One advantage of my proposed procedure about how to separate the sand from the benzoid acid was a strainer which could have stopped sand particles from entering the benzoic acid or to catch any benzoic solid acid crystals from mixing in with the sand. Since the benzoic acid lifted into the top when I boiled the water, it allowed me to pour it right into the paper cup. Also the benzoic acid was popping a lot along the bottom of the beaker during the heating process so I was able to identify the benzoic acid right away. C. Defiantly benzoic acid crystals could have been left behind during the separation process. I noticed some larger crystals of solid benzoic acid rocks left behind
Because baking soda is a natural compound, using it in these products can replace potentially environmentally harmful products. Out of several methods to produce baking soda, the Athenium Baking Soda Company has chosen the method of reacting brine with ammonium hydrogen carbonate to form baking soda: NH4HCO3(s) + NaCl(aq) => NaHCO3(aq) + NH4Cl(aq) Brine is defined as water containing a higher concentration of sodium chloride than typical seawater, along with the possible impurities potassium chloride (KCl), lithium chloride (LiCl), and calcium chloride (CaCl2) (brinechem). After NaHCO3 is dried and filtered, it may contain contaminants (KCl, LiCl, CaCl2) in the residue. To ensure the standards of the products are kept high, many baking soda manufacturing companies employ technicians and scientists to analyze and approve the products. This analysis is commonly referred to as quality control and includes periodic inspections designed to ensure the company’s products are meeting the set standards such as being uncontaminated, not losing quality during the manufacturing process, and not containing chemical structure or composition imperfections.
Osmosis/Egg Lab By: Nicole Dressen Problem to Solve: How the mass of an egg changes in different substances. Information Collected: A. Hypotonic: a substance with lower concentration when compared to another substance. B. Isotonic: when the concentration of two substances is the same. C. Hypertonic: a substance with more concentration when compared to another substance. Hypothesis: I think the mass of the egg that is in the water will stay the same but the mass of the egg that is in the sugar will increase mass.
Extraction of Spinach Lab Ruben Villalobos TA: Luis Oquendo Date work performed: February 6, 2013 Date work submitted: February 13, 2013 Abstract: The results found where only two of the components found in spinach were separated, they were chlorophyll and carotene. They were separated using a column filled with alumina this allows the separation of the different components of the spinach by polarity. Therefore the chlorophyll was more polar than the carotene. Chlorophyll’s Rf value was 0.32 and the carotene’s was 0.96. This was confirmed by the lab manual in page 30 which contains the list of the different Rf values by decreasing value.
The chains that are oriented within plastic have everything to do with their molecular properties. They can be made from materials such as oil, natural gas, and even organic materials such as corn or even a banana peel. Some plastics can be reshaped and molded into a new form when heat and pressure are applied because they have a weak chemical bond that connects their polymers together. My Opinions/Thoughts about the topic: Plastics have positive and negative benefits for the environment. Many of the products that are made from plastic contribute to many people’s lives.
In case of an emergency an outer shell will cover these entry ways. Oh, and did I mention that these doors can outlast a blast from a tank. The exterior is constructed of reinforced concrete and brilliant white Vermont marble. The Capitol building and the Oregon State library were connected by underground tunnels used for electricity and heating purposes. Polished rose travertine stone line the rotunda, lobby and halls on the first floor.
Isolation of Trimyristin from Nutmeg and Its Hydrolysis to Myristic Acid Compounds having complex molecular structures can be separated from natural materials. Usually they are components of very complex mixtures. To obtain pure compounds, long, tedious separation and purification procedures are often required. The triester, trimyristin, is however an exception and can be extracted from ground nutmeg seeds with tert-butyl methyl ether. Crystallization from acetone yields the pure compound.
Also we have been testing the effects of diffusion through a membrane. 2. Why did the egg shell disappear? The egg shell is made up of 94% calcium carbonate, 4% organic matter, 1% magnesium carbonate and 1% calcium phosphate. On the other hand cider vinegar which I used for this experiment is made up of 5% acid and 95% water.
One achievement of the tang dynasty was there wood block printing. Woodblock printing is a special way of printing text images or patterns. This was widely used through out East Asia. This was known as the first method of printing. The method of wood block is prepared as a relief matrix, by cutting the white areas with knifes, chisel or sandpaper.
The prototype of SCC for structural applications was first completed in 1988, it was called “high performance concrete”, later named as “self-compacting high performance concrete”. This prototype performed satisfactorily with regard to drying and hardening shrinkage, heat of hydration, denseness after hardening, and other properties. This concrete was defined