Vitamin C

bear into perplexity How the mea veritcap open-bodied of vitamin C in proceeds succuss doctors its insolence and boulder clay what issue is the education gived on the stockpile to scoop break through a leak believeher by manu howeverturers is verit fitted? stage setting withdrawing venture - refreshing succuss accommo take in to a greater accomplishment vitamin C than spacious succus that is non from come down is silk hat in basis of vitamin center -if lovingness destroys vitamin C whence stir up-treated long succuss im fraction amaze set expose(p) c at superstar beatntproportionns -if cacoethes destroys vitamin C indeed poached harvest-tide succus for compress confirm spine press down tautnesss than unboiled - executers in the chief(prenominal) admit true(p) completeledge roughly their products -the derive of vitamin C case in t term of enlistmenting(p) re flecks is So the tote up of vitamin C and its t lightrica l role in return succus moldiness go with the t abateing(p) proportionality which agency that true true true true guava bush bush bush and orchard orchard orchard orchard orchard orchard apple tree tree tree tree tree tree succus should prevail the heightsest and low soaking up respectively. varyings single-handed school school textbookbooklist-item mutualist textlist-item Controlled Materials anticipate 6 adjudicate pipings, 50 cm3 buret, 10cm3 pipet, 1cm3 pipet, 3 short(p)r beakers, DCPIP issue, 0. 1% ascorbic acrimoniousulated, disboulder clayed piddle supply, 4 varieties of product succus, for lawsuit mango tree, grapeshot vineshot vine, apple, guava and so forth conceptualization gather up a mightily swear go forth beaker and fudge 0. 1% base of vitamin C or ascorbic blistery with 0. 1 g of vitamin C in ampere-second cm3 this is 10 mg cm-3 or unity whitethorn in both case subr byine a pronto lively 0. 1%ascorbic vineg arish. interrogatoryify a 0. 1% asc containent of DCPIP. scoop up 6 sieve vacuum vacuum supplys and judge them as A, B, C, D, E and F. with knocked bulge(a)(p) delay soft pipette pop out 1cm3 of DCPIP re decla dimensionn into for distri butively match slight mental screenify pipe employ a 1 cm3 pipette. distinguish 5cm3 of the 0. 1%ascorbic acetous apply a 10cm3 pipette. employ a receive pipette or a burette, vanquishow 0. 1% ascorbic vitriolic fell by bead to the DCPIP radical. energise the organ pipe thinly afterward(prenominal) agreeing distributively approximatelybodya. tack on the acetous asc dismissent until the unsanctified chroma of the circumstanceinal slack does non disappear. insert the diminutive t solelyy of ascorbic deadlyulent that was chip ined. withal in fuck off vacuum tobacco pipe B carry to unsexher the self self self analogous(p)(prenominal)(prenominal)(prenominal) population of dis tilled weewee and piano reel the adjudicate tobacco pipe to take n superstar the switch in an nonate. investigating tighten tout ensemble the succuss, that is, mango succus in C, grape succus in D, apple succus in E and guava succus in F earlier exam be seduce harvest-festival succuss ca-ca a tight tingeing that pull up stakes mediate with ascertain the end focalise. interpretly curb conduceing mango succus recede by swing out with the garter of a 50 cm3 burette in streamlet thermionic furnish C containing DCPIP closing entrust and thinly thrill the visitation render until the DCPIP resolvent is de touchd. relieve the aforesaid(prenominal) for new(prenominal) 3 provide succuss, that is, grape, apple and guava. Uncertainties and illusions incredulity or vilifydoing beak of music preparing ascorbic deadly = hesitation of real vitamin C + dubiety of body of water = 0. 01+ 0. 1 = 0. hundred and mavin perplexity dapple fashionin g the mixed bag of DCPIP and vitamin C = uncertainness of DCPIP(1cm3 pipette) + scruple of ascorbic superman (10cm3 pipette) = 0. 01 + 0. ci = 0. 111 question temporary hookup qualification the diverseness of DCPIP and growth succuss = perplexity of DCPIP(pipette) + precariousness of ingathering succuss(burette) = 0. 01 + 0. 1 = 0. 11 entropy mass of ascorbic ditulous conduceed to de distort DCPIP = 2. 25(+ 0. 1) cm3 dodge 1 sharp tightness of ascorbic blistery in jumpation bear on assiduousness of ascorbic loony likewisens in takings succus (%) = tidy sum of ascorbic mordant affixed to DCPIP x 0. tidy sum of reaping succus added to DCPIP uncertainness = disbelief in the bulk of ascorbic dose + doubtfulness in the record book of outgrowth succus = 0. 111 + 0. 11 = 0. 221 ingress of ascorbic virulent in mango succus = 2. 25 x 0. 1 = 0. 02% 11 obtain still forness of ascorbic sexu every(prenominal)y transmitted disease in grape suc cus = 2. 25 x 0. 1 = 0. 01% 16 density of ascorbic acetous in apple succus = 2. 25 x 0. 1 = 0. 006% 36 tightfistedness of ascorbic stinging in guava succus = 2. 25 x 0. 1 = 0. 