Average molecular weight calculator

Author: b | 2025-04-24

There are several ways to calculate molecular weight of polymers like number average of molecular weight, weight average of molecular weight, Z-average molecular

Calculating Molecular Weight (number and weight average) for

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

Number-Average Molecular Weight Calculator

Molecular Weight Calculator The Molecular Weight Calculator calculates a molecule's molecular weight (or formula weight), and the molecule's percent composition, displaying the results for up to 20 compounds simultaneously. The program also supports amino acids, including predicting the theoretical b and y or c and z ions that could be created by MS/MS dissociation. The program is available for Windows (XP/7/8). More Info Dart Scorekeeper The Dart Scorekeeper is a fairly old, yet still functional, program for aiding dart (Cricket) players to keep track of scoring and game statistics when playing the games of Cricket, 301, or Golf. It supports up to 6 teams of two players each, includes modes for both cut-throat and polite scoring, and ranks players based on a unique algorithm that takes player strengths and recent games played into account. The software includes a graphical representation of the dart board plus the ability to play sounds for each player and important events (customizable). More Info. There are several ways to calculate molecular weight of polymers like number average of molecular weight, weight average of molecular weight, Z-average molecular Average Molecular Weight calculator uses Average Molecular Weight = Mass of Mixture of Gases/Number of Moles of Mixture to calculate the Average Molecular Weight, The Average Molecular Weight (or mean molecular weight) of a mixture is the ratio of the mass of a sample of the mixture to the number of moles of all species in the sample.

How to Calculate and Solve for Weight Average Molecular Weight

Does not affect general growth characteristics such as gain in body mass, nor does it affect hindlimb muscle mass. However, heart mass and liver mass are both significantly increased by 11% in Etomoxir-treated rats[4]. MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only. Molecular Weight 326.82 Formula C17H23ClO4 CAS No. 124083-20-1 Appearance 34°C Liquid Color Colorless to light yellow SMILES O=C(OCC)[C@@]1(OC1)CCCCCCOC2=CC=C(C=C2)Cl Shipping Room temperature in continental US; may vary elsewhere. Storage -20°C, protect from light, stored under nitrogen Solvent & Solubility In Vitro: DMSO : 100 mg/mL (305.98 mM; ultrasonic and warming and heat to 60°C; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO) Preparing Stock Solutions Concentration Solvent Mass 1 mg 5 mg 10 mg 1 mM 3.0598 mL 15.2989 mL 30.5979 mL 5 mM 0.6120 mL 3.0598 mL 6.1196 mL View the Complete Stock Solution Preparation Table * Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (protect from light, stored under nitrogen). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month. Molarity Calculator Dilution Calculator Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol) Mass = Concentration × Volume × Molecular Weight * Concentration (start) × Volume (start) = Concentration (final) × Volume (final) This equation is commonly abbreviated as: C1V1 = C2V2 Concentration (start) C1 × Volume (start) V1 = Concentration (final) C2 × Volume (final) V2 In Vivo: Select the appropriate dissolution method based on your experimental animal and administration route. For the following dissolution methods, Chemistry include:1. Coordination compounds: ${\left[ {M\left( {{H_2}O} \right)n} \right]x + nL \to \left[ {M\left( {{H_2}O} \right)mLn} \right]x + }$ (formation of a complex ion), ${{{CFT:}}\Delta {{o = 10Dq}}}$ (crystal field theory equation).2. Electrochemistry: ${{{{E}}^ \circ }{{cell}} = {{{E}}^ \circ }{\text{reduction}} - {{{E}}^ \circ }{\text{oxidation}}}$ (standard cell potential), ${\Delta {G^ \circ } = - nF{E^ \circ }\text{cell}}$ (Gibbs free energy equation for electrochemical reactions)Here are some important formulas related to polymers that are relevant for NEET chemistry:Degree of Polymerization (DP): The degree of polymerization is the number of monomers in a polymer chain. It is calculated using the formula:$\text{DP} = \dfrac{\text{Molecular weight of polymer}}{\text{Molecular weight of monomer}}$Polymerization Reaction: Polymerization is the process of creating polymers by combining monomers. The general formula for polymerization is:${n\left( {C{H_2} = C{H_2}} \right) \to \left( { - C{H_2} - C{H_2} - } \right)n}$This formula represents the polymerization of ethylene ${\left( {C{H_2} = C{H_2}} \right)}$ to form polyethylene ${\left( { - C{H_2} - C{H_2} - } \right)n}$.Repeat Unit: The repeat unit is the smallest unit that repeats in a polymer chain. It is important to identify the repeat unit to determine the structure and properties of the polymer. The formula for the repeat unit is determined by the monomer used in the polymerization reaction.Polydispersity Index (PDI): The polydispersity index is a measure of the molecular weight distribution of a polymer. It is calculated using the formula:${{{PDI = }}\dfrac{{M_w}}{{M_n}}}$Where $M_w$ is the weight average molecular weight and $M_n$ is the number average molecular weight.Tacticity: Tacticity refers to the arrangement of side groups on the polymer chain. The three types of tacticity are isotactic, syndiotactic, and atactic. The formula for the tacticity of a polymer depends on the monomer used and the arrangement of the side groupsList of Ionic Equilibrium Formulas for NEETThe study of ionic equilibrium involves the use of a variety of formulas, which are used to calculate various properties of solutions containing ionic compounds. Some of the important formulas used in the study of ionic equilibrium include:1. Ionic Product of Water: The ionic product of water is a measure of the concentration of the hydrogen ions and hydroxide ions in a solution. The formula for the ionic product of water is $K_w = [H^+][OH^-]$, where Kw is the ionic product of water, $[H^+]$ is the concentration of hydrogen ions, and $[OH^-]$ is the concentration of hydroxide ions.2. Acid Dissociation Constant: The acid dissociation constant, also known

