Soda Ash Analysis and Volumetric Analysis of a Carbonate-Bicarbonate Mixture De Guzman‚ Danica Justine R. Department of Chemical Engineering‚ Faculty of Engineering University of Santo Tomas Espana‚ Manila Abstract Titration is a laboratory method in which the endpoint of a reaction is determined quantitatively. In this experiment‚ the amount of soda ash present in a sample was determined and the alkalinity reported as it was titrated using HCl as the titrant. Also‚ the percentage
Premium Acid Carbon dioxide Chemistry
The Stereochemistry of Bromine Addition: Bromination of trans-Cinnamic Acid Pitak Chuawong Objectives 1. To perform bromination of trans-‐cinnamic acid 2. To investigate stereochemistry of bromination reaction Introduction Alkenes undergo electrophilic addition to give alkyl halides. When bromine is used as a
Premium Bromine Acid Sodium
Fig. (3.12): Cylinders after being removed from the molds and curing Fig. (3.13): Cubes after being removed from the molds and curing Fig. (3.14): Prisms after being removed from the molds and curing 3.5.7. Preparation of specimen’s surface: The specimen’s surface is important since it has variable influences on mechanical properties. So the specimens were prepared to have a smooth and parallel bearing surface. These specimens were perpendicular to the axial load during all the tests‚ as
Premium Chemistry Water Solvent
Introduction : "Aromatic" and "aromatic compound" sidetrack here. For implications identified with odor‚ see fragrance compound. Two distinctive reverberation types of benzene (top) consolidate to create a normal structure (base) In natural science‚ the term aromaticity is utilized to depict a cyclic (ring-molded)‚ planar (level) particle that shows strange dependability when contrasted with other geometric or connective game plans of the same arrangement of iotas. As an aftereffect of their security
Premium Oxygen Solvent Chemistry
Cartesian Diver Essay The Cartesian Diver is named after the French scientist Rene Descartes. This experiment is supposed to show buoyancy‚ density and different forms of matter at work‚ when demonstrated. To create the Cartesian Diver‚ you’ll simply need: • A empty plastic bottle • A plastic eye dropper • Water 1. Fill the bottle with water‚ but be cautious of spills. 2. Very carefully‚ drop the dropper inside the bottle. Then‚ seal the cap on very tightly. 3. Squeeze the bottle‚ but not too
Premium Water Liquid Chemistry
3.3. Characterization of the S2 VNP loaded liquid SNEDDS 3.3.1. Assessment of self-emulsification efficiency The emulsification time for S2‚ which is the time needed for SNEDDS to form homogeneous transparent mixture upon dilution‚ was 12 sec when 1 gm of VNP SNEDDS was added to 200 ml of 0.1 N HCl. When the same experiment was performed but by using 500 ml distilled water‚ the time required for the complete disappearance of SNEDDS was 14 sec. The emulsification in both media is under grade A of
Premium Water Chemistry Acetic acid
The kinetic equation‚ half-life values‚ correlation coefficient and pre-harvest interval (PHI) of the trifloxystrobin and tebuconazole residue dissipation were calculated from the experimental data and summarized in Table 4. The dissipation dynamics of trifloxystrobin on green tea leaves followed a first-order rate equation as follows C = 2.5472e-0.245x (r=0.9797) and C = 6.5457e-0.207x (r= 0.9804) with the half-life of 2.83 and 3.34 days for trifloxystrobin at RD and DRD‚ respectively. The half-life
Premium Water Chemistry Solvent
What is the Difference between Flammable and Combustible Liquids? Put simply‚ flammable and combustible liquids are liquids that can burn. The real difference lies within their flash point range‚ or lowest temperature at which vapours of the material will ignite when supplied with an ignition source. Flammable and combustible liquids are utilised in most workplaces‚ from manufacturing to retail and service entities. To ensure the safety of property‚ people‚ and the environment‚ both flammable
Premium Ethanol Ethanol Gas
1.1.1 Galacturonic Acid Analysis (for Pectin Analysis) Defattening of Mango Peel Powder (Tunchaiyaphum et al.‚ 2013) 1. Weigh about 3 g sample and put into thimble of the soxhlet extractor. 2. Pour in 150 mL of absolute ethanol to the flask of the soxhlet extractor. 3. Extract at boiling temperature of ethanol for 4 hours. 4. Remove solid contents from the thimble. Set aside to dry. Acid Hydrolysis of MPP (Rehman et al.‚ 2004) 1. Mix defatted peel powder with water at pH 2.5 adjusted w/ 0.1 N H2SO4
Premium Acetic acid Ethanol Sodium hydroxide
For the first part of the experiment‚ it began by weighing 4.0ml of methyl salicylate into a flask—a stir bar was added. While stirring‚ 40ml of 6M sodium hydroxide was added and the solution was heated and boiled for about 15 minutes. After the 15 minutes‚ a bit of water was used to wash down the sides of the flask and the solution was cooled. It was boiled for another 15 minutes‚ after this the solution was cooled for 5 minutes in an ice water bath. While the flaks was in the ice bath‚ 50ml of
Premium Chemistry Water Acetic acid