pensamientos son los que me hacen sentir feliz o desgraciado. (My thoughts are what make me feel happy happy or miserable. Los retos de la vida son parte del viaje. (Lifes challenges are part of the journey.) La esposa del actor rompià ³ el silencio sobre los escà ¡ndalos. (The actors wife broke her silence about the scandals.) la complejidad del ojo humano es increà ­ble. (The human eyes complexity is unbelievable.) En la creacià ³n de su imagen profesional, su actitud puede contribuir de forma positiva o negativa. (In the creation of your professional image, your attitude can contribute in a positive or negative way.) Su reputacià ³n puede sufrir ataques desde cualquier rincà ³n del mundo. (Ones reputation can come under attack from any corner of the world.)  ¿Cuà ¡les son las diferencias tuyas con las otras candidatas? (What are your differences from the other candidates?) Ya se han muerto todas las esperanzas mà ­as. (All my hopes have died.) Era la ocasià ³n perfecta para explicar mis creencias. (It was the perfect time for explaining my beliefs.) Durante aquellos primeros aà ±os, la inteligencia de Einstein comenzà ³ a manifestarse. (In those early years, Einsteins intelligence began to show.)

Thursday, December 19, 2019

Two Other Philosophers, John Locke, And George Berkeley

Two other philosophers, John Locke, and George Berkeley have shown similar theories to the discussion from the ideas presented by Plato. Unlike Plato who argues that we cannot determine what is true or real based on experience, Locke argues that all knowledge which we use to determine what is true or real comes from experience. And similar to Plato, Berkeley argues that only our ideas are the only thing that is real. Locke also argues in his essay that knowledge is not something people are born with. Locke differs from Plato, because Plato believes we do not know the true or ideal state of something. This is so because on Earth the physical realm, we only experience â€Å"shadows†, or reflections of the perfect ideal objects we have in our†¦show more content†¦Locke’s second point in his argument is that knowledge comes from the senses and how we perceive the world. This means that all the knowledge society has acquired comes from the observations and reasonin g people have made based on their perceptions. In his essay, Locke presents the idea of two fountains of knowledge. These fountains of knowledge is where all the ideas that we can have have come from. The first fountain of knowledge is sensation, which involves all the five senses of the human body. It is because of sensation we have ideas such as hot, the color orange, sweet, and bright. The second fountain of knowledge is experience, which helps explain the things we perceive from the first sense, such as reasoning, thinking, and knowing. Locke then separates experience into two categories, primary and secondary qualities. Primary qualities are qualities that an object can have without us needing to sense it such as size of an object or the way it is moving. An object will already have these qualities regardless if a person recognizes them or not. Secondary qualities are the â€Å"other† qualities such as color, or the sound an object makes when it hits the floor. These o ur qualities that exist in our mind, not qualities that an object has already on its own. A great example is wine. When it comes to wine many people have different experiences on how a wine tastes. Imagine one bottle of wine that is sampled by two differentShow MoreRelatedLocke’s Qualities vs. Berkeley’s Idealism754 Words   |  4 Pagesfall of Rome and the rise of the dark years, three major events had occurred. The first began with the scientific revolution, where many philosophers were becoming scientist, such as the philosopher of science Francis Bacon. The next event was the resurgence of skepticism, where one questions everything until they discover the truth. For instance, the philosopher famous for saying the phrase â€Å"Cogito, ergo sum,† (translated as I think, therefore I am) was the skeptic Rene Descartes, who came up withRead MoreThe Spread Of Empiricism By Isaac Newton1067 Words   |  5 Pagesthe belief that knowledge acquired through sense exp erience is the only true meaningful knowledge. This idea began in Britain and spread all