292-307. Groeneveld‚ R.A. & Meeden‚ G. (1984). Measuring skewness and kurtosis. The Statistician‚ 33‚ 391-399. Hildebrand‚ D. K. (1986). Statistical thinking for behavioral scientists. Boston: Duxbury. Hopkins‚ K.D. & Weeks‚ D.L. (1990). Tests for normality and measures of skewness and kurtosis: Their place in research reporting. Educational and Psychological Measurement‚ 50‚ 717-729. Loether‚ H. L.‚ & McTavish‚ D. G. (1988). Descriptive and inferential statistics: An introduction ‚ 3rd ed. Boston:
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Molarity is the number of moles of solute per liter of solution. The unit of molarity is M and is read as molar. Molarity = moles of soluteliter of solution (Normality‚ 2012) Normality (N) is another way of expressing the concentration of a solution. It is based on an alternate chemical unit of mass called the equivalent weight. The normality of a solution is the concentration expressed as the number of equivalent weights (equivalents) of solute per liter of solution. The equivalent weight of a substance
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Experiment 4 SOLUTION STOICHIOMETRY ACID-BASE TITRATIONS Determination of the Percent Acetic Acid in Vinegar Objectives: (1) To introduce and use the concept of solution stoichiometry (2) To specifically use solution stoichiometry to determine the percent of acetic acid in vinegar. (3) To prepare a standard solution by the method of titration. Consider the following balanced chemical equations: (1) HCl + NaOH ------> NaCl + HOH (2) H2SO4
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Part C For 0.1N of NaOH : For 0.1N of HC1 : (1M) = 50ml of NaOH (1M) = 25ml of HC1 Part D First trial Second trial Third trial Initial volume‚ ml 0 11.3 21.8 Final volume‚ ml 11.3 21.8 33.4 Total volume of HC1 used‚ ml 11.3 10.5 11.6 Normality of HC1 = 0.0885
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that is 2.00 x 10^-3 M in NaCl and 5.4 x 10 ^-4 in HCl. Solution: pH = -log [H3o+] pH= -log[5.4 x 10 ^-4 ] = 3.27 pNa = -log [2.00 x 10^-3 ] pNa = 2.669 For pCl = -log[Cl NaCl] + -log[ClHCl] pCl = 2.595 Concentration of Solutions 2. Normality (N) is the ratio between the no. of moles of solute in one equivalent per liter of solution. • An equivalent is the ratio between Reacting units can be a: the molar mass of the substance •Base‚ Acid or salt and the Avogadro’s number of the
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St. John’s Senior Secondary School and Junior College Mandaveli Chennai – 600028 A CHEMISTRY PROJECT “STUDY OF THE OXALATE ION CONTENT IN GUAVA FRUIT” Submitted in the partial Fulfilment of the requirement for AISSCE 2010-2011 By Abdud Dayan Adeeb Of Class XII C St. John’s Senior Secondary School and Junior College Mandaveli Chennai – 600028 A CHEMISTRY PROJECT “STUDY OF THE OXALATE ION CONTENT IN GUAVA FRUIT” Submitted in the partial Fulfilment of the requirement for AISSCE 2010-2011
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defining straightness as normality‚ was interesting because before this my understanding of the word straight was that it meant heterosexual. However‚ after giving the word and meaning more thought‚ the definition of normality seems to fit the word well. When the word straight is used‚ more than signifying that someone is heterosexual‚ it seems to signify that the person is normal. With the meaning of normal signifying what is usually common or right‚ by allowing normality‚ it’s inevitably allowing
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GUIRU NANAK PUBLIC SCHOOL SECTOR-21‚ NAYA BAZAR ROURKELA Dist. SUNDERGARH CHEMISTRY INVESTIGATORY PROJECT SESSION 2013-14 BY : SHRISHTI VISWAKARMA CLASS : XII-A ROLL No : 28 GUIDED BY : Mr.NEERAJ PANDEY & Mrs.YOGITA CHANDAK Certificate This is to certify that miss SHRISHTI VISWAKARMA student of Guru Nanak Public School‚ Sector-21‚ Rourkela class XII-B ROLL No 26. In the Session 2013-14 has completed the chemistry
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titrated thrice to give clear Mn2+ with an analyte of acidified FeSO4 until all the Fe2+ in the solution was oxidized to Fe3+. The color of the MnO4-/Mn2+ was used as the indicator for the titration. A balanced oxidation-reduction‚ the molarity/normality of the standards potassium permanganate‚ and the volume of potassium permanganate used allowed the determination of the concentration of the FeSO4. Equipment and Chemicals: Chemicals: * Iron (II) ammonium sulfate solution‚ Fe(NH4)2∙6H2O‚ 0.100
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Within medical philosophy‚ there is debate over whether the notion of disease involves a value judgement or if it is strictly based on medical judgement. On one side‚ normativsts believe that all judgements about health and disease require a value judgement. This means that we think of unhealthy conditions as “bad” and healthy conditions as “good”. In addition‚ normativism is the belief that values of the patient and society are considered when determining if the patient has a disease. Normativists
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