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Logarithms Tutorial for Chemistry Students. 1 Logarithms. 1.1 What is a logarithm? Logarithms are the mathematical function that is used to represent the number (y) to which a base integer (a) is raised in order to get the number x: x = ay; where y = loga(x). Most of you are familiar with the standard base-10 logarithm: y = log10(x); where x = 10y.
19 sie 2024 · Revision notes on Word & Chemical Equations for the Edexcel IGCSE Chemistry syllabus, written by the Chemistry experts at Save My Exams.
By definition, a molar mass is the mass of 1 mol of a substance (i.e., g/mol). The molar mass of an element is the mass number for the element that we find on the periodic table. The formula weight (in amu’s) will be the same number as the molar mass (in g/mol).
Beautiful Mathematical Notation in Word Documents. Introduction. That’s a long title. Basically, this document is a quick crash course in how to use the word equation editor and some of the shortcuts to write the symbols for the class efficiently in word documents.
In chemistry, the vapor pressure (P) of a liquid at Kelvin temperature T can be determined from the following equation: P(T)=e!!Ho RT +!So R " # $ % & ' where ∆H° (the heat of vaporization), ∆S° (the entropy of vaporization), and R (the gas constant) are all constants. 3. Use the properties of logs to derive an expression for ln(P). ln(P ...
Chemical equation: A symbolic representation of a chemical reaction using chemical formulae. [e.g. When gaseous dihydrogen, H2, and dioxygen, O2, are mixed at room temperature nothing happens, but when the mixture is sparked a large amount of heat is given out and water is formed.
log 10 ([H +] /c −) so [H +]=10 − pH c − where [H +]= hydrogen ion concentration in mol dm − 3 and c − =1 moldm − 3. Equivalently, pH= − log 10 a H 3 O + where a H 3 O + = hydroniumionactivity. LawsofLogarithms: foranypositivebase b,with b =1, log b A +log b B =log b AB, log b A − log b B =log b A B, n log b A =log b A n, log b ...
