Sodium bicarbonate

of the product, the appearance of the reaction mixture changed. The main solution containing dicholormethane, benzyltriphenylphosphorium and benzaldehyde was cloudy and white. This solution changed colors when the sodium hydroxide solution was added. After only a small amount of sodium hydroxide solution was added, the reaction solution became…

different brands of vinegar to see which is the most cost effective. Materials – • Apron • Safety Glasses • Hair Tie (If appropriate) • 50mL burette • 250mL conical flask • 2 x Beaker • Measuring Cylinder • Labels • Pencil • Standard solution of Sodium Hydroxide, NaOH(aq) • Two different brands of vinegar • Phenolphthalein Indicator • A clean white tile • Distilled water • Retort Stand • Funnel • Electronic Balance Method – Pre-Practical 1. Put on and tie up safety apron. 2. Put on safety…

The purpose of this experiment was to see if different fragrances affected a soap’s antibacterial properties. In this experiment, non-scented Alconox soap was used as the control. The experimental groups consisted of Joy lemon dishwashing soap, Dawn Escapes New Zealand Springs dishwashing soap, and the soap from the campus bathroom dispenser. The subject’s hands were washed with each of these soaps for approximately 30 seconds with each soap. The subject’s right hand was swabbed for each sample.…

Purpose The purpose of this lab is to investigate animal behaviors by diving into the world of ethology. There are two ways pill bugs will respond to environmental stimuli: Kinesis (non-directional response) and taxis (directional response). Kinesis occurs when organisms (randomly) move around quickly when they’re unhappy and slowly when they’re happy, which is best demonstrated when one lifts up a rock or other material that the pill bugs are under. In contrast to the simpler response that does…

3.7.1. Effect of solvent and pH The influence of the solvent on Schiff base ligand L and its metal(II) complexes were studied. The results showed that the optimal solvent for Schiff base ligand L, Co(II), Ni(II) and Cu(II) complexes were CH3CN at λemi =320, 310, 316 and 330 nm, while the optimal solvent for Mn(II) complex was DMF λemi = 312 nm, as shown in Figure 7. The effect pH on the fluorescence intensity of Schiff base ligand L and its metal(II) complexes were investigated between…

Meta description: Potassium phosphate is a supplement that is used to treat or prevent hypophosphatemia. Potassium phosphate is an injection supplement used as a preventative in order to remedy low phosphorus in the blood. Overview Potassium phosphate is an intravenous injection used to prevent or treat hypophosphatemia, low phosphorus in the blood, through the use of a concentrated solution mixture of monobasic and dibasic potassium. Phosphorus occurs naturally in every cell in the body and…

2.1 Polydimethylsiloxane (PDMS) Polydimethylsiloxane (PDMS) own to a group of polymeric organosilicon compounds that are commonly stated as silicones. PDMS is optically clear, and, in general, non-flammable, non-toxic, and inert. PDMS is viscoelastic, meaning that at long flow times (or high temperatures), it acts like a viscous liquid such as honey. However, at short flow times (or low temperatures), it acts like an elastic solid such as rubber. In other words, PDMS will flow to cover the…

Section Two - Oral Liquid Formulations (1) Characteristics of Suspensions: The oral liquid dosage form chosen to formulate was that of a suspension. Given the criteria of Drug Y it was thought best to formulate the drug as a suspension. Suspensions can be defined as ''a class of materials in which one phase, a solid, is dispersed in a second phase, generally a liquid.'' (1) There are many characteristics of suspensions that are relevant when formulating such a dosage form. They are as follows;…

Recipe: 60 Calories: 50 Cooking Time: 1 hour Ingredients: 1. Cold Water – 1 cup (250ml) 2. Condensed milk – 396 g, Sweetened 3. Baking soda - ½ teaspoon (3g) 4. Warm water - 3 tablespoons (45ml) Nutritional Information: 1. Total Fat – 1.5 g 2. Sodium- 20.0 mg 3. Total Carbs- 11.5 g 4. Fiber- 0.0 g 5. Cholesterol – 5.0 mg Directions: 1. To start with the recipe, set the timer of the Power Pressure Cooker to 40-60 minutes and press the ‘Meat/Chicken’ button. 2. Now, create the baking soda…

concentration the unknown was determined. Although there was no hypothesis made before the experiment as it was not required. With the required equipment, Hydrochloric acid was poured into a burette upto 0mL. A pipette was used to gather 25.0 cm3 of Sodium Hydroxide and transfer it into a Beaker. However during the experiment, 25.0 cm3 was converted into dm3, which resulted as 0.0250 dm3. The Beaker was placed underneath the Burette during the titration process. During the setup, a temperature…