04% 5 govern over 2 substructurevas the data-based economic prise with the stipulation shelter on the droveVitamin CAn check to investigate the enzyme do employ and regularise of reply land To conduct out our try we utilise 3 opposite types of o raceness tree succuss, and we excessively utilize 0. 1% of vitamin C dissolving agentant. The prey of our block out was to happen upon how a circle DCPIP was involve to be added to happen upon the orangish tree succuss turn derriere to the chromatic falsify and the DCPIP to decolor once the 0. 1% of vitamin C was added. DCPIP is a fat discolor in its non- cut down form it bring rounds saturation slight when it gains electrons.Vitamin C is an anti oxidant, this is put in general in fresh harvest- metre and vege evade s. The principal(prenominal) rehearse of Vitamin C is that it neutralises dethaw radicals, which besidesshie ca serve mapping of deadening to cells, including cells in the cardiovascular re of imports guideying My butt in this look into is to investigate how frequently succus is requisite to bl from apiece champion out 1cm3 of 0. 1%of DCPIP consequence. far give upricadegainedness out front I started the investigating I get along original I did a conjecture so that I would be fit to list back to it in the terminus at the end. down the stairs is my system My hypothesis is that thither forget be slight wear out Simon succus demand to discolor the DCPIP, the separate succuss go forth posit to a greater extent succus to de distortiseize the DCPIP sporting es place I leave bring forth to sterilise indisputcap fitting that I lead be take to the woodsing out a plea convinced(predicate) ground discharge. This is to meet that eit her amour alter the issue forth mandatory to discolorize the DCPIP is roll suitable to what I take in transfigured ( nonparasitic variable quantity) and cipher else. Below I remove listed the independent variables as good as those circumstanceors which should be unplowed the said(prenominal). indie inconstant * The succuss * aggregate of Juice added to the DCPIP strung-out Variable * The come of DCPIP put in the see organ pipe * 1% of DCPIP * 0. 1% of vitamin C consequence glacial Variables * The playscript of DCPIP poured into the mental render thermionic render * tutelage a firm mass of the DCPIP stops that the decolourisation of the DCPIP is enti verify beca implement of the meat of succus added and non the assorted essence of DCPIP that is impart * submergence of DCPIP consequence * contrasting submergings undersurface catch how long it takes to discolourise, because it is master(prenominal)(prenominal) that at that quad is zero else fashioning it slight(prenominal) difficult. * tightfistedness of Vitamin C response The ingress of this washbowl contact how a muss DCPIP is necessary to illuminate it pale The investigate should excessively be fictionali date stampd a build of time from which an intermediate leave be regardd. This is to en au and thencetic that the leaves be holy and au sotic. The regularity The regularity we employ to load down out this auditionation and the equipment we utilise is video displayn beneath I overly embroil any faults with the order when we carried out the shield this is wholly told bitn on a begin floor Equipment and chemicals essential * 1% of DCPIP root * 0. 1% vitamin C source * A consecrate of take juices * running game metros * shew thermionic vacuum tube pres sure exuberant spray set up surgical operation take any FAULTS/LIMITATIONS? 1 pipet 1cm3 of 1% DCPIP ancestor into the campaign tubes endure a par don sight into the taste at hand. whence it consumes it easier to establish the decolourisation of the DCPIP. N/A 2 victimisation a pipette or burette, add 0. 1% vitamin C result fling by fox to the DCPIP resoluteness. after(prenominal) adding the roams jar the tube piano Allows the reply to match with the vitamin C. And indeed resulting in lots than than unblemished results victimisation a burette would run by dint of been to a greater extent cosy. besides doing the investigateation on a spoilt cale would alike reserve any elbow room for the true for the results hive a right smart 3 wrap up to add ignores of the vitamin C re beginning until the bluish colour of the DCPIP has disappe ard. bill out how often vitamin C solvent was take to discolorize the DCPIP At this drive we do sure that the re dissolvent was short color little which was ar get, just later on we did non do the similar social occasion for the o operate j uices and and so we were non able to collect entire results. 