18.1.4 – 18.1.6 CALCULATIONS INVOLVING ACIDS AND BASES Review of Important formulas pH = ‐ log10[H+] [H+] = 10‐pH pKa = ‐ log10 Ka Ka = 10‐pKa pOH = ‐ log10[OH‐] [OH‐] = 10‐pOH pKb = ‐ log10 Kb Kb = 10‐pKb The ionic product of water = Kw = [H+] x [OH‐] = 1.0 x 10‐14 mol2 dm‐6 at 298 K The expression varies with temperature
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Experiment #7: Acids‚ Bases and Salts Mabag‚ Viannery D.‚ Mangune‚ Paolo D. Chem 14.1‚ MAB1‚ Ms. Angelyn del Rosario March 8‚ 2010 I. Abstract The experiment allowed students to explore different electrolytes and classify them into acids‚ bases and salts by using different indicators or by measuring the pH levels of each. The experiment also helped students classify different substances through their conductivity properties. The preparation of a 1 M stock solution from NaOH pellets diluted to a
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1. Emotional Awareness-- People with this competence: Know which emotions they are feeling and why Realize the links between their feelings and what they think and say Recognize how their feelings affect their performance Have a guiding awareness of their values and goals 2. Accurate Self-Assessment -- People with this competence: Are aware of their strengths and weaknesses Reflective‚ learning from experience Open to candid feedback‚ new perspectives‚ continuous learning‚ and
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towards improving the educational outcomes for disabled students‚ especially those eligible under “Emotional Disturbance” (ED). Statistical analysis of disabled students protected under the Individuals with Disabilities Education Act (IDEA)‚ demonstrate that most students at risk for EBD have significant academic deficits from the beginning of their school careers. Between 1961 and 2000‚ about 91% of studies examining the academic status of students with EBD found significant educational deficits
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Acids and Bases Shane Purpose- To study the relationship between pH and metabolism. 10/21/13 Materials- see attached Per. D Biology Procedure- see attached Data and Results- see attached Theory- PH stands for the power of hydrogen. People refer to the pH scale as a tool for finding out if a substance is acidic‚ basic‚ or neutral. This scale goes from zero to fourteen. The number seven is neutral. Any number higher than seven on this scale is basic. Any number lower is acidic
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MARKET SEGMENTATION Bases for Segmentation in Consumer Markets Consumer markets can be segmented on the following customer characteristics. * Geographic * Demographic * Psychographic * Behavioralistic 1. Geographic Segmentation The following are some examples of geographic variables often used in segmentation. Region: by continent‚ country‚ state‚ or even neighborhood Size of metropolitan area: segmented according to size of population Population density: often classified as urban‚
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assignment is poetry v. philosophy. Plato speaks of a quarrel b/t poetry and philosophy. He dismisses the arts while Aristotle defends them. DO we see traces of this quarrel in later traditions? If so‚ where? And how is it played out there? For this essay‚ in addition to Plato and Aristotle‚ focus on Dante’s Inferno. (Please look to see if my thesis is clear and strong‚ my evidence is all relevant‚ and whether this whole essay persuades you) Throughout his life‚ Plato strongly believed that the arts
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Five bases of power Social psychologists John R. P. French and Bertram Raven‚ in a now-classic study (1959)‚ developed a schema of sources of power by which to analyse how power plays work (or fail to work) in a specific relationship. According to French and Raven‚ power must be distinguished from influence in the following way: power is that state of affairs which holds in a given relationship‚ A-B‚ such that a given influence attempt by A over B makes A’s desired change in B more likely. Conceived
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ACID/BASE You might need to know the following K values: CH3COOH Ka = 1.8 x 10–5 Benzoic Acid Ka = 6.5 x 10–5 HNO2 Ka = 4.5 x 10–4 NH3 Kb = 1.8 x 10–5 HF Ka = 7.2 x 10–4 H2S Ka = 5.7 x 10–8 HSO4– Ka = 1.2 x 10–2 HS– Ka = 1.2 x 10–13 HCOOH Ka = 1.8 x 10–4 HOCl Ka = 3.0 x 10–8 SIMPLE ACIDS AND BASES 1. According to the Brønsted–Lowry definition‚ which species can function both as an acid and as a base? (A) Cl– (B) SO42– (C) NH4+ (D) HCO3– (E) H3O+ 2. Which of the following
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puts them to effective use. It is the ability to adapt to the surrounding environment‚ and to apply common sense to activities. More employers today base skills required to success on practical intelligence combined with grades obtained in academics. No longer is employment base solely on academic degree. Emotional Intelligence Emotional intelligence is the set of skills that underlie the accurate assessment‚ evaluation‚ expression‚ and regulation of emotions. It is the ability to get
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