Dipotassium dioxidan ediide. No predicted properties have been calculated for this compound. For medical information relating to Covid, please consult the World Health Organisation or local healthcare provision. Simple Structure Advanced History. Comment on this record. K2O2 [Formula]. Potassium oxide. Potassium peroxide [Wiki]. Click to predict properties on the Chemicalize site. Search ChemSpider: Compounds with the same molecular formula Compounds with the same skeleton Use this molecule in a structure search.
Personal Collections. Publication or Magazine Article. Web-based Article blog or commentary. Available Chemicals Databases. Biological Properties. Chemical Reactions. Chemical Safety Data. Drugs or Compounds in Development. Imaging Agents. Information Aggregators. Journal Publishers via MeSH. Metabolic Pathways. Molecular Libraries Screening Center Network. Natural Products. NIH Substance Repository. Protein 3D Structures. Spectroscopy Databases.Calculated total magnetic moment for the unit cell within the magnetic ordering provided see below.
Typically accurate to the second digit. Calculated formation energy from the elements normalized to per atom in the unit cell. Stability is tested against all potential chemical combinations that result in the material's composition. In general, band gaps computed with common exchange-correlation functionals such as the LDA and GGA are severely underestimated.
We additionally find that several known insulators are predicted to be metallic. Persson, Geoffroy Hautier, Gian-Marco Rignanese, High-throughput density functional perturbation theory phonons for inorganic materials, Scientific Data doi Documentation Visualization: Henrique P. Miranda and Ludger Writz in preparation phononwebsite.
Select an element to display a spectrum averaged over all sites of that element in the structure. Download spectra for every symmetrically equivalent absorption site in the structure. Note the primitive cell may appear less symmetric than the conventional cell representation see "Structure Type" selector below the 3d structure.
These calculations determine the electronic structure of bulk materials by solving approximations to the Schrodinger equation. Tags: Dipotassium peroxide Potassium peroxide.
Material Details Final Magnetic Moment 0. Density 2. Band Structure and Density of States. Semi-local DFT tends to severely underestimate bandgaps. Please see the wiki for more info. Interactive plots. Phonon dispersion. Interactive plots Thermodynamic quantities. Data 5 doi K O Apply Gaussian smoothing: 0 eV. Interfaces 8 : doi Elasticity Reference for tensor and properties: Scientific Data 2 : doi Compliance Tensor S ij 10 Pa -1 Dielectric Properties Reference for tensor and properties: Scientific Data 4 : doi Similar Structures Explanation of dissimilarity measure: Documentation.
Up to 5 similar elemental, binary, ternary, quaternary, etc. E hull : energy above hull per atom [eV]. Calculation Summary Elasticity Methodology. How do we arrive at this value? This ensures that calculations performed using different InputSets are not compared against each other.
Again, using the example of an Fe2O3 run using Materials Project parameters, this would look like entry. Correct gas energies to obtain the right formation energies.Potassium oxide K 2 O is an ionic compound of potassium and oxygen. This pale yellow solid, the simplest oxide of potassium, is a rarely encountered, highly reactive compound. Some materials of commerce, such as fertilizers and cements, are assayed assuming the percent composition that would be equivalent to the chemical compound mixture K 2 O.
Potassium oxide is produced from the reaction of oxygen and potassium; this reaction affords potassium peroxideK 2 O 2. Treatment of the peroxide with potassium produces the oxide: . Alternatively and more conveniently, K 2 O is synthesized by heating potassium nitrate with metallic potassium:. Potassium hydroxide cannot be further dehydrated to the oxide but it can react with molten potassium to produce it, releasing hydrogen as a byproduct.
K 2 O crystallises in the antifluorite structure. In this motif the positions of the anions and cations are reversed relative to their positions in CaF 2with potassium ions coordinated to 4 oxide ions and oxide ions coordinated to 8 potassium. It is deliquescent and will absorb water from the atmosphere, initiating this vigorous reaction. The chemical formula K 2 O or simply 'K' is used in several industrial contexts: the N-P-K numbers for fertilizersin cement formulasand in glassmaking formulas.
Potassium oxide is often not used directly in these products, but the amount of potassium is reported in terms of the K 2 O equivalent for whatever type of potash was used, such as potassium carbonate. Potassium chloride provides less potassium than an equal amount of potassium oxide.