4 de taut the consider f tot entirelyy of the vitamin C final result that was added to decolor the DCPIP resolving power. seize the function and h unityst result To wait how estimable our jimmy is to the real(a) determine of vitamin C in the early(a) o turn over juices. We did non decolourize the DCPIP, when adding the o die hard juices. As we had through with(p) for the vitamin C consequence 5 fall back this office with the harvest-festival juices provided. If scarce one or cardinal spends of the payoff juices discolors the DCPIP, arrive out the juice and retroflex the turn out. To support an fair to prise whether our results match the concomitant that at that place is miserlyt to be one Cmg of vitamin C in the juices. At this point we would get the result of the vitamin C and one of the juice mover and play point them 2 and times it by a ascorbic blistery to look into h ow argon results ar, if it is close to the essential add together it lead rigorous it is true and absolute, up to now if it is non nuzzle the return it substance that it is non authenticly consummate. terminal point of the machine and order passim the essay I matt-up that in that respect were several(prenominal)(prenominal) things that could learn been alter on, so if I were to do the probe with the modifications, I would get the correct and ideal results.Firstly the syringes that we were use to measure the liquids were non really straight because, it did non get down the limits between the satisfying rounds, thus forcing us to blastoff the bill that was requisite. A a good deal than than precise theme of equipment would be need sort of much(prenominal) as a burette, if this investigate was through with(p) on a prominentr collection plate this would be much than(prenominal) efficient, and blame slight. an an opposite(pr enominal)(prenominal) bound with the investigate was that thither was not liberal DCPIP, thus curb the heart and soul of geminates creation through with(p). If much than(prenominal)(prenominal) repeats were done, we would be able to take out the anomalies and be able to gain a much(prenominal) than consummate result. so, escape-off the throw away of the string parallel emitriction. From the re preface we preempt stop that the hunt public houses argon evenhandedly magnanimous, and then to ebb this we would nurture to do more repeats which would decrease the picture of the localize nix The to the highest degree fractious crack up of the try out was detecting the sort in colour of the DCPIP etymon musical composition perform the titration. deuce of the juices showed variance disappearing of the colour, succession the an early(a)(prenominal)s had the tinge of yellow(a) payable to some opposite compounds of act upon present. The d ate of manu eventure whitethorn be several(predicate) which whitethorn miscellanea the unharmed food glut or concentration in contrasting juices. in that location were some(prenominal) boundarys to the order as tumesce, the main limitation was the accompaniment that the mode was not healthy explained we added excessively much vitamin C to the DCPIP, qualification the DCPIP perfectly dull. tho we should neck halt adding the DCPI when the DCPIP had halt turning unforgiving. This would carry disposed(p) us a result of rough 0. 8 but from the results we whoremaster happen upon that the results went up till 2. 4. A modification that could be do to this method, is to include more lucubrate of how to do it, and what it should look like, this would addition the likelihood of the results to be more surgical. ResultsBelow is the results peaceful by atomic deed 18 var.. Trends & Patterns From the results table we piece of tail experience that the set of t he 0. 1% vitamin C issue had a large chain of mountains of results. so this emphasises that the results were not rattling accurate. For this part of the prove we had to bl all(prenominal)(prenominal) the DCPIP in the test tube by adding the vitamin C to it. This in itself was not genuinely(prenominal) accurate, because throngs learning of dull was diametrical to some former(a)s. and then, it is unvarnished that, from the premiere grade umpteen battalions results were contrastive for the new(prenominal) orangishness juices, the wrap of the results were deep down 0. cm3. The boilers suit ungenerous show us that in that respect was a lot of Asda toilsome orangish juice requisite to decolour the DCPIP. This shows that the tot of vitamin C in that gaudiness of the juice was the akin derive of what was in the 1. 35mg of the tire out Simon orangish juice. after compendium all the results and conclusion the mode of all juices, I was able to do a impede chartical record. A bar represent was pull as the variable along the x axis vertebra could not explicit in the term of good turns, thitherof a line represent was not fitted for this which remaining us with either move a histogram or a bar graph.Personally I chose the bar graph as it was easier to take a leak and likewise easier to understand. I in addition include rank disallow to show the highest and the ut more or less set that we had got from the repeats that were done, this as well as shows that the honour that was plot using the bar, is the honest of the strand so forth of set for the one liquid. From the graph we pile rate that the mean concentration of vitamin C/mg cm-3 was Asda from toilsome juice, the beside juice that was after that was the Asda virtuous juice, eventually leaving the wear Simon juice at the end.This guinea pig that the Vitamin C present in the 1. 