Sodium thiopental

acid in the stomach reaches the esophagus. One will hope to stay away from a more complex problem: GERD or gastro esophageal reflux disease (1). Bases can be extremely important to one’s health and wellness. Common bases include sodium hydroxide, sodium bicarbonate, sodium carbonate, and ammonia. They usually have a bitter taste and a slick feel. They can be used for a variety of things: NaHCO3 is an ingredient in baking soda. Not only are they used for food and health benefits, but bases are…

crystallize under such low temperature. In part II, the filtrate now contains more chloride and sodium ions, so NaCl is to be removed next. Since NaCl is the least soluble out of the four possible salts at the majority of temperatures, but does not change solubility very much with the change of temperature. Therefore, the best way to crystallize NaCl is by evaporation. Through evaporation, the concentrations of sodium ions and chloride ions increased. The concentrations of the ions were so high…

Introduction Brine shrimp are creatures that are known to thrive in harsher conditions, so they make an ideal research subject because of their durability. They are a native species of the Great Salt Lake, proving that they can withstand a high water salinity of up to 20 %+ ( https://microbewiki.kenyon.edu/index.php/Salt_Lake). Brine shrimp range from around 8-10 mm, including the tail. They have nineteen body segments, 11 of them include twenty-two legs total. Brine shrimp have an exoskeleton…

In this experiment, two cations in an unknown solution were found using qualitative analysis. For Part A, the solution was to contain either silver or lead, while in Part B, the solution that was set on the side form Part A was identified to contain either calcium or barium. Part C explored a different method through the use of cation flame tests to observe colored flames from six metal chloride solutions. In Part A, the initial step was to add HCl to the unknown sample. This was necessary…

completion. By titrating an unknown concentration of acid or base with a known concentration of acid or base, you can calculate properties such as the concentration and pKa of the analyte. During the standardization part of this reaction, we are adding Sodium Hydroxide, NaOH to a solution…

were attracted to the oxygen (negative) end of the water molecules, and the negative Cl- ions were attracted to the hydrogen (positive) end of the water molecules. As an end result, the ionic bond between the sodium and the chloride was broken. CuSO4(s) ⇔ Cu+2(aq) + SO4-2(aq) Like the sodium chloride, the copper sulphate was split into its individual ionic components. The positive Cu+2 ions were attracted to the oxygen (negative) end of the water molecules, and the negative SO4-2 ions were…

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…