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Triss [41]
3 years ago
10

How many moles are in 1.00 Kg Fe?

Chemistry
1 answer:
Feliz [49]3 years ago
4 0

Answer:

17.9 Moles

Explanation:

In the one-kilogram iron weight there are 1.08·1025 atoms, which corresponds to the chemical amount of approximately 17.9 moles of atoms

To find the number of moles, determine the molar mass of iron. Then divide the given mass by its molar mass, or multiply the given mass by the reciprocal of the molar mass, which is more common.

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Which word is the opposite of boiling
bazaltina [42]

Answer:

freezing

Explanation:

because boiling is when subatomic are really far apart and excited, and freezing is when they are close together and compact, slow, and stable.

5 0
2 years ago
Read 2 more answers
How many moles of Al are necessary to form 45.0 g of AlBr, from this
drek231 [11]

Answer:

0.169 mole of Al

Explanation:

We'll begin by by calculating the number of mole in 45 gof AlBr₃. This can be obtained as follow:

Mass of AlBr₃ = 45 g

Molar mass of AlBr₃ = 27 + (3×80)

= 27 + 240

= 267 g/mol

Mole of AlBr₃ =?

Mole = mass /molar mass

Mole of AlBr₃ = 45 / 267

Mole of AlBr₃ = 0.169 mole

Finally, we shall determine the number of mole of Al needed to produce 45 g (i.e 0.169 mole) of AlBr₃. This can be obtained as illustrated below:

2Al + 3Br₂ —> 2AlBr₃

From the balanced equation above,

2 moles of Al reacted to produce 2 moles of AlBr₃.

Therefore, 0.169 mole of Al will also react to produce 0.169 mole of AlBr₃.

Thus, 0.169 mole of Al is needed for the reaction.

3 0
3 years ago
How does the numbers valence electrons in oxygen compare to the valence electrons in hydrogen?
elena-s [515]

Answer:

Determine the total number of valence electrons in the molecule or ion.

Each H atom (group 1) has 1 valence electron, and the O atom (group 16) has 6 valence electrons, for a total of 8 valence electrons

Explanation:

8 0
2 years ago
Put the following into correct SciNot: 312.5 x 10^20.<br><br>1 point<br><br>Your answer<br><br><br>​
lions [1.4K]
Ans= 3.125*10^22

Solution:
312.5 * 10^20
=3.125 * 10^2 * 10^20
= 3.125 * 10^2+20
= 3.125 *10^22,,
7 0
3 years ago
Use the reaction:
damaskus [11]
The answer is 34.2 mL
5 0
2 years ago
Read 2 more answers
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