Sodium hypochlorite

Since Dmitri Mendeleev created his periodic table of elements in 1869, scientists have worked to identify the materials that make up the world around us. While many discoveries were made through fairly benign methods, there have been some horrifying deaths along the way. Marie and Pierre Curie’s work with radioactive material killed the married couple. In fact, their notebooks are still so highly contaminated that researchers have chosen to lock them away. There has always been a bit of excitement

its physical and chemical properties. In order to do so, a solubility test, a flame test, and ion tests were conducted. From the results of these initial tests and the given list of compounds, the unknown white compound was thought to be composed of sodium and a halide (I-, Br-, or Cl-). Of the list, NaCl was the appropriate compound, however NaC2H3O3 was also tested out of skepticism. To verify the identity of the substance, the solubility and flame tests were performed again along with a pH test.

moving at a pretty fast speed. They had the same avoidance frequency of 1.6. The duration of the movement was 11.7 (I watched the paramecium for 15 minutes for this test because I forgot to start my timer at the beginning.) The type of effect the sodium solution had on the motion of the paramecium was that they only moved forward for half the time, the other half of the time they were in a jerking motion and a paranoid motion as well. Their avoidance frequency was 4.8, which is much higher than the

the ATPase's K+ affinity, causing the release of K+ into the cell (Lehninger et al. 2000). It is the above process that is responsible for approximately 25% of the bodies daily ATP breakdown and consequent energy usage (Lehninger et al. 2000). The sodium and potassium ions, and the large concentration gradients that exist, consist a vital physiological feature of the cell, and one that is implicated in myriad cellular processes. The main cellular process, as mentioned above, for which the Na/K-ATPase

the furosemide would be: urine output, lung sounds (no crackles) and daily weights. 6. What laboratory tests should be ordered for M.G. related to the order for furosemide (Lasix)? (Select all that apply) a. Magnesium level b. Sodium level c. Complete blood count (CBC) d. Serum glucose levels e. Potassium level f. Coagulation studies 7. What is the purpose of the beta blocker carvedilol? It is given to: g. Increase the contractility of

concentrated sulphuric acid, and set up the apparatus as shown below, but with a stopper in place of the dropping funnel. We ensured that all the glass joints were greased. [IMAGE] We then had to make up a solution containing 5g of sodium

The pH of different liquids before and after they are filtered Problem Does filtering different liquids cause the pH to change? Hypothesis: The pH of the dirty water and the salt/bicarb soda/sugar water will change the most drastically when they are filtered. Aim: To investigate the effectiveness of a natural water filter on the pH of different liquids. Materials: • Green Science Clean Water Kit (includes plastic filter system, active carbon, sand, rocks, and filter paper) • pH Indicator

In this lab, we will be learning about endothermic reactions and exothermic reactions through experiments involving temperature probes. The first reaction we will be performing involves citric acid and baking soda, and the second reaction involves magnesium metal hydrochloric acid. The two reactions for this are: H3C6HO7(aq) + NaHCO3(s) 3 CO2(g) + Na3C6H5O7(aq) And Mg(s) + 2 HCl(aq) H2(g) + MgCl2(aq) Objectives: Learn how to use a temperature probe. Experiment the difference between endothermic

Title: The effect of Hydrochloric Acid volume with Sodium Thiosulphate on the reaction rate. Introduction: Research Question: How does changing the volume of Hydrochloric Acid on Sodium Thiosulphate effect the time taken for the ‘X’ Mark to dissapear? The rate of a chemical reaction is the time required for a given quantity of reactant to be changed to product. The unit of time may be seconds, minutes, hours, days or years. For a chemical reaction to occur it needs to have a collision, and it is

Title: The Difference Soap Makes Hypothesis: Washing with soap for a longer period of time yields cleaner hands than washing with only water, or washing with soap for a short period of time. Materials and Procedure: Soap, Blindfold, Paint. Two experimental conditions were used, one with soap and one without. Two participants. One participant placed paint on his or her hands, and washed hands with soap four times: once for 1 second; once for 5 seconds, and once for 20 seconds. The second participant