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BlackZzzverrR [31]
3 years ago
15

In Fe atom, which subshell experience the lowest effective nuclear charge and are hence the first removed upon ionization?

Chemistry
1 answer:
polet [3.4K]3 years ago
8 0

Answer:

(D) 4s

Explanation:

The electronic configuration of a Fe atom is:

1s² 2s² 2p⁶ 3s² 3p6 3d⁶ 4s².

<u>The subshell located farthest from the nucleus is 4s</u>, that's why it experiences the lowest effective nuclear charge.

This can be seen when looking at the electronic configurations of Fe⁺² and Fe⁺³:

Fe⁺² ⇒ 1s² 2s² 2p⁶ 3s² 3p6 3d⁶.

Fe⁺³ ⇒ 1s² 2s² 2p⁶ 3s² 3p6 3d⁵.

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Using the van der Waals equation, the pressure in a 22.4 L vessel containing 1.00 mol of neon gas at 100 °C is ________ atm. (a
svetoff [14.1K]

Answer:

The answer to your question is        P = 1.357 atm

Explanation:

Data

Volume = 22.4 L

1 mol

temperature = 100°C

a = 0.211 L² atm

b = 0.0171 L/mol

R = 0.082 atmL/mol°K

Convert temperature to °K

Temperature = 100 + 273

                      = 373°K

Formula

               (P + \frac{a}{v^{2}} )(v - b) = RT

Substitution

               (P + \frac{0.211}{22.4})(22.4 - 0.0171) = (0.082)(373)

Simplify

               (P + 0.0094)(22.3829) = 30.586

Solve for P

                           P + 0.0094 = \frac{30.586}{22.3829}

                           P + 0.0094 = 1.366

                                 P = 1.336 - 0.0094

                                P = 1.357 atm

7 0
3 years ago
What is the molarity of a solution that has 4.4 moles BaCl2 in 1.5 Liters of solution?
garik1379 [7]

Answer:

2.9 M

Explanation:

Step 1: Given data

Moles of barium chloride (solute): 4.4 moles

Volume of solution: 1.5 liters

Step 2: Calculate the molarity of barium chloride in the solution

The molarity is a way to quantitatively express the concentration of a solute in a solution. The molarity is equal to the moles of solute divided by the volume, in liters, of solution.

M=\frac{4.4mol}{1.5L} =2.9 M

7 0
2 years ago
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zzz [600]

Answer:

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2 years ago
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Nikitich [7]

Answer:

Option B : burning of wood

Explanation:

Chemical change is a change where a new substance is created like when you will bur wood you get ash this is a new substance, so burning of wood is a chemical change.

 

7 0
3 years ago
If two elements are from the
Vladimir79 [104]

Answer:

The element from Group 13.

Explanation:

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