regulations because of the pollution it was causing. Hart and Nelson debated to reinforce citizen’s rights in order to sue the EPA over bad enforcement of the proposed law. However‚ Poage was more concerned over the industries that will be affected by limiting pesticides. Poage called for indemnification for manufacturers whose pesticides are legally removed from the market. Hart and Allen were largely against giving
Premium United States United States Congress Environmentalism
Stoichiometry of a Precipitation Reaction March 20‚2013 Amber McCollum Introduction Stoichiometry is a branch of chemistry that deals with the quantitative relationships that exist among the reactants and products in chemical reactions To predict the amount of product produced in a precipitation reaction using stoichiometry‚ accurately measure the reactants and products of the reaction‚ determine the actual yield vs. the theoretical yield and to calculate the percent yield. The equation
Premium Stoichiometry Sodium Sodium chloride
There are times of the year when students begin to be exhausted‚ and it is because of all the homework they have to do. As they sit down and pull out their piles of homework‚ it rises to the ceiling. Moreover‚ incalculable of kids go to bed extremely late at night because of it. Teachers should limit the amount of homework they give out. Too much homework has negatively affected kids‚ especially when it causes a tremendous deal of stress‚ too much time is required to complete it‚ and it impacts
Premium High school Education Sleep deprivation
CHEM 14 Problem Set 2 Deadline of submission: MHE2 – Feb 7; TFC – Feb 8 SOLVE ALL PROBLEMS. SHOW YOUR SOLUTIONS CLEARLY. 1. Arginine is a semi-essential amino acid that is used to form nitric oxide which in turn plays an important role in the nervous as well as cardiovascular system. It contains C‚ H‚ N and O. Combustion of a 0.75 g pure sample which contains 2.591 x 1021 molecules of the amino acid produced 0.03015 mols of water and 578.59 mL of CO2 at STP. The same sample contains 5.181
Free Oxygen Nitrogen
The first days in the lab will be used to practice with collecting bare footprints from different individuals using the bare footprint reagent cream. To get access to the lab‚ a Practical Risk Assessment must be made (see appendix I)‚ and three Health & Safety courses must be completed (see appendix II). After practicing with collecting bare footprints‚ the study starts with collecting footprints from six specific participants‚ whose footprints have already been collected by two other investigators
Premium Water Scientific method Management
Homework has become part of the school life of the students. Homework is a schoolwork that the student is required to do at home‚ this is what help to the students to practice what they had learned in class‚ but now we wonder if homework is a real contribution in the learning of the students. All students have homework for school and mostly of them are having a great amount of homework which leads to the student to not having time for extracurricular activities such an academic activities or sports
Premium Education Homework help service High school
Ch. 1 Fundamentals of Chemistry Subchapter – Stoichiometry and Units 1. An element X forms an oxide with the formula X4O10. If 31 g of X combines with 40 g of oxygen‚ what is the identity of X? A. N B. P C. C D. S Correct Answer: B: P Explanation: We can solve for the atomic mass of X to identify it. The amount in g of X for any amount in g of O is given by: Rearranging the above equation and substituting the given mass of X and O‚ we get: Thus‚ the atomic mass of X
Premium Oxygen Oxygen Oxide
Show the calculation of the percent yield. = Actual yield/Theoretical yield x 100 = 0.5/0.68 x 100 = 73.5% Conclusion: The objective of the experiment is to predict the amount of product produced in a precipitation reaction using stoichiometry. Secondly‚ the experiment accurately measures the reactants and products of a reaction. Also‚ the experiment is to determine actual yield vs. theoretical yield and to calculate the percent yield. For example in this experiment‚ we were able to
Premium Stoichiometry Solubility Calcium carbonate
Ferric Chloride TS —Dissolve 9 g of ferric chloride in water to make 100 mL. Thioacetamide TS —Dissolve 4 g of thioacetamide in 100 mL of water. Thioacetamide–Glycerin Base TS —Mix 0.2 mL of thioacetamide TS and 1 mL of glycerin base TS‚ and heat in a boiling water bath for 20 seconds. Use the mixture immediately. Lead Nitrate Stock Solution— Dissolve 159.8 mg of lead nitrate in 100 mL of water to which has been added 1 mL of nitric acid‚ then dilute with water to 1000 mL. Prepare and store
Premium Sulfuric acid Hydrochloric acid Ammonia
Observing a Limiting Reactant An experiment was carried out to predict the limiting reactant in a chemical reaction between Magnesium and Hydrochloric acid‚ using the mole concept. Limiting Reactant: It is the reactant that will deplete or will be used up first during a chemical reaction. Limiting reactant also determine how long the reaction will last for. Balanced Equation: Mg + 2HCl = MgCl2 + H2 The balanced equation is needed to determine the mole ratio between the two reactants. From
Premium Chemical reaction Chlorine Magnesium