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The Boiling Point Experiment

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Hypothesis: I think that in this experiment the results of the boiling point of each sample is going be slighly different from what I found on Internet. aim: my aim is to look at what temperature and how long the following alcohol (methanol, I-butanol, Ethanol and Hexane) reach their boiling point and comparing the results that I found on internet and mine. Materials: Alcohol: Ethanol, I-Butanol, Ethanol and Hexane Four Test tubes (boiling tube) Test tubes holder Data logger Hot plates Bunsen burner Beaker 500 ml Measuring cylinder Independent Variable: The alcohol Controlled variable: Keep the same Dependent Variable: The temperature Method: )Prepare and clean the materials before beginning the experiment.

Take four Boil tube and the data logger. 2)Take the First Test tube for the first sample, put 20 ml of Butanol on the measuring cylinder and after on the test tube to be more precise and prepare the data logger and his thermometer to mesure the temperature for the boiling point.

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Take the test tube with the test tubes holder for safety and Put on the Bunsen burner and wait until it start to boil and take off the tube. 3) Clean the area for safety and take the second test tube for Ethanol, put 20 ml and prepare the data logger to mesure the temperature for the boiling point.

Hit it with the bunsen burner and take off the tube when it start to boil. 4)Clean again and prepare the third tube for the third sample which is hexane, put 20 ml of hexane and put the thermometer of the data logger in the test tube to mesure the temperature of the boiling point, hit it until it boils and take it off. 5)Prepare the fourth sample on the last test tube, put 20 ml of methanol, make sure to wash the test tube before hitting it. Prepare the data logger and put the thermometer inside the test tube and hit it with the bunsen burner until it reach his boiling point and take it off. )Repeat trials but in a different way of boiling the alcohol. Put approximatly 400 ml of water in the 500 ml beaker and start hitting the water on a hot plate. Put the test tube with the sample inside the beaker and wait if it start to boil. Results : Results from Internet which the links are: Sample Boiling Point I-Butanol 117 °C Ethanol78. 4 °C Hexane 68 °C Methanol64. 7 °C 31/03/2009 14:17:02 . butanol TimeTemperature Temp s°C 026. 7829755065 0. 526. 7829755065 126. 7597793016 1. 526. 7829755065 226. 7829755065 2. 526. 8061721927 326. 8061721927 3. 526. 8061721927 26. 8061721927 4. 526. 8061721927 526. 8293693717 5. 526. 8757652535 626. 9453630559 6. 526. 9917643764 727. 1295324009 7. 527. 3384042615 827. 9625144638 8. 529. 1447846673 930. 5185632496 9. 531. 9224374234 1033. 3861125643 10. 534. 9347896272 1136. 4782627336 11. 538. 1428110841 1239. 8619041907 12. 541. 5903704683 1343. 3054116483 13. 544. 9545809994 1446. 5921813137 14. 548. 2172361743 1549. 7404041293 15. 551. 1898451152 1652. 6778598736 16. 553. 9559891203 1755. 2048225496 17. 556. 5537691279 1857. 736190264 18. 558. 8794801642 1960. 0165648934 19. 561. 1467731512 2062. 26931981 20. 563. 383300496 2164. 4500591658 21. 565. 5838960553 266. 6681993147 22. 567. 780001005 2369. 0588379729 23. 570. 2909213666 2471. 5607363286 24. 572. 977108807 2574. 3938307692 25. 575. 9205814782 2677. 5733584186 26. 579. 064846835 2780. 6205851797 27. 582. 1867086701 2883. 9554832117 28. 585. 8932166804 2987. 7134863279 29. 589. 7184398517 3091. 672282528 30. 593. 7488158873 3195. 863400119 31. 597. 7129770416 3299. 4561984603 32. 5100. 960317696 33102. 303310255 33. 5103. 344453091 34104. 182597432 34. 5104. 794088573 35105. 534708558 35. 5105. 915096572 36106. 299756107 36. 5106. 558616285 37106. 819446963 37. 5106. 95061058 38107. 082278111 38. 5106. 688783454 39106. 171055769 39. 5105. 91267651 40104. 425884963 40. 5103. 820877243 41103. 233743788 41. 5102. 765365971 42102. 188764268 42. 5101. 734375044 43101. 292899795 43. 5100. 740377589 44100. 196629519 44. 599. 6613798309 4599. 0364461919 45. 598. 41630406 4698. 0090228755 46. 597. 612775791 4797. 214872646 47. 596. 8215315753 4896. 5294563824 48. 596. 1438485675 4995. 7684483534 49. 595. 3912437855 5094. 9254859815 50. 594. 5573691687 5194. 1988108014 51. 593. 9281087639 5293. 6595182436 52. 593. 4816143919 5393. 2164690258 53. 593. 0408317999 5492. 7844758068 54. 592. 5246171266 5592. 3524588051 55. 592. 