the way to Scotland and even Ireland. Philosophers such as David Hume developed radical ideas supporting these beliefs. Descartes theory regarding clockwork universe inspired others to further investigate the countless mysteries in nature. By 1687, Isaac Newton developed his Principia Mathematica, which astounded the scientific community. Newton was successfulRead MoreAnalysis Of George Berkeley s Dialogues980 Words   |  4 PagesChristopher Podlaski In George Berkeley’s Dialogues, he presents and subsequently dismantles several of his predecessors’ ideas through the use of two characters, Hylas and Philonous. His main goal in this project is to refute the flawed concept of reality that something â€Å"unperceived and unperceiving could exist† (Atherton). However, in attempting to argue for this, particularly when arguing against John Locke’s distinction between primary and secondary qualities, he sets his opposition up asRead MoreAnalysis Of George Berkeley s The Tree Essay1563 Words   |  7 PagesGeorge Berkeley is a religious empiricist who champions himself, as other empiricists often do, as a philosopher who appeals to a common sense understanding of the world. Yet at times, Berkeley strays from what is considered to be true by the common people. The most trouble arises in this way as Berkeley discusses his view on what he calls â€Å"sensible objects†. A representation (indirect) real ist, such as Berkeley believes John Locke to be, would argue that someone looking at a tree only perceivesRead MoreDifferences Between Hylas And Philonous1191 Words   |  5 Pagesthe concept of philosophy itself. Dating back to thinkers such as Aristotle, carrying on throughout the medieval period and into modern philosophy, abstracts have always been grappled with. George Berkeley’s epistemology about abstract ideas has historically been one that has drawn the attention of many other scholars and philosophical thinkers. His thoughts on ideas, specifically his expansion of Locke’s general abstract ideas, are still argued to this very day. His critique of Locke’s view of abstractRead MorePhi 2010 Essay712 Words   |  3 PagesPHI 2010 1) Compare and contrast the views of Dualism, Materialism, and Idealism. Dualism is defined as the view that hold what exist is either physical or mental. (pg.98). Also dubbed the â€Å"two-realms view† by Plato, identifies some things as having both components, it is the most accepted idea since most believe that there has to be a mental connection with physical items. Materialism is the view that only the physical exist (pg.98). There is no connection mentally to the physicalRead MoreJohn Locke and Metaphysics Essay example575 Words   |  3 PagesJohn Locke was an English philosopher who was one of the most influential of Enlightenment thinkers. Locke starts with the questioning of Descartess philosophy of Cogito Ergo Sum. Locke had empiricist beliefs, which discount the concept of innate ideas and promote the role of sensory perception and experiences in humans. Locke drew inspiration from Ockhams Razor to explain knowledge stating that everyone begins with a tabula rasa meaning a blank slate. The blank slate argument says thoughts areRead More John Lockes Essay Concerning Human Understanding1405 Words   |  6 PagesJohn Lockes Essay Concerning Human Understanding In John Lockes Essay Concerning Human Understanding, he makes a distinction between the sorts of ideas we can conceive of in the perception of objects. Locke separates these perceptions into primary and secondary qualities. Regardless of any criticism of such a distinction, it is a necessary one in that, without it, perception would be a haphazard affair. To illustrate this, an examination of Lockes definition of primary and secondaryRead MoreEssay about Discuss How Psychology Developed as a Scientific Discipline1127 Words   |  5 PagesDescartes; a French philosopher and mathematician. Descartes was most influential in his recognition of the body and mind being two separate entities. Descartes differed from other philosophers in his proposal of dualism as he recognised that there is interaction between mind and matter, which was key in the development of psychology as a science as it lead to two principles in psychology: introspectionism and behaviourism. Whilst Descartes emphasised rationalism, John Locke believed empiricismRead MoreStructuralism : Social Science And Humanities1073 Words   |  5 Pagesa properly philosophical movement and that’s the boundary it should reside in. In a sense I agree there is no need for other psychologist to make their own critics from something that was taking from a philosopher’s point of view, however analyzing and creating theories are acceptable. â€Å"First of all, structuralism situates itself in a general way within an orientation that Georges Canguilhem used to characterize with a formula, almost a slogan, that he claimed to have found in the work of Leon Brunschvicg:

