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3 years ago

Fossil originally has 254 g of carbon-14 but currently has 127 g of carbon-14 the fossil is most likely

Chemistry

1 answer:

KATRIN_1 [288]3 years ago

8 0

Answer:

The answer to your question is: letter C) 5730

Explanation:

Data

Originally Carbon - 14 254 g

Currently Carbon - 14 127 g

Half-life of Carbon -14 is when half of the original amount of Carbon disintegrates.

Then, if originally there were 254 and now there are 127, only one half life passed.

Half life of carbon -14 is 5730 years old.

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Nimfa-mama [501]

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Joan needs a 0.053-M solution of HCl, but only has access to 2.12-M HCl, a 10-mL graduated pipet, and a 25-mL volumetric flask.

dmitriy555 [2]

Answer:

Joan should measure 0.625 mL of 2,12 M HCl solution to create her desired solution.

Explanation:

Molarity of HCl Joan has access to = $M_1=2.12 M$

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Volume of 0.053 M of HCl Joan can prepare = $V_2=25 mL$

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$V_1=\frac{M_2V_2}{M_1}$

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Joan should measure 0.625 mL of 2,12 M HCl solution to create her desired solution.

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Answer:

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<h2><u>Answer</u> : </h2>

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$\mathrm{✌TeeNForeveR✌}$

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