ELECTROLOYSIS OF WATER: DETERMINATION OF THE FUNDAMENTAL ELECTRONIC CHARGE PURPOSE: The fundamental electronic charge of water will be determined. A system of collecting the formation of H2 and O2 using two inverted glass collections tubes and a 1-L beaker filled with water will be setup. An electrolyte (H2SO4) will be added to water to make it an electrical conductor. A small amount of electricity will be applied to the water (roughly 400 mA) to oxidize the oxygen and reduce the hydrogen
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Alana Rogers Date of experiment:11-20-13 Date submitted: 11-23-13 Determination of Water Hardness Using a Titrator Purpose: This purpose of this experiment was to determine the hardness of the local water supply. Be familiar with using a titrator. To tell wether your water is hard or soft. Hard water however does not create a threat‚ but is bad for your pipes causing them to crust. To measure water’s “softness” you are truly measuring the amount of CaCO3 in the water. Procedure: Assemble
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Experiment IV Solubility of Dissolved Oxygen Purpose To demonstrate the effect of partial pressure‚ temperature and salinity on the solubility of dissolved oxygen and to demonstrate the interference of nitrite in dissolved oxygen analysis by the Winkler Method. To demonstrate the use of the oxygen electrode and the difference between activity and concentration. References 1. Mancy‚ K. H.‚ Jaffe‚ T.‚ "Analysis of Dissolved Oxygen in Natural and Waste Water‚" USDHEW Public Health Service
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Determination of nitrite and phosphate Mech-1103 assignment 2 C.SUNGKUR 10/20/2016 STUDENT ID: 1615715 Faculty of engineering Title: Determination of concentration for unknown solutions of nitrite and phosphate. Author: C. SUNGKUR Student id: 1615715 Date of submission: 20/10/2016 Submitted to: Mr. Y.SEECHURN ABSTRACT When primary aromatic amine and nitrous acid react together‚ it results in a diazonium compound and this process is called diazotization
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Accred Qual Assur (2005) 10:172–176 DOI 10.1007/s00769-005-0914-6 PRACTITIONER’S REPORT V. Kmecl J. SuÐin ˇˇ L. Zupancic-Kralj Validation of analytical methods used for determination of nitrate in soil Received: 7 April 2004 Accepted: 3 November 2004 Published online: 24 March 2005 Springer-Verlag 2005 V. Kmecl ()) · J. SuÐin Agricultural Institute of Slovenia‚ Hacquetova 17‚ 1000 Ljubljana‚ Slovenia e-mail: veronika.kmecl@kis.si Tel.: +386-1-2805164 Fax: +386-1-2805255 ˇˇ L. Zupancic-Kralj
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Determination of the Solubility Product Constant of Calcium Hydroxide Introduction The equilibrium constant for the solubility equilibrium between an ionic solid and its ions is called solubility constant [1] ‚ Ksp of the solute. For example‚ the solubility product is defined by MxAy(s) ⇋xM(aq)y++ yA(aq)x- (1) Where M is the metal cation‚ A is the anion‚ x and y are the corresponding charges of the ions. The equilibrium expression is Ksp=[MY+]x[AX-]Y (2)
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Gravimetric determination of sulphate in fertiliser Question: The proportion of sulphate present in a brand of commercial fertiliser under a range of temperatures. Fertilisers provide plants with a number of sources necessary for them to grow‚ as follows‚ nitrogen‚ phosphorus‚ potassium and finally the one I will be concentrating on Sulfur. To cater for the varying plants‚ you wouldn’t require all these elements to the same extent as the necessities for each plant differ. The composition of different
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Two human growth and development theories that are supported by research are Bandura’s Social-Cognitive Learning Theory and Piaget’s Theory of Cognitive Development. The Social-Cognitive Learning Theory asserts that learning comes from watching the behaviors of others. When a behavior is perceived to be rewarding‚ children imitate said behavior (Feldman‚ 2014). An example of this is children who observe others laughing in delight while playing with a certain toy. The children who observe this will
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Thermochemistry: An Ice Calorimeter Determination of Reaction Enthalpy Curtis M. Franklin Thursday‚ February 14‚ 2013 ABSTRACT An ice calorimetric measurement was used to determine that a reaction involving solid magnesium metal and 1.00M sulfuric acid produces an experimental a value of ∆H = -226 ± 28 kJ/mol at 0°C. This is about 48.4% lower than the expected value reported at 25°C. Introduction Many chemical reactions exhibit themselves by exchanging heat energy‚ either be absorbing
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was self-determination‚ the belief that all people have the right to choose their political destiny free from the interference of any external parties. Naturally‚ the announcement of self-determination was met with a wave of optimism amongst colonised nations like Vietnam‚ Poland‚ India‚ and Egypt. Yet this optimism was quickly stamped out by the Wilson administration’s inconsistent application of self-determination. As a result‚ this essay asserts that in Wilson’s mind‚ self-determination only applied
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