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Nana76 [90]
3 years ago
11

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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kompoz [17]

Answer:

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Explanation:

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                   While remaining classes of organic compounds are derived from these three classes of hydrocarbons. Therefore, we can conclude that organic compounds are basically made up of carbon and hydrogen.

6 0
3 years ago
Mass is 5 grams and the volume is 4.5 grams what is the density
STatiana [176]
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You are given mixture made of 290 grams of water and 14.2 grams of salt. Determine the % by mass of salt in the salt solution.
marishachu [46]

Answer:

Solution is 4.67% by mass of salt

Explanation:

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In this case we have to find out the mass of solution with the data given:

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Answer:

The correct answer is "a quote from Mein Kampf written by Adolf Hitler".

Explanation:

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Answer:

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Explanation:

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3 years ago
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