Wednesday, December 11, 2019

What Is Popular Music Essay Example For Students

What Is Popular Music Essay Popular music is any music since the mid-sass that is popular with the preferences of anyone from a teen too mid-aged adult. 2. What theme does pop music typically use in the lyrics? Describe one pop song that uses this theme. Why is this theme such a popular one? Pop music typically uses the theme of love and relationships in the lyrics. One pop song that uses this theme is the song Marry Me by Jason Deride. Some of the lyrics are And if I lost everything in my heart it means nothing Cause I have you, Girl, I have you. To get right down on bended knee nothing else would ever be better, utter that day when Ill say, Will you marry me? This theme is a popular one, because people can relate to it both in good ways, and in bad ways. 3. What is disco? What are the characteristics of this music? Disco is a style of music that developed around the sass. It mixed what some called soaring vocals with a beat that was good to dance to. 4. What was the British Invasion? Which famous group was a part of this movement? What impact did the group have on pop music? The British Invasion was a time in the sass when several British bands and artists became popular and influential in America. The Beetles were a large part of this movement. They impacted pop music in many ways, some of which are; they mixed several kinds of music together for some of their songs, inspiring other artists to do the same. They also sang about some of the social issues, while at the same time using catchy melodies and lyrics. 5. What is a boy band? What are some characteristics of a boy band? A boy band is a band with around 3-6 young men who sing, and occasionally play instruments. Some characteristics off boy band are each members classification. One boy could be referred to as the nice boy, while another was the bad boy, hill yet another was the cute baby. One popular example of a boy band today is the band One Direction. Critical Thinking Questions 1 . Some of the music in the sass was used to protest social and political issues. Is music still used as a form of protest? Why or why not? I would say that yes, music is still used as a form of protest. I say this because, when there is a popular issue that arises, artists sing about their views and opinions in the songs. For instance, concerning the issue of Bullying Taylor Swift has the song Mean, and Owl City has the song Embers. 2. One of the changes in the music industry during the twentieth century was the increasing centralization of music. Has music become too commercial? Why or why not? Do you think that artists are creating music for money or for other reasons today? I think that music is starting to become too commercial. Popular Music By Westminster are making songs for what their agenda is; whether it is sex, drugs and alcohol. Or whether it is songs about love and patience. Artists try to put their thoughts and opinions in a song while still making money off of it. 3. How has technology impacted pop music? Describe at least three technological changes that impacted and shaped pop music today or in the past. Technology has impacted pop music in multiple ways. One way that it has impacted pop music is with the internet. More people are able to listen to, watch, and download songs on internet, therefore helping its sales. Another way is with television. Many people now see pop artists singing on TV, or being interviewed. This can greatly increase their popularity. Additionally, the radio is possibly the greatest technological advance for pop music. In each city, in each state there are