Amount of substance

If a compound is an electrolyte it conducts electricity by breaking down into ions when dissolved into a solution. A non-electrolyte compound does not dissociate in solution. A non-electrolyte compound cannot conduct electricity because it dissolves in solution as molecules instead of ions. Colligative properties are properties of a solution that depend on the amount of solute dissolved, and not dependent on the identity of the solute. The colligative properties studied in this current chapter of chemistry are: vapor pressure lowering, boiling point elevation, freezing point depression, and osmotic pressure. The van’t Hoff factor for a solute is equivalent to the number of particles, in moles, will break apart in the solvent. When an…

How will changing the amount of the acidic substance used to make curd change the curd mass? Purpose The purpose of this lab was to determine what mass of curd is produced with different amounts of the two acidic substances used. Background Research Milk curd, or coagulated milk solids, is the byproduct of the effects of acid and enzymes on milk protein and fat (Suliman, 2018). Milk is made up of numerous types of proteins. Two of those protein groups are caseins and whey. Caseins make up…

Introduction This accuracy lab of titration report experiment will discuss how to find the unknown substance molarity. By using some of the lab equipment to help guide and identify the molarity of the unknown substance. I believe that it will take around three hundred drops of sodium hydroxide (NaOH) for it to be able to reach to its endpoint of the unknown substance. My reason behind my hypothesis is… Methods In this lab experiment we use a buret to…

for the same reason. Molarity is the amount of molecules that a substance contains, for example, the amount of sodium ions in water after adding 2 grams of salt or the amount of sodium chloride molecules to in 10 grams of salt. The reason that we need to understand the molarity of a substance is to have a more controlled experiment. When the molarity of a substance is known, then a person knows how much of a substance if required to create a complete reaction in which all compounds that have to…

Barry, three criteria has been established as must be present to identify substance dependence according to the DSS-IV criteria. First, is tolerance. For example, tolerance is described as a need for increased amounts of a substance to achieve intoxication or the desired effect. If a drug is continually used at the same dose, then, there is a diminished effect, which requires an increased quantity to achieve the desired effect (Hunte & Barry, 2012). The second pattern of substance abuse is…

mass number) or to the average number allowing for the relative abundances of different isotopes Molar mass: a physical property defined as the mass of a given substance (chemical element or chemical compound) divided by the amount of substance Mole: the amount of a substance contained in 6.02 x 10²³ particles of that substance Percent composition: the percent by mass of each element present in a compound Empirical formula: a formula giving the proportions of the elements present in a compound…

challenged because of the many different forms energy can hold. There have been definitions derived which are more suitable to certain contexts. Thermal energy is a more specific energy explored in this investigation process. Thermal energy is one of the types of energy which can be defined by ‘the ability to perform work’. It is the sum of the kinetic and potential energy possessed by an object due to the movement of particles within the object or the system (Simmons, 2014). The thermal energy…

Introduction You have 5 white substances in 5 different containers. Your trying to make pancakes but you don't know what substance is what. You can’t tell the baking soda and flour from the boric acid, and the sugar from the salt. How will you determine which white powders are necessary to make pancakes? If then you can test all the white substances with different types of substances that would make them react. You cannot taste test the substances because there will be a possibility that you…

outcomes of substance abuse. The first one is physiological, generally females are smaller than men thus the same amount of any substance will have a greater effect. Substances are generally found in the water in the body rather than the fat, a female of the same weight as a male will have more body fat, less water, than the male therefore the substance will be more concentrated, and the effects will be greater. Once the substance is in the women’s body it will generally have the same affects…

matter. Energy is what can cause a change to matter. As energy cannot be created or destroyed, it gets stored or transferred. Kinetic energy is what a substance possesses due to it being in motion. The kinetic theory of matter states that matter is made up of small particles that are constantly in motion with spaces between them. (Andrew Rader Studios. Matter is the Stuff Around You. 1997-2015) There are 3 main phases of matter that are solids, liquids, and gases. The difference between the…