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The average molecular weight of polyethylene can vary significantly depending on its type and method of production, typically ranging from about 5,000 to over 1,000,000 g/mol. Common grades of low-density polyethylene (LDPE) have molecular weights around 20,000 to 300,000 g/mol, while high-density polyethylene (HDPE) often falls between 100,000 and 1,000,000 g/mol. The molecular weight influences properties such as strength, flexibility, and processing characteristics.
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What is the chmical name of th hmldpe?
The chemical name for high-molecular-weight polyethylene is polyethylene. It is often referred to as HMW-HDPE (high molecular weight high density polyethylene).
What is the density of HMHDPE?
The density of high molecular weight high density polyethylene (HMHDPE) typically ranges from 0.945 to 0.965 grams per cubic centimeter.
Why molecular weight of air is 28.9?
It is the weighted average of the individual molecular weights of the components oxygen and nitrogen. Generally speaking, air is composed of 21% oxygen and 79% nitrogen. Thus the average molecular weight of air is calculated as follows: MW air = (.21)*(MW O2) + (.79)*(MW N2)
What is the molecular weight of an amino acid?
The average molecular weight of an amino acid is around 110 daltons. However, the molecular weight can vary depending on the specific amino acid due to differences in their side chains.
How does chemical inertness of polyethene arise?
The chemical inertness of polyethylene arises from its strong carbon-carbon bonds in the polymer chain. These bonds are non-polar and do not readily react with other chemicals, making polyethylene resistant to corrosion and degradation. Additionally, the high molecular weight and lack of functional groups in polyethylene further contribute to its chemical inertness.
What is the chmical name of th hmldpe?
The chemical name for high-molecular-weight polyethylene is polyethylene. It is often referred to as HMW-HDPE (high molecular weight high density polyethylene).
What are the differences between polyethylene oxide and polyethylene glycol?
Polyethylene oxide and polyethylene glycol are both polymers made of repeating ethylene glycol units. The main difference between them is their molecular weight. Polyethylene oxide has a lower molecular weight and is a liquid at room temperature, while polyethylene glycol has a higher molecular weight and is a solid or semi-solid at room temperature. Additionally, polyethylene glycol is commonly used in pharmaceuticals and cosmetics, while polyethylene oxide is used in industrial applications.
How do you calculate number average molecular weight given molecular weight range and fraction?
To calculate the number average molecular weight, multiply each molecular weight value within the range by its corresponding fraction, then sum up these products. This sum represents the numerator of the equation. Next, sum up all the fractions in the denominator. Finally, divide the numerator by the denominator to obtain the number average molecular weight.
What is the cost of ultra high molecular weight polyethylene?
200 rs./kg
What is the density of HMHDPE?
The density of high molecular weight high density polyethylene (HMHDPE) typically ranges from 0.945 to 0.965 grams per cubic centimeter.
What is the weight average molecular weight of the compound in question?
The weight average molecular weight of the compound is the average of the molecular weights of all the molecules in the sample, weighted by their relative abundance.
What is the weight average molecular weight of the polymer in question?
The weight average molecular weight of the polymer is the average of the molecular weights of all the polymer chains in the sample, taking into account the weight of each chain.
What is the cost of ultra-high molecular weight polyethylene?
rate of uhmwpe made by reliance is around Rs. 106/= per kg. rate of uhmwpe made in china(ISO (9001) is around Rs. 155/- per kg.
What is the average molecular weight of a nucleotide?
The average molecular weight of a nucleotide is around 330 daltons.
What is the average molecular weight of nucleotides?
The average molecular weight of nucleotides is around 330 daltons.
What is the average molecular weight of mobiltherm 603 oil?
which is the average molecular weight 603 Mobiltherm?
What is average molecular weight of air?
The average molecular weight of dry air is 28.96 g/gmol.