0958204666 5691. 8410751727 56. 591. 672282528 5791. 4258532425 7. 591. 2590709512 5891. 0103956232 58. 590. 8455993246 5990. 5183413858 59. 590. 355864602 6090. 1185993697 60. 589. 7981033493 6189. 559659331 61. 589. 3228418166 6289. 1658557403 62. 588. 8539950161 6388. 6267403579 63. 588. 3196543509 6488. 0152525594 64. 587. 638450996 6587. 2703105534 65. 586. 8281101762 6686. 4638338366 66. 585. 9645960956 6785. 6091424521 67. 585. 0477958044 6884. 6368882854 68. 584. 294540317 6984. 0230345963 69. 583. 6238284967 7083. 2249467795 70. 582. 9615000336 7182. 5740197675 71. 582. 3153440507 7282. 0585367596 72. 581. 8035690474 7381. 6174822552 73. 581. 3656385362 7481. 1779147735 74. 580. 9911719638 580. 8053990565 31/03/2009 14:17:02 . ethanol TimeTemperature Temp s°C 027. 4994508574 0. 527. 4762345534 127. 4762345534 1. 527. 4762345534 227. 4762345534 2. 527. 4994508574 327. 4762345534 3. 527. 4994508574 427. 4994508574 4. 527. 4762345534 527. 4994508574 5. 527. 6155450809 627. 8695805867 6. 528. 7270220798 730. 2142956025 7. 531. 8045814029 833. 1246738839 8. 534. 3602091779 935. 7524205845 9. 537. 0388134403 1038. 3163858101 10. 539. 6113653833 1140. 9498628612 11. 542. 4690239068 1243. 8867829518 12. 545. 3069791911 1346. 5921813137 13. 547. 876276592 1449. 2178635354 14. 550. 4158410131 1551. 7298553906 15. 553. 2669018642 1654. 567901818 16. 555. 957077289 1757. 2239144926 17. 558. 4239209139 1859. 6925367942 18. 560. 9986795366 1962. 3074109571 19. 563. 7761139227 2065. 380745962 20. 567. 0059664509 2168. 6585302785 21. 570. 1980826923 2271. 6569435738 22. 572. 9272663877 2373. 981714755 23. 574. 8105624691 2475. 4945690531 24. 576. 028704759 2576. 464406463 25. 576. 7911570842 2677. 1801634275 26. 577. 4605837246 2777. 6263419606 27. 577. 6829428317 2877. 6829428317 28. 577. 6829428317 2977. 7964092838 29. 577. 8532754757 3077. 9672753302 30. 578. 024409613 3178. 0816338822 31. 578. 1389484517 3278. 2538497558 32. 578. 2538497558 3378. 3114371261 33. 578. 114371261 3478. 3114371261 34. 578. 3114371261 3578. 2538497558 35. 578. 2538497558 3678. 2538497558 36. 578. 2538497558 3778. 1963536372 37. 578. 1389484517 3878. 1389484517 38. 578. 0816338822 3978. 0816338822 39. 578. 024409613 4078. 024409613 40. 578. 024409613 4178. 024409613 41. 578. 024409613 4278. 024409613 42. 578. 024409613 4378. 024409613 43. 578. 024409613 4478. 024409613 44. 577. 9672753302 4577. 9672753302 45. 577. 9672753302 4677. 9672753302 46. 577. 9672753302 4777. 9672753302 47. 577. 9102307214 4877. 8532754757 48. 577. 8532754757 4977. 8532754757 49. 577. 7964092838 5077. 7396318379 50. 577. 6829428317 5177. 6263419606 1. 577. 5733584186 5277. 5733584186 52. 577. 5733584186 5377. 6263419606 53. 577. 6263419606 5477. 6829428317 54. 577. 6829428317 5577. 6829428317 55. 577. 4605837246 5676. 9573675629 56. 576. 464406463 5776. 028704759 57. 575. 8127748351 5875. 8127748351 58. 575. 8666387071 5975. 9205814782 59. 576. 028704759 6076. 0828857925 60. 576. 1371467727 6176. 1914879646 61. 576. 1371467727 6276. 1371467727 62. 576. 028704759 6375. 7086371406 63. 575. 3348287239 6474. 9647631432 64. 574. 6016123219 6574. 2903735995 65. 573. 9337167088 6673. 6279808394 66. 573. 3750954425 6773. 1239041227 67. 572. 8774898987 6872. 6295894227 68. 572. 3833074973 972. 14166876 69. 571. 7051386029 7071. 2288883412 70. 570. 7555663057 7170. 1980826923 71. 569. 6942846187 7269. 2845921359 72. 569. 1038842038 7368. 9717087828 73. 568. 8819726657 7468. 7924423481 74. 568. 6585302785 7568. 5250749459 75. 568. 3920726194 7668. 2622765736 76. 568. 1301599885 7767. 9546916987 77. 567. 8236012354 7867. 7364488543 78. 567. 6060795968 7967. 4356191042 79. 567. 3062346944 8067. 1343753532 80. 567. 0059664509 8166. 8779701381 81. 566. 7530370835 8266. 6258478378 82. 566. 4568885878 8366. 3306349005 83. 566. 2047769896 8466. 0819216697 84. 565. 8736640719 8565. 7492234355 85. 565. 5838960553 8665. 4192406159 86. 65. 2987457504 8765. 1352396558 87. 564. 9317753786 8864. 769730673 88. 564. 5705872535 8964. 4099615782 31/03/2009 14:17:02 . hexane TimeTemperature Temp s°C 025. 9046524336 0. 525. 8350934716 125. 8350934716 1. 525. 8350934716 225. 9046524336 2. 525. 9278388383 325. 9278388383 3. 526. 020585182 426. 2060837275 4. 526. 4829077012 526. 8061721927 5. 527. 2223573371 627. 6852121859 6. 528. 2399674799 728. 8899929913 7. 529. 5397391033 830. 2142956025 8. 530. 9625046246 932. 1583765921 9. 533. 290992251 1034. 1702304366 10. 534. 9107350849 1135. 2946554348 11. 535. 2705312867 1234. 9107350849 12. 534. 4800183226 1334. 