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Tatiana [17]
3 years ago
6

Compare and contrast the use of U-238 and C-14 in absolute age dating

Chemistry
2 answers:
Talja [164]3 years ago
7 0

Carbon-14 and Uranium-238 have something we call a half live, which is basically a known time period for it to change half of its C-14 or U-238 radioactively decay. Since we know how long that is 5730 years for Carbon-14 for half a sample to deteriorate, than we can figure out how old it is.



gizmo_the_mogwai [7]3 years ago
7 0

Answer:

Explained

Explanation:

Carbon dating C-14 is done to find the age of relatively younger fossils and rocks.Half life of C-14  is only 5700 years and can only be used to date fossils of about 50,000 years old. Where as Uranium-238 has half life of about 4.5 billion years. If 50% of U-238 is left in sample it means that the sample is 4.5 billion year old. It is to be noted that no fossils contain U-238 in it. It is contained only in the igneous and volcanic rocks. So no fossils can be dated using U-238.

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Hello,

In this case, a solution is formed when a solute is completely dissolved in a solvent, thus, for this situation, the sugar is the solute and the water the solvent but in addition to them we find spices which are also considered in the total mass of the solution. In such a way, for computing the total mass we must add the mass of three constituents (115 g sugar, 350 g water and 5 g spices) as shown below:

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