Molecular weight calculators

13 Oct 2024 Tags: Materials Science Polymer Science Polymer Characterization Polydispersity Index Popularity: ⭐⭐⭐Polydispersity Index CalculationThis calculator determines the polydispersity index (PDI) of a polymer sample, which is a measure of the distribution of molecular weights within the sample.ExplanationCalculation Example: The polydispersity index (PDI) is a dimensionless quantity that describes the breadth of the molecular weight distribution of a polymer sample. It is calculated by dividing the weight-average molecular weight (Mw) by the number-average molecular weight (Mn). A PDI value of 1 indicates a monodisperse polymer, meaning all molecules have the same molecular weight. A PDI value greater than 1 indicates a polydisperse polymer, with a wider range of molecular weights.Q: What is the significance of the polydispersity index (PDI)?A: The PDI provides information about the homogeneity of the polymer sample. A higher PDI indicates a wider range of molecular weights, which can impact the physical properties of the polymer, such as its viscosity, mechanical strength, and processability.Q: How does the PDI affect the properties of a polymer?A: The PDI can influence the properties of a polymer by affecting its molecular weight distribution. A wider distribution (higher PDI) can lead to variations in properties like viscosity, mechanical strength, and thermal stability.Variables Symbol Name Unit Mw Weight-Average Molecular Weight g/mol Mn Number-Average Molecular Weight g/mol Calculation ExpressionPolydispersity Index: The polydispersity index (PDI) is calculated by dividing the weight-average molecular weight (Mw) by the number-average molecular weight (Mn).CalculatorWeight-Average Molecular Weight (g/mol): Number-Average Molecular Weight (g/mol): Calculated valuesConsidering these as variable values: Mn=20000.0, Mw=50000.0, the calculated value(s) are given in table below Derived Variable Value Polydispersity Index 2.5 Similar Calculators Analyzing Thermomechanical Properties of Polymeric Materials Plasticity Analysis of Acrylic Polymers Thermodynamic Analysis in Polymer Characterization Quantitative Polymer Characterization Quantitative Polymerization Analysis Polymer Property Calculations Polymer Film-Forming Property Estimation Quantifying Polymer Properties through Computational Modeling Polymer Film-Forming Properties: Structural and Molecular Weight Implications Micromechanical Modeling of Polymeric CompositesExplore Polymer Characterization Molecular Weight Distribution Polymer Properties and Applications What is the formula to calculate the polydispersity index (PDI) of a polymer sample? If a polymer sample has a weight-average molecular weight (Mw) of 50,000 g/mol and a number-average molecular weight (Mn) of 20,000 g/mol, what is the first step to calculate its PDI? A polymer sample has a weight-average molecular weight (Mw) of 50,000 g/mol and a number-average molecular weight (Mn) of 20,000 g/mol. Using these values, derive the formula for polydispersity index (PDI)Calculator