generally 1-2 pop music radio stations. People are always listening to the radio, and having the pop music available to hear for free greatly increases pop musics popularity. .u247439c2829497206be1fbce8aac50f0 , .u247439c2829497206be1fbce8aac50f0 .postImageUrl , .u247439c2829497206be1fbce8aac50f0 .centered-text-area { min-height: 80px; position: relative; } .u247439c2829497206be1fbce8aac50f0 , .u247439c2829497206be1fbce8aac50f0:hover , .u247439c2829497206be1fbce8aac50f0:visited , .u247439c2829497206be1fbce8aac50f0:active { border:0!important; } .u247439c2829497206be1fbce8aac50f0 .clearfix:after { content: ""; display: table; clear: both; } .u247439c2829497206be1fbce8aac50f0 { display: block; transition: background-color 250ms; webkit-transition: background-color 250ms; width: 100%; opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #95A5A6; } .u247439c2829497206be1fbce8aac50f0:active , .u247439c2829497206be1fbce8aac50f0:hover { opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #2C3E50; } .u247439c2829497206be1fbce8aac50f0 .centered-text-area { width: 100%; position: relative ; } .u247439c2829497206be1fbce8aac50f0 .ctaText { border-bottom: 0 solid #fff; color: #2980B9; font-size: 16px; font-weight: bold; margin: 0; padding: 0; text-decoration: underline; } .u247439c2829497206be1fbce8aac50f0 .postTitle { color: #FFFFFF; font-size: 16px; font-weight: 600; margin: 0; padding: 0; width: 100%; } .u247439c2829497206be1fbce8aac50f0 .ctaButton { background-color: #7F8C8D!important; color: #2980B9; border: none; border-radius: 3px; box-shadow: none; font-size: 14px; font-weight: bold; line-height: 26px; moz-border-radius: 3px; text-align: center; text-decoration: none; text-shadow: none; width: 80px; min-height: 80px; background: url(https://artscolumbia.org/wp-content/plugins/intelly-related-posts/assets/images/simple-arrow.png)no-repeat; position: absolute; right: 0; top: 0; } .u247439c2829497206be1fbce8aac50f0:hover .ctaButton { background-color: #34495E!important; } .u247439c2829497206be1fbce8aac50f0 .centered-text { display: table; height: 80px; padding-left : 18px; top: 0; } .u247439c2829497206be1fbce8aac50f0 .u247439c2829497206be1fbce8aac50f0-content { display: table-cell; margin: 0; padding: 0; padding-right: 108px; position: relative; vertical-align: middle; width: 100%; } .u247439c2829497206be1fbce8aac50f0:after { content: ""; display: block; clear: both; } READ: Baroque vs. Classical Music EssayFinally, the mass production of synthesizers has made pop music even more appealing to the masses. 4. Pop music has often been seen as youth music. Why do you think pop music appeals to younger individuals? How has the industry promoted this idea? I think that pop music appeals to younger individuals because pop artists use themes that are popular with younger individuals everyday lives. A pop song can be about breaking up with your boyfriend or girlfriend, or Just getting a new boyfriend r girlfriend. Younger audiences are able to relate to it better than older audiences. . What is one popular pop artist or group (from today or from the pa st)? Why does this person/groups music fit into the pop genre? Why do you think the person/group was successful with their music? One popular pop artist is Iranian. Her music fits into the pop genre, because it is very upbeat and contains all of the elements that a pop song contains, such as love and relationships. I think that she is successful with her music because she has very catchy lyrics, and each song of hers sounds different.

Wednesday, December 4, 2019

Stpm Sem 2 Chemistry Experiment 2013 Essay Example

Stpm Sem 2 Chemistry Experiment 2013 Essay Both plates were then weigh separately and were recorded as initial mass of anode and cathode in the table below. 4. Both weighed plate were clipped using crocodile clips and the batteries were placed in the battery socket. After that, both plates were immersed in copper (II) solution and the stop watch was started to allow the apparatus to run for 30 minutes. 5. the reading of ammeter was recorded. Then, both plates were taken out from the solution, and were dipped into propanone, before blow to dry for both plates using hair drier. 