1463148418 13. 533. 835144828 1433. 6703474939 14. 533. 4798052884 1533. 2672214665 15. 533. 1009286934 1632. 9125782017 16. 532. 7229684359 1732. 5587183317 17. 532. 3931509416 1832. 2513627957 18. 532. 0875625448 1931. 9696008087 19. 531. 8045814029 2031. 6647230264 20. 531. 547026381 2131. 4058833475 21. 531. 3133121879 2231. 1723317349 22. 531. 0549205502 2330. 9390401853 23. 530. 8686619259 2430. 7514143241 24. 530. 6576599538 2530. 5873691871 25. 530. 5185632496 2630. 4717280743 26. 530. 4483139218 2730. 4014924296 27. 530. 4014924296 2830. 4717280743 28. 530. 5185632496 2930. 6107970839 29. 530. 6576599538 3030. 7514143241 30. 530. 774858949 3130. 217555187 31. 530. 8686619259 3230. 9155782635 32. 530. 9625046246 3331. 0079741833 33. 531. 0079741833 3431. 0549205502 34. 531. 0549205502 3531. 1018772173 35. 531. 1253594426 3631. 1488442779 36. 531. 1723317349 3731. 1958218254 37. 531. 2193145609 3831. 2193145609 38. 531. 2428099532 3931. 2428099532 39. 531. 266308014 4031. 266308014 40. 531. 266308014 4131. 3133121879 41. 531. 289808755 4231. 3133121879 42. 531. 266308014 4331. 266308014 43. 531. 266308014 4431. 266308014 44. 531. 266308014 4531. 266308014 45. 531. 266308014 4631. 2428099532 46. 531. 2428099532 4731. 2428099532 47. 531. 2193145609 4831. 2193145609 48. 531. 2193145609 931. 2193145609 49. 531. 2193145609 5031. 1958218254 50. 531. 1958218254 5131. 1958218254 51. 531. 1958218254 5231. 1958218254 52. 531. 1958218254 5331. 1958218254 53. 531. 1958218254 5431. 1488442779 54. 531. 1488442779 5531. 1488442779 55. 531. 1253594426 5631. 1253594426 56. 531. 1018772173 5731. 0783975904 57. 531. 0549205502 5831. 0549205502 58. 531. 0549205502 5931. 0314460851 59. 531. 0079741833 6031. 0079741833 60. 530. 9625046246 6130. 9625046246 61. 530. 9390401853 6230. 8921188476 62. 530. 8686619259 6330. 8452074868 63. 530. 8217555187 6430. 774858949 64. 530. 774858949 6530. 7514143241 65. 530. 7514143241 6630. 7279721238 66. 30. 6810949502 6730. 6810949502 67. 530. 6576599538 6830. 6342273356 68. 530. 6342273356 6930. 5873691871 69. 530. 5873691871 7030. 5654076624 70. 530. 5419842955 7130. 5185632496 71. 530. 5185632496 7230. 4717280743 72. 530. 4483139218 7330. 4249020441 73. 530. 4014924296 7430. 3780850666 74. 530. 3312770495 7530. 3078763722 75. 530. 2844779004 7630. 2376875271 76. 530. 2142956025 7730. 1689798834 77. 530. 1222107806 7830. 1222107806 78. 530. 0988294061 7930. 0754501341 79. 530. 0754501341 8030. 0286978518 80. 530. 0520729532 8130. 0053248185 81. 529. 9585849102 8229. 9352180121 82. 529. 9118531363 8329. 8884902711 83. 529. 8417705267 429. 8184136246 84. 529. 7731652079 8529. 7498140447 85. 529. 7264648127 8629. 7031175004 86. 529. 6564285889 8729. 6330869669 87. 529. 6330869669 8829. 5864093331 88. 529. 5864093331 8929. 5397391033 89. 529. 5397391033 9029. 5164067363 90. 529. 4930761861 9129. 4697474411 91. 529. 44642049 9229. 4230953214 92. 529. 3997719237 9329. 3779078368 93. 529. 3312695767 9429. 3079530415 94. 529. 284638221 9529. 2613251037 95. 529. 2380136783 9629. 2147039334 96. 529. 1913958575 9729. 1680894393 97. 529. 1680894393 9829. 1447846673 98. 529. 1447846673 9929. 1214815303 99. 529. 0748801152 10029. 0282851029 100. 528. 9831522046 10128. 9365695317 01. 528. 8899929913 10228. 8434224924 102. 528. 7735778729 10328. 7270220798 103. 528. 6571990928 10428. 6339275723 104. 528. 5888429337 10528. 5423093192 105. 528. 4725189238 10628. 449258087 106. 528. 4027402878 10728. 3562275787 107. 528. 3329731046 31/03/2009 14:17:02 . methanol TimeTemperature Temp s°C 023. 4318094417 0. 523. 3853134491 123. 3620636345 1. 523. 3388125917 223. 3155603088 2. 523. 2923067738 323. 2923067738 3. 523. 3155603088 423. 4550556436 4. 523. 7092364924 524. 1026113257 5. 524. 9350755969 626. 0437720064 6. 527. 2455652838 728. 5888429337 7. 530. 0988294061 831. 6176358131 8. 533. 148422694 934. 7665030677 9. 536. 321106047 1037. 8475222683 10. 539. 4101964025 1141. 0266433612 11. 542. 702573212 1244. 4194136246 12. 546. 1241596052 1347. 8479521392 13. 549. 7111441826 1452. 0343928648 14. 554. 3700724994 1556. 2534396357 15. 557. 6332771328 1659. 0183793721 16. 560. 1953502824 1760. 9986795366 17. 561. 5543368521 1862. 0793755959 18. 562. 4601192572 Discussion/Analysis: My results were surprising because I didn’t expect that much difference results from internet and mine. The results for Hexane for example was much quicker than I expected, I found that it boiling point was 60C but in my experiment it was 30 C it’s the double of what it should be.