DailyCalcs turns your phone into a science calculator to simplify everyday tasks in the lab. Eight calculators, including a new Specific Productivity Calculator for use with fed-batch cell culture processes and a Transfection calculator you can use to simplify transfection experimental setup.The Specific Productivity Calculator for fed-batch cell culture processes takes into account Duration of Culture (Days), VCD and Titer levels to calculate early and late qP results. Next step recommendations are suggested based on the calculations, with an in-app ability to email your results for consultation assistance.The Transfection calculator addresses the transfection reagent, number of samples, the vessel size, and number of replicates and it calculates the exact amounts of all necessary reagents and media for your experiment.This application features the 8 following calculators absolutely free:1. Molarity CalculatorThe Molarity Calculator tool will allow you to find the mass required to prepare a solution of known volume & concentration, find the volume of solution required to dissolve a known mass to a specific molarity or find a concentration of a solution resulting from a known mass & volume.2. Dilution CalculatorThe Dilution Calculator tool will allow you to determine the required volume of a stock solution of known concentration to make a final solution of desired volume & concentration. This tool greatly simplifies the everyday tasks of making solutions in the lab.3. Molecular Weight CalculatorThe Molecular Weight Calculator will compute the average molecular weight (MW) of molecules by entering in the chemical formula (i.e. C3H2O4). Supports complex molecules such as "C3H2(NO)4" & "C3H2Cl4.(H2O)3" & is linked into the Molarity Calculator to work in tandem for molarity calculations.4. Cell Culture Reference ChartsReference charts for cell culture dishes, plates & flasks showing vital data such as growth surface area, cell seeding density, number of cells at confluency, volume of growth media necessary & required versene or trypsin volume for cell detachment.5. Unit ConverterA comprehensive unit converter tool capable of converting over 44 units in 7 different types of measurements including the following:Distance converter (m, ft, in, cm, mm, yards & km)Speed converter (m/sec, ft/sec, in/sec, cm/sec, km/sec, miles/sec, miles/hr, km/hr, knots)Area converter (m2, ft2, in2, yd2, acres, km2, miles2)Volume converter (liters, m3, cm3, ft3, in3, yards3)Weight converter (kg, g, oz, lbs, tons)Temperature converter (Celcius, Farenheit, Kelvin)Molar converter (mole, mM, μmol, nmol, pmol, fmol).6. Conversions for MediaUnit of measure conversion tool for powder and AGT media that converts Gibco powder and AGT media products between KG and L.7. Specific Productivity CalculatorThe Specific Productivity Calculator for fed-batch cell culture processes takes into account Duration of Culture (Days), VCD and Titer levels to calculate early and late qP results. Next step recommendations are suggested based on the calculations, with an in-app ability to email your results

 Advertisement Advertisement This highly functional and easy to use Scientific Calculator is a must for science students. The main calculator has over 40 functions while an extensive number of utilities, tools and science data reference systems can be called. The calculator contains one of the most extensive measurement converters available. Listed are over 2000 equations for physics, chemistry, maths, trigonometry and statistics. The value of over 100 constants can be quickly found as well as the name, formula and molecular weight of over 3000 compounds. Listed are over 400 science, maths and statistics symbols, as well as extensive lists of electrical symbols and piping and process symbols. Included are extensive tools including triangle calculators, vector calculators, shape calculators, kinematic calculators, half-life calculators, maths calculators, gas laws calculators, statistical calculators, molar mass calculators and pH calculators. The system contains extensive science data reference systems including SI units, derived quantities, maths laws, atomic structures, ions, homologous series, frequencies, shapes, angle types, material properties, acids, bases, conjugate pairs, ecological groups and biomes. The system includes interactive flowcharts for mechanical and electrical units. It has 9 colour coded periodic tables, over 30 types of property data for every element, full electron configuration of the elements, radiation types and quantum numbers. It has extensive property data of common materials, A glossary system contains the phonetic alphabet, science and medical fields, and acronyms and abbreviations used in science. The calculator also contains an event timer, yearly calendar and world times system. The output from the calculator is recorded in a electronic note pad and can be displayed in decimals, scientific notation or engineering notation. A search system can be used to quickly locate science tools and data reference systems, and a help systems describes operation. Easily carry out extensive calculations. This easy to use calculator is a must for science students. It includes triangle calculators, vector calculators, shape calculators, statistical calculators, measurement converters, 3000 compounds, 2000 formulas, 100 constants and 400 symbols. easy to use scientific calculator, science tools, science data reference systems File Name:DPLS Scientific Calculator Version:3.2.1 Date:01 Aug 20 Author:Dot Point Learning Systems Runs on:Win2000, WinXP, Win7 x32, Win7 x64, Windows 8, Windows 10, WinServer, WinOther, WinVista, WinVista x64 Rating: License:Freeware File Size:15.36 Mb Downloads:2214 Price:Free Version Date Released Release Notes 3.2.0 11.01.2019 Many new, easy to use science tools and science data reference systems added. 2.8.0 02.10.2016 Many new science tools and