Topic: Percentage Abundance
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What is the formula for getting the percentage abundance?
(number of atoms of a given isotope/total number of atoms of all isotopes of that element) x 100% Read More »
Source: http://wiki.answers.com/Q/What_is_the_formula_for_getting_the_per...
What are the percentages of elements comprising the crust in orde...
The Earth's crust consists of the following elements and percentages: Oxygen--47% Silicon--28% Aluminum--8% Iron--5% Calcium--4% Sodium--3% # Potassium--3% Magnesium--2% Titanium--0.5% All others--<1% Answers.com: Crust http://www.answers.c... Read More »
Source: http://wiki.answers.com/Q/What_2_elements_make_up_earths_interior
What is the percentage of Abundance of aluminum in the earths cru...
Aluminum is found in 8.1% (approx) by weight in earth's crust. Thanks, Written by: Deepak Joishar Read More »
Source: http://wiki.answers.com/Q/What_is_the_percentage_of_Abundance_of_...
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ya don't
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Source: http://wiki.answers.com/Q/How_do_you_calculate_percentage_of_abun...
start by getting its isotpic mass. you can do this by taking the mass of an atom and dividing it by 12.01, which is kinown as the carbon standard and is used in the calculation for any element. this will give you a ratio. multiply this numb...
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Source: http://wiki.answers.com/Q/How_do_you_get_the_mass_of_an_isotope_f...
The most abundant gases in Earth's atmosphere are listed as Nitrogen 78.08%, Oxygen 20.95%, Water 0 to 4%, Argon 0.93%, Carbon Dioxide 0.0360%, Neon 0.0018%, Helium 0.0005%, Methane 0.00017%, Hydrogen 0.00005%, Nitrous Oxide 0.00003%, Ozone...
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Source: http://www.chacha.com/question/what-are-to-most-abundant-gases-in...
to find the abundance of zinc you simply get in a golf cart and begin down a large hill, in an ATtempt to get to the top, at that point you probably hit a rock, flipped over, and split in half, you will then call the doctor and see how many...
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Source: http://answers.yahoo.com/question/index?qid=20100103132436AA6NGye
if we say that the fraction which is B-10 is "X" then the fraction which is B-11 is (1-X) set up their contributionto the average mass (X) (10.013) + (1-X) (11.093) = 10.68 10.013 X + 11.093 - 11.093X = 10.68 11.093 - 10.68 = 11.093X - 10.0...
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Source: http://answers.yahoo.com/question/index?qid=20110925133510AAkhAtr
(78.918 amu) (x) + (80.916 amu) (1 - x) = 79.904 amu 79.904 is the average atomic weight for Br. x = the decimal percent abundance for Br-79 1 - x = the decimal percent abundance for Br-81 More problems like this: http://www.chemteam.info/M...
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Source: http://answers.yahoo.com/question/index?qid=20110828211452AAK6t0G
And isotope is an atom - the same kind of atom, that simply has a different number of neutrons. When we look at allllllllllll of the atoms of a certain element, if we weighed them, the mass of all of them would not necessarily be the mass o...
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Source: http://answers.yahoo.com/question/index?qid=20070708230207AACiIKy