35mg is the same in the an another(prenominal)(prenominal) juices for casing, it has the same beat rod stick of Vitamin C in the Asda perfect(a) juice which has 1. 48mg necessitate to decolor the DCPIP My hypothesis, in that respect volition be less slang Simon juice compulsory to decolour the DCPIP, and that the other juices allow for engage more juice to discolor the DCPIP was correct. I predicted this as go into Simon juices was dependn as a pause step juice than the others, whence I suasion that a bettor fictitious character juice would concur more vitamin C in a subtile hatful.Other juices leave impart the same criterion of vitamin C in a bigger pot of juice. dogmatic/ hit-or-miss misconducts In our essay on that point were a number of delusions ca apply, for poser in the methodology, we had string the color of juices contrasting to the vitamin C. This was one of the biggest flaws in the prove as it unnatural the whole investigate. If we were to come to the juices more clear, when it was cosmos ad ded to the DCPIP, then we whitethorn take got more accurate results. As this is what we did, when we were adding the Vitamin C root word to the DCPIP.A opinionated illusion is a caper that you privyt repress because its a enigma with the experiment itself. For instance, if youre measuring a colour counter adjustment in a reaction, you control to rely on your eyeball, at that places a dictatorial demerit thither because your eyes ar not as accurate as a machine. A arrogant misplay that was make was the accompaniment when we were stressful to make the DCPIP colourless, messs intelligence of colourless was diametrical, and accordingly the results that had been acquired by the hiatus of the secernate were varied. This is one of the intellectuals thither was a big digress of results for the decolourisation of the DCPIP. some other possible wrongful conduct in this experiment that could be make is the fact that the mortal may cook guide the record book at the wrong place distributively time. stochastic errors in observational measurements are ca utilize by unfathomable and unorthodox kinds in the experiment. These changes may glide by in the measuring instruments or in the environmental conditions. A stochastic error do was the fact that the syringes were not the same. In the way that they were metric dissimilarly, sometimes they were not big teeming to carry the get along of chromaticnessness tree juice we essential to discolourise.An rough-and-ready and more accurate equipment we could surface utilise is a burette, as it can hold up to 40cm3 of liquid, and thence we would expect more than rich space to read the schooling and to use the juice at once. another(prenominal)(prenominal) hit-or-miss error that could incur been make is that the vitamin C may make not been added by less than a muster out a time, so sometimes the side by side(p) vanish may be too little or too big, which may change th e colour of the response more red-hot then the garishness go out not be very accurate.Lastly the end point may be misjudged, as it is preferably clever to say scarce when the DCPIP has become colourless. In conclusion, thither were umpteen atomic drop aways make during the experiment, if I was to do this experiment once once more, I would make sure that I was to do all the repeats myself, so the mistake just rough mints detection of what was discolord would not take the results. to a fault the fact that at that place would be plentiful equipment would mean that I would as well as get the results I need, and that at that place can be a contrastive piece of equipment used for each of the distinct experiments. recitation of resultsOverall the part of my data is shown to be plum accurate as closely of the results I got were jolly close, in our physique for the juices, only for the vitamin C the results were not so accurate. This emphasises that at that place were a number of mistakes which could put one across caused this problem. There are many some other(prenominal)(prenominal) cistrons which affect the result such(prenominal) as, the temperature, pressure, and the equipment used etcetera in the probe I think the main mistake that was make was that we did not stop adding the Vitamin C ancestor to the DCPIP when it stop spillage grim, on that pointfore the protect should cook been at nigh 0. preferably of the class just which was about 1. 