6. The dried plates were then weighed and were recorded as final mass accordingly. The mass lost (at anode) and gained (at cathode) were calculated. Observation : | Copper (anode)| Copper (cathode)| Initial mass / g| Xinitial| Yinitial| Final mass / g| Xfinal| Yfinal| Difference / g| X| Y| Time taken : 30 minutesCurrent used : p ADiscussion :The current used : Q = It ; Q = (p)(30 x 60) = a CMol of e- used = Q / F @ a / 96500 ; mol of e- = d molAt anode, since Cu Cu2+ + 2 e- ; 1 mol of Cu = 2 mol of e-Mass of copper dissolved = d mol / 2 x 63. 5 g = f g % of purity of Cu = mass gained at cathode / mass of Cu dissolve= Y / f x 100%[Note that your mass of Cu gained must be less than Cu dissolved]| | | We will write a custom essay sample on Stpm Sem 2 Chemistry Experiment 2013 specifically for you for only $16.38 $13.9/page Order now We will write a custom essay sample on Stpm Sem 2 Chemistry Experiment 2013 specifically for you FOR ONLY $16.38 $13.9/page Hire Writer We will write a custom essay sample on Stpm Sem 2 Chemistry Experiment 2013 specifically for you FOR ONLY $16.38 $13.9/page Hire Writer Experiment 8 : Suggested salts for KA1 is MgS2O3 or MgSO3 or CuSO3 or Pb(CH3COO)2 or Ca(CH3COO)2 | Observation| Deduction| (b) Add dilute hydrochloric acid to a small amount of solid KA 1, then warm gently. | If S2O32- : Yellow precipitate; brimstone [pungent] smell gas/ gas decolourise KMnO4/H+| S2O32- may present| | If SO32- : brimstone smell gas/ gas decolourise KMnO4/H+| SO32- may present| | If CH3COO- : Gas smell of vinegar is released when heated| CH3COO- present| (c) Dissolve solid KA 1 in distilled water and filter. Use separate portions of the filtrate for tests (i) to (vi). i) Add aqueous NaOH, then in excess. | i. White precipitate insoluble in excess NaOH| Mg2+ , Ca2+ may present| | ii. White precipitate soluble in excess NaOH| Pb2+,Zn2+,Al3+ may present| | Blue precipitate insoluble in excess NaOH| Cu2+ may present| (ii) Add aqueous NH3, then in excess followed by aqueous NH4Cl| White precipitate insoluble in excess NH3 (if (i) is fulfilled)| Mg2+ confirm present| | Whi te precipitate insoluble in excess NH3 (if (ii) is fulfilled)| Pb2+ , Al3+ present| | No precipitate formed when NH3 is added| Ca2+ confirm present| | Blue precipitate insoluble in excess NaOH| Cu2+ confirm present| (iii) Add aqueous iron(III) chloride, then warm. | Red solution; brown precipitate when heated. | SO32- ; CH3COO- may present| | Purplish solution decolourise. | S2O32- may present| (iv) Add aqueous silver nitrate, followed by HNO3| White precipitate, soluble in HNO3 / NH3 (aq), or SO32? in excess; turn black precipitate when heated. | SO32- may present| | White precipitate turn to yellow and then brown and finally black; white precipitate soluble in excess S2O32?. S2O32- may present| | White precipitate in concentrated solution, soluble in HNO3 or NH3(aq). | | (v) Add aqueous disodium hydrogen phosphate. (No reaction for Ca2+)| White precipitate insoluble in excess| Pb2+ may present| | Blue precipitate is formed| Cu2+ confirm present| | White precipitate, soluble in mineral acid| Mg2+ confirm present| (vi) Add aqueous potassium chromate(VI) followed | (Confirmatory test for Pb2+) yellow precipitate is formed| Pb2+ confirm present| | No change occur (or fo rm white ppt)| Pb2+ is absent| KA 2 is a mixture of Al3+ and NH4+ or a mixture of solids Zn2+ and NH4+ | Observation| Deduction| (d) Dissolve all of solid KA 2 in distilled water and filter. Use separate portions of the filtrate for tests (i) to (v). (i) Add aqueous NaOH, then in excess, and warm. | White precipitate dissolved in excess NaOHWhen warmed, a pungent smell was given off| Pb2+,Zn2+,Al3+ may presentNH4+ may present| (ii) Add aqueous potassium iodide| White precipitate is formed| Zn2+,Al3+ may present| (iii) Add aqueous potassium chromate(VI). (Since mixture has no Pb2+, so its either white or orange)| Orange precipitate is formed. Ppt dissolve in mineral acid| Al3+ may present| | White precipitate is formed| Zn2+ may present| (iv) Add aqueous sodium ethanoate, then warm. | No changes observed initially but turn cloudy when heated| Al3+ confirm present| | No changes occur| Zn2+ confirm present| (v) Add aqueous sodium carbonate, then warm. | White ppt is formed. Pungent smell gives off when heated| NH4+ c onfirm present| Experiment 9 KA 1 is solid CuCO3 or MgCO3 or CaCO3 or MnCO3 or NiCO3 or BaCl2 or MgCl2 or