Chemistry Lab

Calculating Average Atomic Mass Katherine Toro November 15, 2009 H. Chemistry limit 7 Purpose: Calculate the bonny nuclear gage of an fragment similar to the process of scientists. Procedure: Your group set up be devoted a sample of the ‘’ piece’’ vegium. Vegium has trinity isotopes: vegium- 1 (peas), vegium-2 (white beans), and vegium-3 (black beans). You will determine the telling abundance and nuclear mass of sever every(prenominal)y isotope, then calculate the average atomic mass of the vegium. Give each of the isotopes a common name, be creative. Hint: The only things you need to measure are the military man action of each isotope and the mass of the entire sample of each isotope. formerly you have calculated relative abundance and isotopic mickle you will need to remember how to calculate average atomic mass. Calculations: Average *a tomic mass*;) = (mass of isotope × relative abundance) data: Questions: The average atomic mass of most fixingss is a non an integer value because atomic weights are a certificate of indebtedness of both the subroutine of protons and the number of neutrons. The identity of each element is defined by the number of protons it has.

However, the same element throne have multiple isotopes, each of which has a divers(prenominal) number of neutrons. So the mass of a specific atom of peerless element does not weigh exactly the same as all other. It is weigh ted therefore it cannot be a social whole n! umber unless the numbers all up to exactly a whole number. The average atomic mass of most elements is not an integer value because the relative atomic weight or mass of an element is designated in atomic mass units (amu or u). It originally was supposed to be the sum of the protons and neutrons for a attached element. There are many reasons for this variation, such as elements consisting of atoms with contrary number of neutrons....If you want to get a full essay, enclose it on our website: BestEssayCheap.com

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