What is molecular weight, Biology

What is molecular weight?

Molecular Weight :  The molecular weight of a molecule refers to the sum of the atomic weights of all the atoms making up the molecule. The gram molecular weight of a substance is the molecular weight expressed in grams. For example, the atomic weight of oxygen is 16, and that of hydrogen is 1, so one gram molecular weight, or mole, of water equals 18 grams.

Since one mole of any substance contains the same number of molecules, 6.022 x 1023, the concept is useful in describing chemical reactions. In biological experiments, the concentration of a solution, that is, the amount of solute dissolved in the solvent, is usually expressed in terms of molarity. A molar (1M) solution contains a mole of solute in 1 liter of solution. Note that by convention, "mole" is abbreviated as "mol."

453_Molecular Weight.png

Posted Date: 4/29/2013 3:41:30 AM | Location : United States







Related Discussions:- What is molecular weight, Assignment Help, Ask Question on What is molecular weight, Get Answer, Expert's Help, What is molecular weight Discussions

Write discussion on What is molecular weight
Your posts are moderated
Related Questions
What is the function of vitamin E? In which foods can it be found? Vitamin E, or tocopherol, is a fat-soluble vitamin that participates as coenzyme in the respiratory chain, t

Limitations of Panoramic X-Ray There are certain limitations to panoramic Xrays that you have to be awareof:  The amount of magnification  Fine details of structures arou

Ask question importance of genetics in human life #Minimum 100 words accepted#

Domestication - Wildlife It means that man has taken under his direct care the living beings which are useful to him. Through extensive breeding programmes, he has modified th

What is the cellular structure to which mRNA molecules bind to start the protein synthesis? To make proteins mRNA molecules of necessity associate to ribosomes. Ribosomes have

What are called Transactions? The grouped SQL statements are known as Transactions (or) A transaction is a collection of actions embused with ACID properties.


GENETIC TERMINOLOGY (i)         Gene - Mendel used the term factor for a gene. A gene is the unit of DNA responsible for the appearance and inheritance of character. (ii)

characteristics of class mamalias

Proteins of Animal Origin - Milk: Milk: A value of 3.5% protein is often considered as an average for milk. Milk protein has traditionally been divided into 2 classes - casei