Sodium Chloride, is soluble in water, because it is polar and has an alternating negative anion and positive cation. Water is also polar, so like will dissolve in like. Therefore, the negative part of the chloride ions are attracted to the positive side of the water molecule and the negative side of the water molecules is attracted to the positive sodium atom. The negative oxygen charges in water, attract to the positive sodium ions in sodium chloride. Sucrose is soluble in water, because it is a polar molecule and the polar molecules in water attract the positive and negative regions around the sucrose molecules, which allows sucrose to be soluble in water. Therefore, sucrose is able to dissolve in water. However Paraffin wax, Silicon dioxide and Tin, were insoluble in water,because they do not have a charge for electrons to flow and carry electrons. Paraffin wax was insoluble in water, because Paraffin is a non-polar, water is a polar solvent, therefore they can not attract because like cannot dissolve like. Silicon dioxide was insoluble in water, because the vast network of covalent bonds is much stronger than the water-water interactions , therefore the water is not able to break down the molecule to form aqueous ions in water.This results in there being no possible attractions between water molecules with silicon and oxygen, leaving it as insoluble . Tin was insoluble in water, because it has metal bonds with strong intermolecular forces and water does not have the required force to remove these intermolecular attractions, resulting in Tin being insoluble in an aqueous
How does the temperature of water used to dissolve an Alka-Seltzer tablet affect the amount of time it would take for the tablet to completely dissolve?
It is required to have active ingredients be placed on the labels of a drug’s packaging and that the drugs could not fall below any of
Pharmaceutical representatives, show the physicians the newest drugs on the market, to drum up business for the pharmaceutical companies. The representatives leave samples of the products, In hopes that the doctor will strat prescribing their new name brand products for his patients instead of generic drugs.Also, in some cases, the patients are not financially able to purchase a new drug not knowing if it will help with their disease.The clinic 's management staff will determine whether they will be except the newest medication samples from the representative. If it is a useful product to the physician and their patients that the clinic serves.These pharmaceutical companies offer gifts and meals to the doctors.Such as free services to physicians, like building websites or providing free web pads with the name of the pharmaceutical products on them.
1. 150 ml of boiled water was poured into each of the three beakers labeled A, B, C.
McMurran, M., & Howard, R. C. (2008). Personality, personality disorder and risk of violence: An evidence-based approach. Hoboken, NJ: Wiley.
By April 2016, within the next six months the pharmacy department will cut the drug inventory budget by 25%. This in alignment with the Humble surgical request that every department need to cut its budget.
As a student in SDSU’s pharmacy program one of the activities required to prepare us for real world pharmacy practice is to perform a medication history. Performing a medication history and reviewing it can be helpful to in acquiring information about a patents disease states, keeping an up to date record on their current medications, and helps prevent and resolve potential and current issues with patents medications.
The solubility of a pure substance in a particular solvent is the quantity of that substance that will dissolve in a given amount of a solvent. Solubility varies with the temperature of the solvent. Thus, solubility must be expressed as quantity of solute per quantity of solvent at a specific temperature. For most ionic solids, especially salts, and water, solubility varies directly with the temperature. That is, the higher the temperature of the solvent (water), the more solute (salt) that will dissolve in it.
PORTERS FIVE FORCES ANALYSIS - PHARMA INDUSTRY Using Porter's Five Forces we can analyse the scope of the pharmaceutical industry. It looks into five factors namely, competitive rivalry, threat of new entrants, threat of substitute products, bargaining power of suppliers and bargaining power of customers. "
Introduction: In this lab, of water in a hydrate, or a substance whose crystalline structure is bound to water molecules by weak bonds, is determined by heating up a small sample of it. By heating, the water of hydration, or bound water, is removed, leaving only what is called an anhydrous compound. Based on the percent water in the hydrate, it can be classified as one of three types: BaCl2O ⋅ 2H20, with a percent water of about 14.57%, CuSO4 ⋅ 5H2O, which has about 36.0%, and CuCl2 ⋅5H20 (21.17%).
Abstract — This experiment was conducted to familiarize the students with the procedures regarding distillation—to be more precise, the separation of ethanol from an alcoholic beverage—using a distillation set-up consisting of boiling chips, a Bunsen burner, a condenser, a thermometer and several other materials. In the end, it was discovered that one may actually separate a homogeneous mixture, given that the components of said mixture differ in volatility and that they utilize a complete distillation set-up and follow laboratory safety rules and regulations.
The publications cover the general area/topic of pharmacy and what it is about and other information like the future of pharmacy, payment reform, and other medicines.
Two sources of error may have affected the experiment. Firstly, the experiment required volumes of liquid to be recorded while the vapours were distilling. It was impossible to accurately measure the volume of liquid at any given moment, as the meniscus was moving side to side. Secondly, the distillation was ended while there was still liquid in to round bottom flask. The composition and volume of this liquid were unaccounted for in the calculated
Solubility is a chemical property that is measured in terms of the maximum amount of solute dissolved in a solvent at equilibrium. The resulting solution is called saturated solution. For example when a sample of sodium chloride solution in water is heated the behavior of the reaction is endothermic obstructing exothermic behavior. Another relationship that can be said about solubility is that the solubility of a solid substance increases as the temperature increases. The solubility of solutes is dependent on temperature. When a solid dissolves in a liquid, it then changes its physical state (from solid to liquid) by melting. Heat is needed to break the bonds holding the molecules in the solid together and at the same time; heat is given off during the formation of new bonds between solute and solvent.