Sodium compounds

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  • Chromogenic Reagent Lab Report

    hydroxide, then not enough iron to produce a substantial amount of complex to create a noticeable color change. Consequently, the maximum absorbance of the iron (III)-thiocyanate depends on the pH and duration. Anion Effects: Different salts were added to determine if solvent composition has an effect on the maximum absorbance. The mixture between the complex and sodium fluoride had a significant reduction in the color of the complex. This could result from iron (III) binding to the fluoride ions. This causes a shift in equilibrium. Sodium oxalate also decreased the shade of complex, to the eye it was believed to be colorless. The sodium oxalate more effect on the complex in comparison to sodium fluoride. This may also be due to the same reasons as sodium fluoride. Both sodium tartrate and dihydrogen phosphate had minor effects of the shade of the complex. To the eye, sodium tartrate did not have an apparent change on the color, however, the color change for dihydrogen phosphate was able to be witnessed by the human eye. This slight effect on the complex color could have resulted due to the size of the anions, especially sodium tartrate. Figure 8 shown below is the graph representing the changes due to the addition of different anions: Linearity and Sensitivity The linearity and sensitivity of the iron(III) complex was analyzed to determine if the complex system follows Beer’s Law and whether the spectrophotometric method and the complex system is effective in testing…

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  • Guided Reading Lesson Plan

    By creating guided reading lesson plans, I was able to help my students develop their phonemic awareness by incorporating word work activities that involved working with multisyllabic words. Therefore, the students were able to understand that words and syllables are made up of sequence of sounds. The word work activity in the informative text got the students to increase their vocabulary and spelling knowledge by working with compound words. The word work activities in both lessons also…

    Words: 1073 - Pages: 5
  • Theme Of Ambiguity In Beowulf

    In the compound “slaughter/fall” (125) the second element can not only mean “a fall in battle” but also “feast” or “fill.” So there is sometimes doubt about accuracy in translating. In the Finnsburh Episode the Danes are fighting the Frisians, and the poet says: “So they offered terms [of peace]” (1085). The “they” (hig) is indefinete and could refer to either warring party – intentional ambiguity; there is debate among scholars as to the proper referent of “they.” In line 1149 a sea-journey is…

    Words: 1688 - Pages: 7
  • Effects Of Sodium Polyacrylate

    Sodium polyacrylate is a polymer with a unique structure, that chemists are leveraging in a variety of lucrative industrial applications. Sodium polyacrylate possesses a unique chemical property: the ability to absorb incredible amounts of water. It can absorb 300 to 800 times its weight in water (Superabsorbent Polymers). Industrial chemists have taken advantage of the polymer’s special function, and have incorporated it into dozens of different products. In fact, the industry behind…

    Words: 826 - Pages: 4
  • Phonological Medley Analysis

    medley. The phonological medley equips students with the ability to use two syllable compound words. This lesson model assists students in becoming familiar with blending, deletion and segmentation. It is presented on chapter five titled Phonological Awareness and the lesson is on page 132. 2. Why did the approach appeal to you? What did you like about it? Why would you recommend it to other teachers? The phonological medley is a highly interactive lesson that gives students the opportunity…

    Words: 1225 - Pages: 5
  • Physical And Chemical Change Lab

    liquid form. This is a physical change because its actual material that it consisted didn’t change, meaning, it’s still sugar, but in liquid form. Mixing solid copper sulphate with water is a physical change because a new substance was never formed and the copper sulphate is still copper sulphate, but in a different state. Plus the fact that the final product turned into a mixture (solution), which is another sign of a physical change. The changes I examined that were chemical in my experiment…

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  • Potassium Hydroxide Experiment

    strength of the solid compounds was supported with this experiment. The hypothesis stated that potassium hydroxide would have the greatest effect on the acidic solution. This was supported here as it had the highest average change in pH by far. On average, the pH value of the acidic solution increased by 12.5. This is significantly higher than the increase of the other solutions, which only increased around a pH of 4. The reason why potassium hydroxide seemed to be the strongest alkaline-forming…

    Words: 1215 - Pages: 5
  • Ammonium Perchlorate Lab Report

    There is also a decrease in concentration of hydroxylamine, which presumably reacts with oxygen and gives nitrogen dioxide and water. The other reaction that decomposes ammonia is formation of molecular nitrogen and hydrogen, either molecular or atomic. The unreacted oxygen atoms form molecular oxygen. Chlorates decompose to chlorites and chlorine dioxide. The main results obtained in this study are based on the simulations and quantitative data about change in concentration in time. This is one…

    Words: 1761 - Pages: 8
  • Isoprenaline Hydrochloride Concentration Lab Report

    Determination of Isoprenaline Hydrochloride Concentration Using Ultra Violet/ Visible Spectroscopy and Quantification of Sodium and Potassium Using Flame Spectroscopy Introduction In UV/VIS (ultraviolet-visible light) spectroscopy, light absorption as a function of various wavelengths gives data about electronic transitions within a solution [1]. The electronic transitions involve exciting an electron from one principle quantum state to another by the absorption of energy [2]. A change in…

    Words: 855 - Pages: 4
  • Lab Report: Redox Chemical Reactions

    soup” green when it was fully reacted with the two reactants. Part III started with reaction eleven that created bubbles, smoke, and it was fizzing while turning completely white when it reacted. The solid, when dissolved, also created an evolution of foaming gas. The physical observations of reaction twelve where it started to bubbled like a soda, started to fizz and the solution was clear. Then, in reaction thirteen, it turned into a white and foamy substance that kind of looked like milk and…

    Words: 1737 - Pages: 7
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