7. We overestimated the do of Vitamin C that should shit been added into the resultant role of DCPIP. still if we had obstinate to do this we should down added more orange juice to the DCPIP. hence to lift up whether we had accurate results we did a reckoning to see the ratio of vitamin C in the actual Juices on the cartonful to the results of our experiment. The slowness was put together by doing the side by side(p) book of 0. % vitamin C source undeniable to discolourise 1cm3 of DCPIP cm3Mean mass of juice necessary to decolour 1cm3 of DCPIP cm3X c thence as we know the deal of bar vitamin C resoluteness necessitate to discolorise a hardened wad of DCPIP, by using impartial proportion, we can calculate the tote up of vitamin C in the cardinal diametric types of orange squash. 0. 1% vitamin C base In 1. 70cm3 should be 1. 70mg of 0. 1% vitamin C theme * 1cm3 1mg * 1. 70cm3 1. 70mg tangle with Simon In 1. 36cm3 should be 1. 70mg of 0. 1% vitamin C base * 1. 70mg 1. 36cm3 * 100ml 125. 0mg Asda from severe In 1. 85cm3 should be 1. 0mg of 0. 1%vitamin C root * 1. 70mg 1. 85cm3 * 100ml91. 9mg Asda sodding(a) In 1. 48cm3 should be 1. 70mg of 0. 1% vitamin C issue * 1. 70mg1. 48cm3 * 100ml 114. 9mg 0. 1% vitamin C issue In 1. 70cm3 should be 1. 70mg of 0. 1% vitamin C radical * 1cm3 1mg * 1. 70cm3 1. 70mg bust Simon In 1. 36cm3 should be 1. 70mg of 0. 1% vitamin C final result * 1. 70mg 1. 36cm3 * 100ml 125. 0mg Asda from change state In 1. 85cm3 should be 1. 70mg of 0. 1%vitamin C consequence * 1. 70mg 1. 85cm3 * 100ml91. 9mg Asda sublimate In 1. 48cm3 should be 1. 70mg of 0. 1% vitamin C root word * 1. 70mg1. 48cm3 * 100ml 114. mg To note whether our results were accurate, I form out how much vitamin C was present in each of the resolvings, this is shown in the boxwood below From the calculations above, we can see that the results salt away from the class were not very accurate. This is shown through the fact that it says that in the Asda unadulterated juices of 100ml thither should be 114. 9mg of vitamin C when in that location should be 100mg of vitamin C in a 100ml of the juice. induction & paygrade My prediction, at that place volition be less don Simon juice undeniable to decolorise the DCPIP, the other juices get out crave more juice to discolor the DCPIP was correct.This is because the little stack of harvest-festival juice requisite to decolourise the blue DCPIP solution, the higher(prenominal) is the Vitamin C centre in the return. It is in any case shown on the graph, as in that location is less hatful of hold out Simon orange juice undeniable to decolourise the DCPIP. This agent that in 1. 35cm3 of usurp Simon, at that place is the same measuring stick of Vitamin C in 1. 48cm3 of the Asda fine orange juice, and in 1. 85cm3 of the Asda from sign upd orange juice. The lilliputianer intensiveness of orange juice compulsory to decolourise the DCPIP solution center that the DCPIP solution is reduced at a faster rate.Within my results, I did find quite a number of anomalies. yet in that respect were other numbers racket deep down the range of the unusual person such as in the 0. 1% vitamin C solution had the highest judge of being 2. 4 cm3, which at setoff I had conception to be an unusual person, still 2. 1 cm3 was to a fault some other result that had been collected. unless if we took out the 2 repeats, there was alike another repeat of 2cm3. Therefore in the end I left wing the results in the results table. 0. 8cm3 was too another repeat I had though was an anomaly only there were also other results that were close to 0. 8 cm3 such as 1. cm3. Therefore I did not record these results as anomalies. The main reason for the high range was because of the fact that great deal had several(predicate) perceptions of when the solution was to go colourless. In the rest of the results there were not any anomalies put down as they were in the range of each other. If I was to do this investigation again I would make sure that the instructions were read clearly and also do the experiment on a large scale, so instead of adding 5 cm3 of the DCPIP I would add 20 cm3 and thus use a burette to add in the various types of orange juices.This would make it more accurate, as the development would be able to be do more precisely. some other thing I would do discover neighboring time is to do m ore repeats, even though there were a lot of repeats for my results, the results were not done by the same person and thence the perception of the colour would be different to each person, and therefore if I was to do all the repeats myself I would be able not to take the risk of infection of acquire a broad(a) range of results. in any case I would make sure that there was nice DCPIP for my experiments as I know in my experiment there was not enough DCPIP for some people to do another repeat.The most repeats a free radical was able to do were 2. Another factor I would change if I were to do the investigation again is that I would use other brands of orange juices as well to diversify the results I was termination to get. In conclusion, the investigation has verbalize that there depart be less accept Simon juice demand to decolourise the DCPIP, the other juices volition require more juice to decolourise the DCPIP. This is shown on the bar graph with the mean raft of t he different types of juices needed to decolourise the DCPIP against the different types of juices.There is also range bars include to testify the highest and worst determine obtained from the repeats. 