Fraction

Madeline Danielson Ms. Prewitt H. Algebra II – E Block 8 May 2017 Egyptian Numbers The numbers of Ancient Egypt arose around 3000 BC. At this time the Egyptian society was already advanced, urbanized, and expanding rapidly long before the creation of the written numeral system. The new advances in mathematics became too detailed for the human brain to remember so the need arose for the written system. The Egyptians felt the need to move away from oral culture because of the importance of the…

Through both simple and fractional distillation an equimolar solution of ethyl acetate and propyl acetate was seperated. After distilling 20 mL of the mixture the samples were collected in fractions, which were then analyzed using gas chromatography. The mole ratios of the distillations were converted to a percentage to analyze percent composition. Simple distillation yielded the following results: S1- 69.88% EA/ 30.12% PA, S2- 66.73% EA/ 33.27% PA, and S3- 46.42% EA, 53.58% PA. Fractional…

The reason for this is because ethanol has a lower boiling point than water. The density of the fractions increased as the experiment progressed because more water was contained in the distillate of which water is heavier than ethanol. The percent of ethanol decreased as the experiment progressed while the water percentage increased. To increase the purity of the ethanol in the first fraction the temperature should be kept at a constant temperature that boils the ethanol yet does not boil the…

often a hindrance to protein purification in bacterial extracts. Assay of the nucleic acid-free supernatant (S-fraction) and the nucleic acid-containing precipitate (P-fraction) showed them to be devoid of dTTP incorporation activity. However, when the two fractions were combined, activity was restored. Kornberg and his team observed that prior incubation of the extract or the P-fraction for a few minutes at 37 °C substantially increased activity. Clearly more than one enzyme was required for…

4.3 High Performance Liquid Chromatography (HPLC) An HPLC analysis was carried out for the Fraction C2-7 for confirmation of the results obtained by TLC analysis. According to the HPLC chromatogram, there is only one peak was observed at the retention time of 4.510 minutes. Therefore, it can be concluded that there is only one compound presents in the Fraction C2-7. Basically, the first few small peaks in the chromatogram which is around 2-3 minutes are ‘noise’ from the injection that been made…

Lesson Title: Measuring volcano eruptions Describe the classroom environment (location, environment, class size, range of academic levels special needs, home language Math/Science, 6th grade, 20 students There is a cultural diversity in my class; Caucasian, Hispanic, African American, Asian. In the class 80% of the students get free lunch 15% gets reduced lunch and of the free lunch 75% live in a one parent home. As for the reduced lunch 12% live in a one parent home. Students have good…

developed in this research to compare the equilibrium and experimental mole fraction of the product gases obtained from different bed materials. Figure 5 illustrates the evolution of the experimental mole fraction of the product gases for various bed materials. Also, a horizontal line indicates equilibrium mole fractions estimated by the thermodynamic model. It must be pointed out that the estimated equilibrium mole fractions of the product gases are expressed on a dry basis to be able to…

Sr.no. % Vol. fraction of Fiber Jute/Epoxy Composite Tensile Strength (MPA) Coir/Epoxy Composite Tensile Strength (MPA) 01 8.3 26.44 28.07 02 10 28.55 27.72 03 12.5 17.73 26.28 Table 2: Tensile strength of composites Figure 6: Tensile strength of jute/coir epoxy composite The test results for tensile strengths are shown in table 2. It is seen that the tensile strength of the jute/epoxy composite increases with increase in fiber volume fraction up to 10 vol. %…

the next few weeks were going to be all about fractions, I had asked if he remembered much about fractions and gave him a few different fraction operations to solve. He remembered a few things about fractions but it was clear that he didn’t remember too much about fractions. I had an idea of what I needed to do over the next few weeks. I then planned to come in Monday, Wednesday, and Friday to teach math…

uliginosum. Yeild of ethanol soluble fraction of V. myrtillus was more than double than from V. uliginosum. 6.4.1. Fluorescence of various fractions of V. macrocarpon, V. myrtillus and V. uliginosum Fluorescence analysis is an important phenomenon exhibited by various chemical constituents present in plant material. Some crude drugs are often assessed qualitatively based on the fluorescent colour. The fluorescence study of different fractions of V. macrocarpon, V. myrtillus and…