Distinction of pH levels of Orange Juice and Milk of Magnesia in comparison to Distilled Water Cooper‚ A.‚ Do‚ J.‚ Francois‚ F.‚ Olaleye‚ O. Lab Section LA: 06/20/2012 Introduction pH is the measurement of the concentration of hydrogen ions in a certain solution. Solutions or substances that have a higher concentration of hydrogen ions are considered acidic on the pH scale. Therefore‚ a solution with low concentration of hydrogen ions is basic on the pH scale. The pH scale is a universal means
Premium Acid Base Chemistry
In part 1 the results of the solubility do not agree with the with rules of solubility most likely because we put too much solid in the test tubes and not enough water to dissolve it. They should have dissolved because the anything with nitrate should be soluble. With the pH‚ when the mixture where compared with the chart all of them except NaCl where a shade of blue which means that they have a pH of 8-14‚ depending on the darkness of the shade‚ meaning that they are a basic solution. When reacting
Premium Chemistry Water Acid
Bromination of Acetanilide Objective: The objective of this experiment was to use melting point and NMR to determine which of two isomers‚ ortho or para‚ would most likely form after brominating Acetanilide through electrophilic aromatic substitution. Procedure/Observations: 1. Weigh out ~280 mg of acetanilide in a 10 mL r.b. flask with a stir bar. 2. Then‚ add 2.0 mL of glacial acetic acid using a calibrated Pasteur pipet. 3. Stir the mixture until all of the acetanilide has dissolved
Premium Stoichiometry Ethanol Oxygen
Jay Patel 10/21/11-10/21/11 Lab Partners: Isha Dihora‚ Shivandu Patel‚ Dilan Kapadia Standardizing a Solution of Potassium Hydroxide Abstract: In this lab‚ a prepared solution of Potassium Hydroxide will be standardized. The solution we will be standardized by performing multiple calculations to ensure the upmost accuracy. The acid used for this titration will be KHP (C4H5KO4). Phenolphthalein we be added to the beaker of the dissolved acid before the titration will be added. The titration
Premium Sodium hydroxide Base PH indicator
1.2.4.4 Sub-criteria standardization The standardization process consisted in conversing cell values of the sub-criteria layers into a common [0-1] scale. The minimum 0 corresponds to the less desirable condition with regards to aquifer recharge with reclaimed water and 1 the most desirable condition. The cell values of all continuous numerical sub-criteria (e.g. slope‚ soil salinity and unsaturated zone depth) were rescaled using fuzzy linear membership functions. For categorical layers (e.g. soil
Premium Water Acid Base
Title: Physical and Chemical Properties Purpose: To investigate the physical and chemical properties of pure substances as distinguishing characteristics. Procedure: 1. Set up a well plate with 24 pieces and fill two with either Dilute HCl or Dilute NaOH. 2. Set up four test tubes with any single substance in each one. 3. Observe and record original color and odor of substance. 4. Light flame with matches. -Hold test tube with substance in it over flame with clamps -Observe and record
Premium Chemistry Sodium hydroxide Base
Paramecium is a unicellular ciliate from the kingdom Protista. Paramecium can swim in the water. However‚ when you add different chemical into water‚ it will affect the swimming speed of the paramecium. The various students groups have individual experiment of how dose NaCl affect swimming speed of Paramecium‚ but the experiment did not show the result clearly to students. Therefore‚ after they finish the presentation‚ most of the students want to find out the chemical NaCl increases swim speed of
Premium Oxide Acid Base
The first step was to prepare 400 mL of an 0.1 M solution of NaOH. This was done by diluting from the 6 M solution that was provided. Next‚ 0.715g of KHP was weighed using the glazed paper and the triple beam balance. The KHP was then transferred to the 250 mL Erlenmeyer flask. Using a graduated cylinder‚ 50 mL of deionized water was measured and added to the flask. The KHP was dissolved in the water‚ and few drops of phenolphthalein were added. Moreover‚ the burette was rinsed with deionized water
Premium Erlenmeyer flask Sodium hydroxide Laboratory glassware
Analysis: 1. What volume of ammonium sulphate was required to give rise to precipitation? Tube 1: 5.5mls of (NH₄)₂SO₄ was required to give rise to precipitation. 5.5ml/20ml *100% = 27.5% Tube 2: 6.7mls of (NH₄)₂SO₄ was required to give rise to precipitation. 6.7ml/20ml *100% = 33.5% Tube 3: 5.6mls of (NH₄)₂SO₄ was required to give rise to precipitation. 5.6ml/20ml *100% = 28.0% Tube 4: 6.2mls of (NH₄)₂SO₄ was required to give rise to precipitation. 6.2ml/20ml *100% = 30.5% 1. From the
Premium Water Solubility Precipitation
In the experiment‚ 0.3 g of mixture was dissolved in 3 mL of t-butyl methyl ether in a centrifuge tube. Then‚ 2 mL of 0.5 M NaHCO3 was added‚ shaken for one minute‚ and allowed to sit for two minutes so the layers could separate. The lower water layer was removed with a Pasteur pipette and placed in a test tube labeled “Acid.” Next‚ 0.5 mL of distilled water was added to wash the ether layer in the centrifuge tube and then discarded. 2 mL of 0.5 M NaOH was added to the remaining layer‚ shaken for
Premium Sodium hydroxide Base Chemistry