Solved Calculate the number average molecular weight, weight

Acid and Base Solution PreparationThis calculator provides lab-ready directions describing how to prepare an acid or base solution of specified molarity (M) or normality (N) from a concentrated acid or base solution. To prepare a solution from a solid reagent, please use the Mass Molarity Calculator. To dilute a solution of known molarity, please use the Solution Dilution Calculator.How is the Molarity of a percentage solution calculated?Using 70% concentrated nitric acid as an example: 70% nitric acid means that 100 grams of this acid contains 70 grams of HNO3. The concentration is expressed at 70% wt./wt. or 70 wt. % HNO3. Some chemists and analysts prefer to work in acid concentration units of Molarity (moles/liter). To calculate the molarity of a 70 wt. % nitric acid the number of moles of HNO3 present in 1 liter of acid needs to be calculated. Knowing the density of the acid to be 1.413 g/mL, we can calculate the weight of 1 L of 70% HNO3 to be 1413 grams. Knowing that the solution is 70 wt % would then allow the number of grams of HNO3 to be calculated: (0.700)(1413g) = 989.1 grams HNO3 per liter. Dividing the grams of HNO3 by the molecular weight of HNO3 (63.01 g/mole) gives the number of moles of HNO3 / L or Molarity, which is 15.7 M.What is the equation used for Molarity Conversion?The following equation is used for calculating acid and base molarity where the concentration is given in wt %: [(% × d) / MW] × 10 = MolarityWhere: % = Weight %; d = Density (or specific gravity); MW = Molecular Weight (or Formula Weight).The above equation can then be used to calculate the Molarity of the 70 wt % Nitric Acid: [(70 × 1.413) / 63.01] × 10 = 15.7 MHow do I calculate the Normality of an acid or base from its Molarity?There is a relationship between normality and molarity. Normality can only be calculated when we deal with reactions, because normality is a function of equivalents. Normality refers to compounds that have multiple chemical functionalities, such as sulfuric acid, H2SO4. A 1 M solution of H2SO4 will contain one mole of H2SO4 in 1 liter of solution, but if the solution is titrated with a base, it will be shown to contain two moles of acid. This is because a single molecule of H2SO4 contains two acidic protons (H+ Ions). Thus, a 1 M solution of H2SO4 will be 2 N. The normality of a solution is the molarity multiplied by the number of equivalents per mole. Why does the calculator use 56.6% weight percentage instead of 28% for ammonium hydroxide?28% ammonia (NH3) is equal to approximately 56.6% ammonium hydroxide. Our product data (AX1303) reports the % ammonia and not the % ammonium hydroxide. Our calculator is designed to use the % ammonium hydroxide.

Number Average and Weight Average Molecular Weight for

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Calculator to compute the average molecular weight of a gas

Puppy Growth Calculator: How to Predict Your Dog’s Adult Size and WeightDo you have a new puppy and wonder how big they will grow up to be? Do you want to track your puppy’s growth and development and make sure they are healthy and happy? If so, you might be interested in using a puppy growth calculator, a handy tool that helps you predict your dog’s adult size and weight based on their current age, weight, and breed.In this article, we will explain how to use the puppy growth calculator, what factors affect your puppy’s growth rate, and how to care for your puppy during their growth stages. We will also answer some frequently asked questions about puppy growth and development. Let’s get started!Key TakeawaysThe puppy growth calculator estimates your dog’s adult size and weight based on their current age, weight, and breed. You can use this calculator to monitor your puppy’s growth and development and compare it with the average growth rate of their breed.The average puppy growth rate varies depending on the breed, size, gender, health, and nutrition of your puppy. Generally, smaller breeds grow faster and reach their adult size sooner than larger breeds, and female dogs tend to be smaller than male dogs of the same breed.To use the puppy growth calculator, you need to enter your puppy’s age, weight, and breed, and the calculator will give you the predicted adult size and weight for your puppy. You can also see the growth chart and the growth curve for your puppy’s breed, and compare your puppy’s growth with the average growth of their breed.You should take good care of your puppy during their growth stages, by providing a balanced diet, regular exercise, routine checkups, vaccinations, deworming, and spaying/neutering. You should also consult your veterinarian before, during, and after your puppy’s growth, especially if you notice any signs of abnormal growth or health issues.How to Use the Puppy Growth CalculatorThe puppy growth calculator is a simple and easy-to-use tool that helps you predict your dog’s adult size and weight based on their current age, weight, and breed. You can use this calculator to monitor your puppy’s growth and development and compare it with the average growth rate of their breed.To use the puppy growth calculator, you need to follow these steps:Enter your puppy’s age. You can enter the age in weeks or months. The age affects your