Folic acid

This paper describes the process by which a three-component mixture was separated and identified. The mixture was separated with the aid of a separatory funnel and various solvents acids and bases. The compound was found to be comprised of meta-nitroaniline, naphthalene, and benzoic acid / 2-napthol. All three of them are organic compounds with melting points in the order they were listed 111-114, 79-82 and 121-122/121-123 °C. the percent yield of each component was also calculated at the end…

The experiment that I will be conducting focuses on how fast one tablet of Alka seltzer can dissolve in various temperatures of water. The core of this procedure is to determine the impact that temperature has on how fast something dissolves. My hypothesis for this experiment would be that the Alka Seltzer that dissolves the fastest would be the one that was placed in the water with the highest temperature. There will be controlled and manipulated variables explained throughout the experiment.…

3.2. Chemical quality parameters and pH value:- 3.2.1. Chemical quality properties, pH values and total plate count (TPC):- Total volatile basic -nitrogen (TVB-N), the peroxide value (PV), pH and total plate count (TPC) are good index to determine the freshness and quality of fishes and their products. Data presented in Table (4) show the values of TVB-N, PV,…

3.1: Ligand preparation: A series of benzimidazole derivatives were used to prepare the ligand dataset using benzimidazole as the query molecule. All the inhibitors selected comply with the Lipinski rule of five. A total of 50 molecules were taken up for the study. 3.2 Virtual screening: To further screen the compounds, additional similarity metrics were calculated by ROCS. ROCS is a shape based superposition method used to perceive similarity between molecules based on their three dimensional…

and [HI] will decrease. 4. 20 grams of magnesium were placed in a conical flask. Which one of the following solutions, if added, would produce 100 mL of hydrogen gas the fastest? A. 100 mL of 4 M sulfuric acid B. 200 mL of 2 M sulfuric acid C. 400 mL of 1 M sulfuric acid D. 50 mL of 8 M sulfuric acid 5. Why does the rate of reaction increase when powdered calcium carbonate is used instead of marble chips? A. The powdered calcium carbonate acts as a catalyst. B. There is an increase of the…

The substances found on the victims of the crash can be easily identified through simple math. You start by taking the percent values of each element found in the substance and changing it to grams, where one percent equals one gram, so that each element is out of one hundred grams. After finding the grams, you find out the moles of each element by multiplying the gram amounts by the conversion factor, which is 1 mol over the molar mass of the element you are dealing with, 12.01 grams for carbon…

THEORY An acid is a proton (H+) donor A base is a proton (H+) acceptor EXPLANATION OF THE THEORY: Acids are proton donors and bases are proton acceptors. A hydrogen ion is the same thing as a proton since hydrogen consists of a proton and an electron. When hydrogen loses an electron all that is left is a proton. According to the Brønsted-Lowry theory of acids and bases, when an acid and a base react, a conjugate base and a conjugate acid will be produced. EXP: acid + base à conjugate acid+…

Truth: yes, thick moisturizer is good but a moisturizer must have lactic acid or emollient type properties. You can also use gel based moisturizers as skin can absorb these gel must faster than the normal creamy moisturizer. Baiden Mitten: Myth: Baiden mitten cannot help in dry skin and it is just a normal cosmetic product.…

consists of constant changes between water (H2O) and carbon dioxide (CO2) to form carbonic acid (H2CO3) and, if needed, it will break the weak acid and from bicarbonate (HCO3-) and very little hydrogen ions (H+). This equilibrium allows for the equation to vary back and forth maintaining a constant pH value within the species. For instance, when hydrogen is missing, more water and carbon dioxide will form carbonic acid and will therefore dissociate replacing the missing hydrogen ions and…

Cool Mints When eating a mint a cool sensation bursts through one's mouth, but is that mint really making their mouth cold, or is it just their mind playing tricks on them? This science fair project is questioning whether or not mints really make one's mouth cold. To test this the theory, the project will include a glass of lukewarm with mints added in every few minutes. How will adding mints in a glass of room temperature water affect the temperature of water? Why does it feel like mints cool…