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3 years ago

How many moles are in 1.9 x 1046 atoms of chromium?

Chemistry

1 answer:

faust18 [17]3 years ago

8 0

Answer:

<h2>3.156 × 10²² atoms</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

$n = \frac{1.9 \times {10}^{46} }{6.02 \times {10}^{23} } \\ = 3.156 \times {10}^{22}$

We have the final answer as

<h3>3.156 × 10²² atoms</h3>

Hope this helps you

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Given:

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To find:

The maximum height of a nitrogen molecule when released from the Earth's surface before coming to rest.

Solution:

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The maximum height at which nitrogen molecule will go before coming to rest is 14 kilometers.

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