![]() ![]() Do not enter the state of compounds such as solids (s), liquids (l) or gases (g).Parentheses ( ), square brackets and braces (curly brackets) =Fe.H2O for a water molecule or (NH4)2SO4 for ammonium sulfate. Indices should be entered as normal numbers after the appropriate elements or groups, e.g.The formula of a substance should be entered using the upper case for the first character in the element’s name and the lower case for the second character (compare: Co – cobalt and CO – carbon monoxide).The substances are separated by a plus sign (+). Reactants and products in a chemical reaction are separated by an equal sign (=).The method is modified for finding integer coefficients. Our stoichiometry calculator uses the Gauss-Jordan elimination algorithm for solving a set of linear equations. But in case of complex reactions involving many compounds, it is preferable to balance equations using algebraic methods, based on solving a set of linear equations. There are a number of methods for balancing chemical equations. In case of ionic reactions, the same electric charge must be present on both sides of the equation. Thus, each side of the equation must represent the same quantity of atoms of any chemical element. It’s important because in a chemical reaction, the quantity of each element does not change (the law of conservation of mass). This means looking for stoichiometric coefficients for the reactants and products. So, the first step in stoichiometry calculations is balancing chemical equations. Knowing the molecular weight of the compounds involved in the reaction, it is easy to find the mass of these compounds in grams. For any balanced chemical equation, whole numbers (stoichiometric coefficients) are used to show the amounts (in moles) of both the reactants and products. Stoichiometry is the field of chemistry that studies the relative amounts of reactants and products in chemical reactions. You can enter either the required number of moles or weight in grams for one of the compounds in the corresponding field, and then press the ‘Enter’ key, to compute new values for the rest of the compounds. The reaction stoichiometry is calculated automatically for a balanced equation, with the number of moles for the compounds being the same as the stoichiometric coefficients. In what follows is a more detailed syntax guide to our calculator. ) or the asterisk (*) precedes the water formula (e.g.H₂O) are supported and automatically converted to normal form. H 2O) as well as denoted using the ‘tiny’ numbers, like ₂ or ₅, (e.g. Indices denoted using and html tags (e.g. You can enter a chemical equation manually or paste the equation copied from a web page or text document (including DOC or PDF file). In case the original equation was unbalanced, the field with this equation is highlighted in light pink. The equations may include free electrons and electrically charged molecules (ions) as well as hydrated compounds. ![]() Calculate log P properties for groups or libraries of compounds and use built-in tools to sort, filter, plot, and rank results.This online Stoichiometry Calculator finds the stoichiometric coefficients to balance a given chemical equation and computes amounts of the reactants and products of the reaction, both in moles and grams.Color highlighting of the molecule to highlight hydrophilic/hydrophobic substructures (GALAS).Click protocol entry to highlight the corresponding entity on the structure.The detailed calculation protocol lists all contributing functional groups, carbon atoms, and interactions through aliphatic, aromatic, and vinylic systems (Classic).Display of 5 most similar structures in the training library with experimental values and literature referencesĭisplay of 5 most similar structures in the training library with experimental values and literature references.All available experimental data and literature references provided for compounds in the internal training library.Results delivered with 95% confidence intervals for final log P value and incremental contributions.Estimates of prediction accuracy in the different models.Three prediction algorithms: Classic (default calculator), GALAS (Global,Adjusted Locally According to Similarity), and a Consensus log P based on the other two models.Predict log P from structure (draw in-app, or copy/paste from third-party drawing packages) SMILES string InChI code imported MOL, SK2, SKC, or CDX files or search by name in the built-in dictionary.Buy or Trial Select Software Browse Products ![]()
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