making the reaction of the magnesium more effective. Sources of error in this experiment:•The dilution process of the hydrochloric acid is very crude. This means that the reaction rate will be affected‚ but not by a lot. •The size of the magnesium wire is not equal. This will also affect the consistency of the results‚ but again‚ not by a lot. •The recording of the time may not be absolutely accurate. The experiment could be improved by reducing the sources of error i.e. handling the equipment
Free Affect Effect Hydrogen
Chemistry Gen: Course Description Year 2 PART - II CGT 21a Unit I. Basic physical chemistry I * Gaseous state: Gas laws‚ kinetic theory of gas‚ collision and gas pressure derivation of gas laws from kinetic theory‚ average kinetic energy of translation. Boltzmann constant and absolute scale of temperature‚ Maxwell’s distribution law of molecular speeds (without derivation)‚ most probable‚ average and root mean square speed of gas molecules‚ principle of equipartition of energy (without
Premium Thermodynamics Entropy Temperature
Properties of Gases General Chemistry 1 Lab 5 Abstract: The purpose of this experiment is to examine the properties of several gasses‚ which were the products of a reaction‚ and examine the way the gasses react under certain conditions. These conditions‚ such as introducing a flame to the gas as well as oxygen and CO2‚ caused other reactions to occur. Hypothesis: If the gasses are correctly synthesized then there will be a clear reaction with the introduction of the flame‚ O2‚ CO2‚ Air
Premium Oxygen Gas Carbon dioxide
This may be either bacteriocidal or bacteriostatic. Their uses include cleansing of skin and wound surfaces after injury‚ preparation of skin surfaces prior to injections or surgical procedures‚ and routine disinfection of the oral cavity. In this experiment‚ filter paper disc method or known as zone of inhibition method is be used. It is satisfactory method employed to evaluate the effectiveness of antiseptic agents against selected test organism. In this method‚ sterile filter paper disk is impregnated
Premium Antiseptic Bacteria Microbiology
Milgram Experiment If people decided to just disobey and stop taking orders from authority figures‚ then imagine what kind of world we’d be in. If a cop were to turn his lights on you are gonna pull over because you know that is the right thing to do. Obedience is key for these type of issues. Just like when parents tell their children to do chores‚ they are gonna take that command and do what they are told. Why do we do that? That’s what we are trying to find out with the Milgram Experiment. Some
Premium
Chemistry Internal Assessment: Determining the Enthalpy Change of a Displacement Reaction AIM: To determine the enthalpy change for the reaction between copper(II) sulfate and zinc. BACKGROUND THEORY: Bond breaking is endothermic while bond forming is exothermic. The reaction between copper(ll) sulfate and zinc is exothermic as the energy required to form the bonds of the products is greater than the energy required to break the bonds of the reactants. In an exothermic reaction‚ heat is
Premium Thermodynamics
Laboratory Apparatus Beakers are useful as a reaction container or to hold liquid or solid samples. They are also used to catch liquids from titrations and filtrates from filtering operations. Bunsen burners are sources of heat. Burets are for addition of a precise volume of liquid. The volume of liquid added can be determined to the nearest 0.01 mL with practice. Clay triangles are placed on a ring attached to a ring stand as a support for a funnel‚ crucible‚ or evaporating dish.
Premium Laboratory glassware Laboratory equipment
Ruth Alozie Chemistry Take home test May 4‚ 2013 In a laboratory experiment‚ a student reacted 2.8 grams of Fe (s) (steel wool) in excess CuSO4 (aq)‚ according to the following balanced equation: Fe(s) + CuSO4 (aq) -> FeSO4 + Cu(S). When the Fe(s) was completely consumed‚ the precipitated Cu had a mass of 3.2 grams. Did the student’s result on this experiment verify the mole ratio of Fe(s)
Free Science Scientific method Experiment
* can be observed (via change in color‚ smell‚ or (from the release of energy) in the form of bubbles or a change in light; * ------------------------------------------------- is irreversible (because a new substance was formed). QUIZ ANSWERS What is the term for the abbreviation for the name of a chemical compound that indicates the number of atoms of each element? c. chemical formula What is the term for matter having an indefinite composition and variable properties?
Premium Chemical element Chemical substance Chemical compound
9-800-160 REV: JANUARY 22‚ 2003 WILLIAM E. FULMER Buckman Laboratories (A) If you can’t maximize the power of the individual‚ you haven’t done anything. If you expand the ability of individual members of the organization‚ you expand the ability of the organization. — Bob Buckman‚ CEO and Chairman of Buckman Laboratories A major Buckman customer in Australia announced plans to commission a new alkaline fine paper machine in 1998. Not only was it always attractive to get “start-up” business
Premium Knowledge management Sales