the oxygen gas created into a container thus showing the extent of the reaction and this will show the rate in which oxygen is created and how the rate will change when we use different initial concentrations. We do use a catalyst in this reaction to speed up the process and lower the activation energy needed to run the reaction. The catalyst is the Iodide ion that will be used in the form of potassium iodide (KI). Results at the end of the trails will be used to compose a rate of law for the reactions
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The purpose of this lab was to determine if a there is a change in mass when a gas is produced and determine if gas has mass. To conduct this experiment‚ the group must be careful not to let the Alka-Seltzer tablet get wet before the bottle is closed by wiping the lip of the bottle and the cap so it remains dry‚ or risk gas escaping into the air and not being captured by the bottle. Also‚ the group must be sure to close the bottle tightly with the cap‚ because gas may escape this way as well. During
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ATENEO CENTRAL BAR OPERATIONS 2007 Criminal Law SUMMER REVIEWER BOOK I CRIMINAL LAW – A branch of municipal law which defines crimes‚ treats of their nature and provides for their punishment. Characteristics of Criminal Law: 1. General – binding on all persons who reside or sojourn in the Philippines Exceptions: a. Treaty Stipulation b. Laws of Preferential Application c. Principles of Public International Law Ex: i. sovereigns and other chiefs of state ii. Ambassadors‚ ministers plenipotentiary
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hydrogen gas (H2) (converted to the molar volume at STP) and then‚ to compare obtained results with the molar volume of an ideal gas. To determine the measured molar volume of hydrogen gas‚ we are going to use this equation: The molar volume of the ideal gas will be determined by the equation ‚ where T = 237 K‚ P = 101.3 kPa. The hydrogen gas will be collected as a product of chemical reaction where Magnesium reacts with hydrochloric acid and produces magnesium chloride with hydrogen gas. Mg(s)
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Introduction The purpose of this lab is to determine the percent mass of Cu in a penny and see if the fabricator that makes the planchets for the government is using the correct amounts of Cu in the pennies. The composition of a standard penny is 97.5% Zn and 2.5% Cu. In the lab we will be using Beer’s Law (A=elc+b where A is solution absorbance‚ e is a constant called molar absorbency‚ l is the length in cm‚ and c is the concentration). Using Beer’s Law in this lab a colorimeter is used to find the
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AP BIOLOGY Lab 5 Cellular Respiration Objective: To calculate the rate of CR from the data. To then relate gas production to respiration rate. Then test the rate of CR in germinating versus non-germinating seeds in a controlled experiment and then test the effect of temperature on the rate of CR in the germinating versus non-germinated seeds in a controlled experiment. Analysis: 1. The CR is higher in the germinating peas in the cold water rather than in the beads or non-germinating peas
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Biology 20 IB Design Lab Does increasing or decreasing the ph level of a 3% concentration H2O2 (l) solution affect the amount of oxygen released between 15.0ml of the solution and a 5g sample of liver? The reaction is measured by the difference in mass of a balloon that is used to capture the amount of gas released by the catalase enzyme found in liver reacting with a basified 3% H2O2 (l) and an acidified 3% H2O2 (l) . Chemical reactions occur when two or more molecules interact and the molecules
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Why we have laws- The law is a legal set of rules that the government and courts have made for everyone to follow. Without laws‚ confusion and chaos would occur. In extreme cases of conflict‚ a state of anarchy would develop. The person with the most strength will start to dominate and the weak and helpless would suffer. However‚ when laws are enforced‚ a sense of order is created resulting in a society where everyone can live peacefully. Why laws change-? Societies’ perceptions have changed over
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October 1‚ 2013 Chemical Reactions of Copper Objective The objective of this lab is to convert copper (Cu0) “in a series of reactions to various compound containing copper as the Cu2+ species” (CHM111 Laboratory Manual) in order to prove the Law of the Conservation of Mass. Introduction In this experiment‚ we took a look at how copper (Cu0) reacts with different substances to get an end result where it is transformed back to its original state. There were five different reactions that involved
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Organic Farmers Struggle to Protect Land from Encroaching Fracking Industry Through this analysis I will show how EcoWatch‚ paired their article with a great documentary on this issue called “Gas Rush Stories”‚ speaking with not only for organic farmers but the customers who buy the products from these farms. Their credibility is demonstrated through their partnerships with larger green energy and environmental organizations‚ and enhances the articles validity by taking it to those directly affected
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