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3 years ago

Its chemistry: isotopes, elements, due Wednesday thanks

Chemistry

1 answer:

bulgar [2K]3 years ago

4 0

Answer:

Science, Science, Science!

Explanation:

Reeeeeeeeeeeeeee

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7. Which statement correctly describes the density of Earth's mantle compared to the density of Earth's

Mice21 [21]

Answer:

1) the mantle is less dense than the core but more dense than the crust.

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3 years ago

Description of horizon a

topjm [15]

I like that game Forza horizon

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3 years ago

Which electron configuration of the 4f energy sublevel is most stable?

umka21 [38]

Answer: both options A and D

Explanation:

Half filled and completely filled orbitals are more stable than any other configuration since they are more symmetrical and energy exchange Occurs readily.

So 4f^7& 4f^14 are more stable

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3 years ago

The Density of pure carbon in Diamond form is 3.52 g/cm^3. How many cubic inches would 23.7 moles of pure diamond occupy?

Vedmedyk [2.9K]

Answer : The volume of pure diamond is $0.493inch^3$

Explanation : Given,

Density of pure carbon in diamond = $3.52g/cm^3$

Moles of pure diamond = 23.7 moles

Molar mass of carbon = 12 g/mol

First we have to calculate the mass of carbon or pure diamond.

$\text{ Mass of carbon}=\text{ Moles of carbon}\times \text{ Molar mass of carbon}$

Molar mass of carbon = 12 g/mol

$\text{ Mass of carbon}=(23.7moles)\times (12g/mole)=284.4g$

Now we have to calculate the volume of carbon or pure diamond.

Formula used:

$Density=\frac{Mass}{Volume}$

Now putting all the given values in this formula, we get:

$3.52g/cm^3=\frac{284.4g}{Volume}$

Volume = $80.8cm^3$

As we know that:

$1cm^3=0.061inch^3$

So,

Volume = $0.061\times 80.8inch^3$

Volume = $0.493inch^3$

Therefore, the volume of pure diamond is $0.493inch^3$

5 0

2 years ago

Does anyone know a website where it solves me these types of problems OR if someone can help me with them?

Brut [27]

Answer:

you can use the idea of molecular masses to calculate easily

7 0

3 years ago