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lisabon 2012 [21]
2 years ago
8

How many moles of carbon atoms is 7.72 x 10 ^24 atoms of carbon? Round to 2 decimal places

Chemistry
1 answer:
soldier1979 [14.2K]2 years ago
5 0

Answer:

<h2>12.82 moles </h2>

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

n =  \frac{N}{L} \\

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

n =  \frac{7.72  \times {10}^{24} }{6.02 \times  {10}^{23} }  \\  = 12.8 239

We have the final answer as

<h3>12.82 moles</h3>

Hope this helps you

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