From Wikipedia, the free encyclopedia. CAS Number. Interactive image. PubChem CID. O [K] [K]. Chemical formula. Solubility in water. Crystal structure. Space group. Lattice constant. Coordination geometry. Heat capacity C. Std molar entropy S o GHS hazard statements.
GHS precautionary statements. Other anions. Other cations.
Related potassium oxides. Retrieved The Structure of Crystals. American Chemical Society 2nd ed. Reinhold Publishing Corp. Potassium compounds. Oxides are sorted by oxidation state. Categories : Oxides Potassium compounds Deliquescent substances.Component Lineage. It is intended to allow the simulation of complex catchments composed of up to thousands of hectares, while allowing the user to specify spatial variations in slopes, plant communities, soil types, and channel networks with individual response elements, in the manner of K2.
Thus unlike K2, in which a single storm event and watershed condition is treated, K2O2 allows a continuous simulation through as many days or years as are of interest, including growth and senescence of plants, changes at the surface due to management optionaland seasonal changes in climate.
Also, like Opus2, K2O2 monitors the soil profile, traces the flow of chemicals and nutrients through the soil, and simulates the interactions of solutes in the surface water and in the soil. K2O2 also simulates the effect of nutrients, water, and temperature on the plant. The rainfall information cannot with present knowledge be simulated satisfactorily, and must be input as a file. It is intended to offer modules that will read any common type of data format, such as tipping bucket records.
Files are read in segments from the beginning of a rainfall occurrence to the beginning of the next occurrence. Daily temperatures and radiation values may be presented as a sequential file of measured values, or may be simulated using a CLIGEN type generator model parameters that are appropriate for the location of interest.
Topographic Abstraction The K2 method of topographic representation is used in K2O2wherein a catchment is abstracted into a tree-linkage of elements which retain the area, slope, and hydraulic features of the area.
Soil profile characteristics, vegetation, management actions, and other features are specified individually for each element. Hydrologic Simulation The rainfall record is read step by step, and computational time steps are chosen based on changes in rainfall rate as well as flow conditions on the surface.
The Richards equation for flow of water through the soil and the kinematic wave equation for surface water flow are solved for that time step for all elements. These two solutions are linked by the calculated infiltration rate at the soil surface.
If desired, with these water flow solution results, transport of sediment, chemicals, and nutrients are calculated for surface and soil water flow. Sediment transport and erosion is modeled as for K2. Tracing of chemicals along with sediment in the surface, and the interaction of concentrations of solutes in surface water and soil surface is a new feature to this model.
The methodology and assumptions involved are outlined below. Plant Growth and Water Use Vegetation is an important part of continuous hydrologic water balance, and K2O2 uses a mechanistic plant model to simulate the effect of plants in soil water use, nutrient uptake, and interception of precipitation. The plant model allows a mix of up to 5 plants on each element, whose relative effect can be adjusted by the user. Nutrient and Residue Cycling This component is based on a daily time-step version of the Century Model by Parton, et al.
This model simulates the decomposition of surface and soil organic matter, the mineralization of N and P, and other assiciated processes. We use it to estimate carbon balance and the utilization of fertilizer and native soil nutrients.
Management Effects Natural, ungrazed catchments will require no specification of management changes, but other areas of agricultural interest may have management changes simulated by the model. Such actions as grazing, planting, harvest, cultivation, fertilization, chemical application, and irrigation, may be described and the resulting effect on all hydrologic and transport processes can be simulated with the model. The effects of management are directly reflected in surface hydrologic roughness, vertical distribution of material in the surface soil, addition and subtraction of organic matter or chemicals, changes in interception of radiation and precipitation, and for irrigation, changes in available soil water.
For the simulation of surface water dynamics expressed in this model, time distributed data on rainfall is necessary.Basic concepts of macroeconomics pdf
For only a few specific climatic conditions will hourly rainfall amounts be suitable. In general, rainfall rate data from tipping bucket or weighing raingages are required. At present, the format used in Opus is employed, but code may be easily inserted to read other record formats.The overall oxidation number is -2 so the average oxidation number of O is The oxidation number of O in any elemental form e. O2, O3 is zero.
Typically in chemical compounds the oxidation number of O is -2 oxide ion. Asked By Curt Eichmann. Asked By Leland Grant. Asked By Veronica Wilkinson. Asked By Daija Kreiger. Asked By Danika Abbott. Asked By Consuelo Hauck. Asked By Roslyn Walter. All Rights Reserved. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Multiply.