Most of the sample like methanol and ethanol was pretty clos to the result that I found on internet. The trial that I did was Butanol again with the hot plates and it took of course much longer to boil and it started to boil before 105 °C like at 103 °C and I didn’t expect that happen maybe because of the boiling water it accelerated the boiling point. I don’t consider my results as a failure because it maybe prooves that internet is not always right but I cannot as well proove that my results are clear eather.

Next time to improve my experiment I would do more trials because I just did one trial which was butanol and more you repeat experiment and more you have more precise results, and I didn’t had that. Conclusion: So the results that I got on my sample was different from the one that I found on internet. For butanol the boiling point reach 105°C instead of 117°C, Ethanol I got 77°c instead of 78. 4 which is pretty close, Hexane my boiling point was 2 times less that the one on internet I got 30 °C instead 68°C and it was very surprising, and for Methanol I got 62°C instead of 64. °C so it was close. Each sample took pretty much 1 minute to start to boil and I thought it would take much longer. So I was right that my experiment would be slighlty different from the internet except for Hexane who had a big different between the two results. References: http://www. inchem. org/documents/icsc/icsc/eics0111. htm http://www. chemicalland21. com http://www. apps. kemi. se/flodessok/floden/kemamne_eng/hexaner_eng. htm http://msds. chem. ox. ac. uk/ME/methyl_alcohol. html http://www. ucc. ie/academic/chem/dolchem/html/comp/ethanol. html

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The Boiling Point Experiment. (2018, Feb 26). Retrieved from https://graduateway.com/the-boiling-point-experiment/

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