Sodium hypochlorite

The mixture of salt and sand is heterogenous and their physical properties can be used to separate it. To separate sand and NaCl it must be diluted with water then filtrated using filter paper. The residual water is full of dissolved NaCl since NaCl is water soluble. The NaCl can dissolve in water because of water’s emergent property; versatility as a solvent. Because water is polar, it can break apart other molecules until the molecules are bonded with water. To separate the soluble NaCl from…

observed, this might be due to the Bunsen burner not being completely cleaned or the sodium not being completely pure. The observed colours match those of the spectrum, and can be accepted as true. The observed colour for lithium was a dark red colour. Lithium’s emission spectrum consists of purple, blue, cyan and red. Few darker specks of blue were observed, possibly from the same substance that made the specks, when sodium was burned. The observed dark red colour fits the emission spectrum of…

Description Have you experienced heartburn? Do you like cooking and baking? Have you encountered stubborn stains? If you answered yes to any of these, then sodium bicarbonate is your friend. In this lesson, we will discuss sodium bicarbonate and its many uses. !!!What is Sodium Bicarbonate? Sodium bicarbonate, commonly known as ‘’baking soda’’, is a staple in the kitchen. It is a must-have ingredient if you love baking cookies and other sweets. It is also very useful in deodorizing your…

We ran MgCl2 through various tests to see if its properties match our UWC. the first test was to compare the solubility of UWC and MgCl2. We added 1mL of distilled water to two different beakers each and gradually added 1g of MgCl2 and 1g of our UWC to each beaker. Approximately after 15 minutes, both solids dissolved in the water and MgCl2 passed this test. The second experiment was the halide test to determine if there are any Cl- ions in both solutions. We added 1 mL of 6M HNO3 and 1mL of…

Procedure: To begin this experiment all of the equipment was collected. The materials used in this experiment were a small plastic weighing dish, oxalic acid, a 250 mL Erlenmeyer flask, distilled water, a buret, NaOH solution, a 150 mL beaker, funnel, and phenolphthalein indicator. Before the experiment began the buret was cleaned with distilled water, a buret brush, and dish soap. The buret was completely washed out in order to not cause any faults in the results of the experiment. Once the…

The Effect of pH Level on the Amount of Brine Shrimp Hatched By: Maggie Lazaroski and Paloma Diaz Period 1, January 8 2014 Introduction Paragraph In this experiment, we will be using brine shrimp to measure the effects of pH on the survival rate of invertebrate creatures. We will use white vinegar and baking soda to alter the level of pH, the white vinegar to make the pH level higher and the baking soda to make the pH lower. We will be feeding the shrimp yeast, which is completely…

Given an unknown compound in container 3, solubility tests, cation tests, anion tests, and conductivity tests can be used to determine the various properties of the unknown to then make a positive identification of the unknown. These results will not only show chemical and physical properties but also what the unknown compound might react with to form other compounds. After performing the four anion tests, a positive identification was able to be made showing that the unknown compound contained…

In this experiment, the goal was to figure out which solute would be the best at neutralizing stomach acid the quickest. As baking soda was added to stomach acid, then the time for neutralization was the quickest. From the data chart, baking soda had the largest average pH of 6.6. On the graph, it show how baking soda had the highest peak and how it was the closest to reach 7 than any other substance. The hypothesis is supported because baking soda was the antacid that was closest to…

The number of moles of hydrochloric acid neutralizes for the three trials (2,4,5) were calculated using stoichiometry. It was calculated for trial 2 by convert 4.88 mL NaOH to L by divide by 1000 mL. Then, to get to mol of NaOH the molarity of NaOH was multiplied by 0.00488. Then to get from NaOH to HCl, the mole ratio 2 HCl to 1 mol NaOH was multiplied by 0.00122. To get the amount of HCl per beaker, 100 mL of HCl was divided by 1000 mL to get 0.1 L. Then, the liters were converted to moles by…

Each test yielded its own unique set of observations, calculations and results. In order to determine these various values through calculation, the experimental data as well as the chemical reaction of calcium hydroxide was used for all calculations. The chemical equation is displayed below: The first experiment determined the molarity of OH- and Ca2+, the Ksp and the ΔG for saturated calcium hydroxide at 21°C. In order to determine these values, the experimental data as well as the chemical…