Log and antilog
[DOC File]A LOGARITHM is an exponent
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Since pH = -log [H+], we can take the antilog of both sides to yield 10-pH = [H+]. This can be represented mathematically as: [H+] = 10-pH or [H+] = antilog (-pH) To solve: Enter [-pH], then take the antilog. Sample Problem 6: Find the hydrogen ion concentration in a solution whose pH = 7.35. Solution: Take the antilogs of both sides of the ...
[DOC File]6 - University of Galați
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După modul cum efectuează operaţiile de multiplicare/divizare, multiplicatoarele clasice pot fi cu transconductanţă variabilă sau de tip log-antilog. Indiferent de tip, principalii parametri ai unui multiplicator sunt: tensiunile nominale Uxn, Uyn şi U0n, precizia …
[DOC File]A Bridge Course to Prepare Students for a Biotechnology ...
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Title: A Bridge Course to Prepare Students for a Biotechnology Program Author: Mary Parker Last modified by: Mary Parker Created Date: 1/3/2007 7:31:00 PM
[DOC File]DMR Calculations
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3. Take the antilog of the result of step 2. This will again be the geometric mean. To do this on the calculator, key the data value and press the "log" key. Then press "+" and repeat for all values. After the last logarithm is entered, press "=" to get the sum. Divide by the number of values that were added.
[DOC File]Indicators
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Ka = antilog (-pKa) = antilog (-11.05) = 9 x 10-12 (1 SF because pH’s on Indicator Table are only to 1 decimal place.) This is because Thymol Blue is a diprotic acid. Each time it loses a proton, it goes through a color change. We can call Thymol Blue (Tb) a weak acid H2Tb. The equilibrium equation for …
[DOC File]Ionization of Water
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or taking antilog of difference in pH 7 – 3 = 4. antilog 4 = 104 = 10,000 times (remember lower pH more acidic) Natural rainwater pH ~ 6 . Extremely acidic acid rain pH ~ 3 diff = 3 & antilog (3) = 103 (1,000) So, the acid rain is 1000 times more acidic than natural rain water! pOH. pOH = -log [OH-] And [OH-] = antilog …
[DOC File]Section 1
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Section 4.1: Maximum and Minimum Values. SOLs: APC.12: The student will apply the derivative to solve problems, including tangent and normal lines to a curve, curve sketching, velocity, acceleration, related rates of change, Newton's method, differentials and linear approximations, and optimization problems.
[DOC File]Honors Chemistry - Council Rock School District
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Press the (-) key, the log key, enter the [H3O+1], and press the enter key. Fill in the following table: [H3O+1] pH Acid or Base 1 x10 –1 1 x 10 –9 3.00 x 10 –4 Page 2. To convert pH to [H3O+1]: Formula: [H3O+1] = Antilog -pH . Calculator: Press the 2nd key, the log key, the (-) key, enter the pH, and press the enter key. Fill in the ...
[DOC File]Predicting Y with a Natural Log Functional Form
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A more general procedure, which works whether or not the errors are normally distributed, is the following: first compute the antilog of the predicted log of the dependent variable for each observation—call this Exp(Predicted Ln y).
[DOC File]Cost as the Dependent Variable (Part 1)
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But if we’re going to use the log dependent variable we just can’t simply take the antilog of that linear combination. We have to make some correction for retransformation bias. And one way to do this is the smearing estimator, the mean antilog of residuals.
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