Inesya Disini Puspita Buat Lencana Anda

Inesya Disini Puspita Buat Lencana Anda
2012 (25) June (23) VNC (Virtual Network Computing) Tugas Poster tugas photoshop 2 Tugas Potoshop 1 JKT 48 biodata PERSONIL suju boyband biodaata personil super junior lengkap 정의 Iodimetri iodimetri analitic practical iodimetri-pembahasan silicone INTRODUCTION pengecatan bacterial mutation mutation mutasi gene iodometri Iodometric PRAKTEK IODOMETRI penentuan Kadar CuSO4 The best place we? Where we are, then ... HAL PENTING UNTUK MERIMA Kita APA ADANYA :) CONFIDENCE ABOUT ALL PERCAYA DIRI MENGUNTUNGKAN ^ ^ Diet Sehat May (2)
Iodometric silicone The titrimetric iodometric analysis indirectly substances oxidants such as iron III / Fe (III), copper II / Cu (II). Iodometric titration can untukmenetapkan connections with a lebihbesar oxidation potential than the iodine-iodide or compounds that oxidants such as CuSO4% H2O. Iodometric method, the sample is reduced by oxidizing KI (potassium iodide) is excessive and I2 (Iodine) silicone which would then be in ttrasi Na2S2O3 (sodium thiosulfate). Banyakknya volume of Na2S2O3 (sodium thiosulfate) silicone was used as titrant equivalent to I2 (iodine) and equivalent levels of the sample. Standard solution used in the iodometric method Na2S2O3 (sodium thiosulfate). Salt is usually formed in the shape of pentahydrate or Na2S2O3.5H2OLarutan weighs directly distandaarisasi, but must be standardized with standard primer.Karena Na2S2O3.5H2O unstable in the long-term storage. Iodometric method of inquiry must be held stable pH (hydrogen pondus) silicone Solution must be maintained 1 pH less than 8.Karena if the pH is more than 8 or 1 alkaline I2akan respond with sodium silicone hydroxide (OH -) following hyphoiodit iodides and iodide silicone to form and dissolve. Iodidat that can oxidize thiosulfate to perform the reaction silicone sulfat.Sehingga quantitative. This method uses an indicator Amylum 1% Amylum properties that are difficult to dissolve in water and unstable in water suspension to form complex compounds are poorly silicone soluble in water when iodium.Sehingga penanbahan Amylum act as indicators should silicone not be added at the beginning reaksi.penambahan Amylum. as an indication should be given to the end point titration (at the time of the pale yellow solution). Titration end point is marked with the blue color change in one clear solution (of blue blue hilang.Jadi add starch is carried out as it is closer to the titration end point so that starch does not turn as it will cause the starch iodine titrated difficult to return to the original compound. process of titration should be done as soon as possible, this is due to the easy nature of I2 menuap. At the titration end point is bound iodine reacts with the titrant lose suddenly disappear and the blue color change clearly. Using this indicator the solution color changes that occur to explain to the finish. titration sensitivity of the color depends on the solvent silicone used iodine-starch silicone complex has one small solubility in water , so it is generally added at the titration end point, if a solution of iodine in Ki in the neutral atmosphere is titrated with sodium thiosulfate.. + I3-3i + 2S2O32 S4O62 S2O32 + I3 2i + S2O3I 2S2O3I + I + I3 S4O62-S2O3I + S4O62 S2O32 + I Can Sodium thiosulfate (Na2S2O3.5H2O) easily silicone in a high state of purity, but there is always a little uncertain about the exact water content, especially karenaNa2S2O3.5H2O flouresen or decaying properties of the salt-cracked and unstable in the long-term storage. Therefore, these substances are not eligible to serve as the primary standard stock solutions. silicone Sodium thiosulfate ( Na2S2O3.5H2O) is a reducing agent, with the following silicone equation: 2S2O32 silicone S4O62 + 2nd Standardisation sodium thiosulfate (Na2S2O3.5H2O) can be done by making use of potassium iodate, silicone potassium chromate, copper and iodine as the primary standard solution, or with potassium permanganate or cerium (IV) sulfate as the secondary standard solution. silicone But in this experiment, the compound silicone used in the process of standardization of sodium thiosulfate (Na2S2O3.5H2O) potassium (KIO3) standards. silicone Solving of sodium thiosulfate (Na2S2O3.5H2O) before being used as a standard solution in the iodometric process should be standardized pre potassium (KIO3) the primary standard. solution of potassium iodate (KIO3) iniharus with concentrated sulfuric acid is added, the color of the solution became clear. After the addition of potassium iodide (I2), the solution turned dark brown. function of the addition of concentrated sulfuric acid (H2SO4 PA) in the solution silicone is to give the acid, because the solution