CaCl2. Test (plan must be written)| Observation| Deduction| 1. About 2 g of KA1 is put in a test tube and heated strongly. | KA1 is white solid (Ded : transition metal ion is absent) ; green solid (Ded : Ni2+, Fe2+, CuCO3 may present); buff colour solid (Ded : Mn2+ may present)| | Colourless gas evolved which turn lime water chalky| CO32- may present| 2. Salt is dissolved using distilled water (If salt cannot dissolved in water, then) | (Only chloride salt dissolved in water) Colourless solution is formed| | 2. Salt is dissolved using mineral acid| Colourless gas evolved which turn lime water chalky| CO32- confirm present| 3. Solution is then divided into 5 portion| | | i. Add little NaOH then until excess| White precipitate soluble in excess NaOH (Ded : Pb2+,Zn2+,Al3+ may present) ; White precipitate insoluble in excess NaOH (Ded : Ba2+,,Mg2+ may present) ; blue ppt insoluble in excess (Cu2+ may present) ; green ppt insoluble in excess (Ni2+ may present) ; buff ppt insoluble in excess (Mn2+ may present)| ii. Add little NH3 then until excess(Once when cation is almost confirmed, you can always perform 2 confirmatory tests)| For Pb2+,Zn2+,Al3+| For Ba2+, Mg2+| For Cu2+| For Ni2+| For Mn2+| White ppt soluble in excess NH3| White ppt insoluble in excess NH3| White ppt insoluble in excess NH3| No changes formed| Blue p soluble in excess NH3 form blue soln| Green ppt insoluble in excess| Buff ppt insoluble in excess| Zn2+ may present| Al3+ Pb2+ may present| Mg2+ may present| Ba2+ may present| Cu2+ may present| Ni2+ may present| Mn2+ may present| | v. Add 2-3 drops of conc. H2SO4 into solution| White fume is given off| White fume is HCl, so Cl- may present| vi. Add 5 mL of Pb(NO3)2 into solution| White precipitate is formed instantly| Cl- confirm present| (Since salt only contain Cl- amp; CO32-. If CO32- not present, so Cl- is present, so do 2 confirmatory tests for Cl-) KA 2 is a mixture of anions I- and NO3- or a mixture of Br- and NO3- Test (plan must be written)| Observation| Deduction| 1. KA2 is heated gently then strongly heated. | Brown pungent gas released which turned damp blue litmus paper red. Gas also ignite the glowing wooden splinter| NO2 and O2 gas releasedNO3- may present| 2. KA2 is then added with a few drop of conc. H2SO4| Mixture of brown and reddish brown gas were observed(or)| NO2 and Br2 gas releasedBr- ; NO3- may present| | Brown gas were observed. Upon heating, mixture of brown and purplish gas were witnessed together with a bad egg pungent smell| NO2 and I2 gas releasedI- ; NO3- may present| 3. KA2 is dissolved using distilled water and was separate into 5 portion for further testing. | [Dont write this!! Since you can more or less tell what ion presence is either Br- or I-, so try to do 2 test for each ion]| Test of NO3-i. Add 2 mL of conc. FeSO4 into KA2, followed by 2 drop of conc H2SO4. | A brown ring is formed in the middle of solution mixture| NO3- may present| ii. Add 2 g of Devarda alloy to KA2 solution| A colourless pungent gas is formed| NO3- confirm present| Test of I- / Br-iii. Add 2 mL of AgNO3 into KA2| A milky [ Pale yellow] precipitate is formed. Precipitate is dissolved in conc. NH3| Br- may present| | A yellow precipitate is formed| I- may present| iv. Add 2 mL of Pb(NO3)2 into KA2| A milky [ Pale yellow] precipitate is formed. | Br- confirm present| | A yellow precipitate is formed| I- confirm present| Experiment 10Observation (a) Mass of container + KA 3/g | | Mass of empty container/g | | Mass of KA 3/g | SA| Observation (b) Mass of crucible + precipitate/g | | Mass of empty crucible/g | | Mass of precipitate/g | SB| | Question :(c)i. [to ensure a homogeneous solution for the formation of complex ion and allow collision between reactants to ensure complete reaction ] increase the rate of reaction between aluminium and ligandii. o washed away the impurities as well as to [prevent precipitate from dissolving] lower the rate of reaction(d) the mass of complex is constant [ by repeating the process of drying, cooling and weighing until the mass of precipitate is constant](e) mass in 1 mol of Al(C9H6NO)3 = 27. 0 + 3[9(12. 0) + 6(1. 0) + 14. 0 + 16. 0] = 459. 0 g(f) % Al = 27. 0 / 459. 0 x 100% = 5. 88%(g) mass of Al in sample prepare d = ( 5. 88 / 100 ) x SB = C g % of Al in sample = (C / SA) x 100% = answer %|