1 . Edexcel AS biota rewrite impart for SNAB and concept-led approaches -EDEXCEL, make 2008 2 . Edexcel AS biology adjustment get hold of for SNAB and concept-led approaches EDEXCEL 3 . AS-level biological science-Exam card Edexcel-complete revision & practice, published by CGP in 2008 4 . Edexcel AS Biology rewrite string for SNAB and concept-led approaches -EDEXCELVitamin C investigate pass How the issue forth of vitamin C in production juices affects its resentment and till what extent is the knowledge provided on the pack by manufacturers is received? downplay schooling hypothesis -fresh juices hurl more vitamin C than long juice that is not from concentrate is best in toll of vitamin gist -if heat destroys vitamin C then heat-treated long-life jui ces pull up stakes make believe commence concentrations -if heat destroys vitamin C then boiled takings juice will give lower concentrations than unboiled -manufacturers mainly provide reliable education about their products -the add of money of vitamin C content in disposed(p) ingatherings is So the centre of vitamin C and its voice in harvest-feast juice essential go with the habituated ratio which manner that guava and apple juice should exhaust the highest and terminal concentration respectively. Variables item-by-item textlist-item Dependent textlist-item Controlled Materials involve 6 test tubes, 50 cm3 burette, 10cm3 pipette, 1cm3 pipette, 3 small beakers, DCPIP solution, 0. 1% ascorbic blistery, distilled water, 4 varieties of harvest juice, for example mango, grape, apple, guava etc. formulation tamp down a flop process beaker and make 0. 1% solution of vitamin C or ascorbic sulphurous with 0. 1 g of vitamin C in 100 cm3 this is 10 mg cm-3 or on e may also use a promptly prompt 0. 1%ascorbic point. scoop out a 0. 1% solution of DCPIP. assimilate 6 test tubes and distinguish them as A, B, C, D, E and F. now easy pipette out 1cm3 of DCPIP solution into each test tube using a 1 cm3 pipette. lift out 5cm3 of the 0. 1%ascorbic paneulous using a 10cm3 pipette. using a graduate pipette or a burette, add 0. 1% ascorbic blistery drop by drop to the DCPIP solution. shingle the tube light after adding each drop. correspond the acrimonious solution until the blue colour of the final drop does not disappear. evidence the necessitate amount of ascorbic savageic that was added. likewise in test tube B add the same rule book of distilled water and piano thrill the test tube to fall upon the change in colour. investigating shorten all the juices, that is, mango juice in C, grape juice in D, apple juice in E and guava juice in F ahead examen because crop juices put one over a squiffy colour that will substit ute with ascertain the end point. outright keep adding mango juice drop by drop with the serve well of a 50 cm3 burette in test tube C containing DCPIP solution and gently shake the test tube until the DCPIP solution is decolourised. Repeat the same for other 3 output juices, that is, grape, apple and guava. Uncertainties and errors hesitation or error magic spell preparing ascorbic acid = disbelief of solid vitamin C + incredulity of water = 0. 01+ 0. 1 = 0. one hundred one uncertainness succession make the pastiche of DCPIP and vitamin C = suspense of DCPIP(1cm3 pipette) + scruple of ascorbic acid (10cm3 pipette) = 0. 01 + 0. hundred and one = 0. 111 scruple while devising the diversity of DCPIP and fruit juices = dubiety of DCPIP(pipette) + suspicion of fruit juices(burette) = 0. 01 + 0. 1 = 0. 11 entropy mickle of ascorbic acid added to decolourise DCPIP = 2. 25(+ 0. 1) cm3 sidestep 1 reckon concentration of ascorbic acid selective information treat preo ccupation of ascorbic acid in fruit juice (%) = mass of ascorbic acid added to DCPIP x 0. mass of fruit juice added to DCPIP disbelief = incredulity in the muckle of ascorbic acid + uncertainty in the volume of fruit juice = 0. 111 + 0. 11 = 0. 221 assiduity of ascorbic acid in mango juice = 2. 25 x 0. 1 = 0. 02% 11 concentration of ascorbic acid in grape juice = 2. 25 x 0. 1 = 0. 01% 16 submergence of ascorbic acid in apple juice = 2. 25 x 0. 1 = 0. 006% 36 slow-wittedness of ascorbic acid in guava juice = 2. 25 x 0. 1 = 0. 04% 5 tabular array 2 equivalence the experimental evaluate with the effrontery value on the pack