Ask Login. Oxidation Numbers. Asked by Wiki User. Top Answer. Wiki User Answered Related Questions. What is the oxidation number for O in K2O2? What is the oxidation number of K in KO2? What is the oxidation number of Ru O 4?
What is the oxidation number of O in O? Oxidation number of FeO? What is the oxidation number for sand? What is the oxidation number of H2O2? What is the oxidation number for ClO3? What is the oxidation number of OF2? What is the oxidation number for KNO?Bobber fender kit
What is the oxidation number of KNO2? What is the oxidation number of oxygen in CO2? What is oxidation number of C in C? What is the oxidation number for Nb in NbO2? What is the oxidation number of nitrogen for N2O? What is the oxidation number of selenium in SeO24? What is the oxidation number of Ti in TiO?The simulation model is available in two forms: a command line version, and a windows dialog version.
Running the command line version requires preparing an options file K2O2run. The windows version creates such a file, and that file can be used in running the command line version. At least one Rainfall Record file giving the timing and intensity patterns of all rains during the period of interest, and 3. An optional Management file describing management actions and giving their timing, 4.
An optional Measured Climate data file giving maximum and minimum daily temperatures and either daily net radiation on Langleys or daily pan evaporation covering the period of simulation. For a larger catchment with several raingages, their identification numbers are required to be listed in the parameter file.
Alternatively, if there is no Measured Climate data available, the model will use a stochastic simulation method WGen Richardson and Wright to create a record, and location-appropriate generating parameters need to be provided in the Parameter File.
A complete list of the parameters used in the input files is given in the parameter list page.The village of pallailla
In the following sections the parameters in these files and their effects will be briefly described, where not obvious. Refer to the parameter list page for information on parameters not described here.Tl866ii plus software download
Each file is divided into blocks by topic. The parameter values are relatively free syntax, given either by writinge. In that case each line will represent an index value. For example:. In the parameter list table, the CODE value column describes the minimum set of letters that are used to identify the parameter being specified.
In other words, e. The parameter file is composed of one global block specifying global values, plus a block for each planechannel or storage element in the linked network of elements.JEE MAINS 7TH JAN 2020 SHIFT 1- Oxidation number of potassium in K2O, K2O2 and KO2, respectively, is
Each element has a unique integer ID number. The element interconnections are specified by giving ID values for an upstream element s [e.How many moles K2O2 in 1 grams? The answer is 0. We assume you are converting between moles K2O2 and gram. You can view more details on each measurement unit: molecular weight of K2O2 or grams This compound is also known as Potassium Peroxide. The SI base unit for amount of substance is the mole. Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between moles K2O2 and gram. Type in your own numbers in the form to convert the units! You can do the reverse unit conversion from grams K2O2 to molesor enter other units to convert below:. In chemistry, the formula weight is a quantity computed by multiplying the atomic weight in atomic mass units of each element in a chemical formula by the number of atoms of that element present in the formula, then adding all of these products together.
A common request on this site is to convert grams to moles. To complete this calculation, you have to know what substance you are trying to convert.
The reason is that the molar mass of the substance affects the conversion. This site explains how to find molar mass. We use the most common isotopes. This is how to calculate molar mass average molecular weightwhich is based on isotropically weighted averages. This is not the same as molecular mass, which is the mass of a single molecule of well-defined isotopes. For bulk stoichiometric calculations, we are usually determining molar mass, which may also be called standard atomic weight or average atomic mass.
Using the chemical formula of the compound and the periodic table of elements, we can add up the atomic weights and calculate molecular weight of the substance. Formula weights are especially useful in determining the relative weights of reagents and products in a chemical reaction. These relative weights computed from the chemical equation are sometimes called equation weights.
When calculating molecular weight of a chemical compound, it tells us how many grams are in one mole of that substance.
The formula weight is simply the weight in atomic mass units of all the atoms in a given formula. If the formula used in calculating molar mass is the molecular formula, the formula weight computed is the molecular weight. The percentage by weight of any atom or group of atoms in a compound can be computed by dividing the total weight of the atom or group of atoms in the formula by the formula weight and multiplying by You can find metric conversion tables for SI units, as well as English units, currency, and other data.
Type in unit symbols, abbreviations, or full names for units of length, area, mass, pressure, and other types. Examples include mm, inch, kg, US fluid ounce, 6'3", 10 stone 4, cubic cm, metres squared, grams, moles, feet per second, and many more!
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