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Shkiper50 [21]
3 years ago
5

In what order do electrons fill orbitals within the 3p sublevel? Electrons don’t fill orbitals; protons and neutrons fill orbita

ls. They double up first, then move on to the next orbital when the first is full. They spread out, waiting until each orbital has one electron before doubling up. They fill the orbitals in random order; you cannot predict exactly where they’ll be
Chemistry
1 answer:
lorasvet [3.4K]3 years ago
4 0

 The order  do electron fill  orbitals within the 3p sublevel  is that they spread  out, waiting  until each orbital  has one electron before  doubling  up.


<u><em>Explanation</em></u>

<u> </u> According    to   hund's  rule  every orbital in a   subshell  is singly  occupied  with  one  electron before  any one orbital  is  doubly  occupied,and  all electrons  in   singly occupied  orbital have the same spin.

when every orbital  in a subshell is   singly  occupied by electrons it is then  doubled, and the two electrons  in same orbital  have  opposite spins


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A chemist adds of a aluminum chloride solution to a reaction flask. Calculate the mass in grams of aluminum chloride the chemist
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Answer:

10.8 g

Explanation:

<em>A chemist adds 480.0 mL of a 0.169 mol/L aluminum chloride solution to a reaction flask. Calculate the mass in grams of aluminum chloride the chemist has added to the flask. Round your answer to 3 significant digits.</em>

Step 1: Given data

  • Volume of the solution: 480.0 mL
  • Concentration of the aluminum chloride solution: 0.169 mol/L

Step 2: Calculate the moles of aluminum chloride in the solution

We will multiply the volume of the solution by the molarity.

0.4800 L × 0.169 mol/L = 0.0811 mol

Step 3: Calculate the mass corresponding to 0.0811 moles of AlCl₃

The molar mass of AlCl₃ is 133.34 g/mol.

0.0811 mol × 133.34 g/mol = 10.8 g

3 0
3 years ago
A student compares the boiling point of substances having different intermolecular forces. which dependent variable did the stud
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A student compares the boiling point of substances having different intermolecular forces. <u>Boiling points of various substances</u> is the dependent variable that student most likely use.

<h3>Does the nature of intermolecular forces present in different substance affect their boiling points?</h3>

The boiling point of a substance is proportional to the strength of its intermolecular forces, the higher the boiling point, the stronger the intermolecular forces. We can compare the strengths of intermolecular forces by comparing the boiling points of different substances.

<h3>What properties are affected by intermolecular forces?</h3>

Intermolecular forces are measured by boiling points.

Intermolecular forces increase as bond polarization increases.

Ionic > hydrogen bonding > dipole dipole > dispersion is the order of the strength of intermolecular forces (and thus their impact on boiling points).

<h3>How can you determine strong and weak intermolecular forces?</h3>

Substances with strong intermolecular forces are very attracted to one another and are held together tightly. These substances require a great deal of energy to separate, whereas substances with weak intermolecular forces are held together very loosely and have weak interactions.

Learn more about intermolecular forces:

<u><em>brainly.com/question/13479228</em></u>

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7 0
1 year ago
You use an analytical balance to measure the mass of a weigh boat and record a mass of 1.5624 g. You then add some NaHCO3 to the
never [62]

Answer:

The minimum number of grams of acetic acid that we would need to fully react with your NaHCO3, is 0.263 grams.

Explanation:

Step 1: Data given

Mass weigh boat = 1.5624 grams

Mass of boat + NaHCO3 = 1.92...

<u>Step 2:</u> Calculate ranges

The minimum possible mass of boat + NaHCO3 = 1.9200g  

Minimum mass of NaHCO3 = 1.9200g - 1.5624g = 0.3576g  

The maximum possible mass of boat + NaHCO3 = 1.9299g  

Maximum mass of NaHCO3 = 1.9299g - 1.5624g = 0.3675g  

What is the minimum mass of acetic acid that must be used to  react with all the NaHCO3 possible in the boat:  

This means what mass of CH3COOH reacts with 0.3675g NaHCO3  

NaHCO3 + CH3COOH → CH3COONa + CO2 + H2O

1 mole of NaHCO3 consumed, needs 1 mole CH3COOH to produce 1 mole of CH3COONa, 1 mole CO2 and 1 mole H2O

<u>Step 3: </u>Calculate moles NaHCO3

Moles NaHCO3 = mass NaHCO3 / Molar mass NaHCO3

moles NaHCO3 = 0.3675 grams / 84g/mol

moles NaHCO3 = 0.004375 moles

Since 1 mole of NaHCO3 consumed, needs 1 mole CH3COOH

For 0.004375 moles NaHCO3, we need 0.004375 moles CH3COOH

<u>Step 4:</u> Calculate mass of CH3COOH

mass of CH3COOH = moles CH3COOH * Molar mass CH3COOH

mass of CH3COOH = 0.004375 moles * 60.05 g/mol

mass CH3COOH = 0.2627 grams ≈ 0.263 grams

The minimum number of grams of acetic acid that we would need to fully react with your NaHCO3, is 0.263 grams.

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Which element would you expect to have the largest radius based on the Periodic Table?
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Answer:

Lead

Explanation:

As you move down the periodic table, the elements get larger and gain additional electron shells, increasing the radius.  In order, they are on the table as Chlorine, Selenium, Lead.

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4 years ago
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Irina18 [472]

Explanation:

Plutonium

The symbol is Pu and it exists in the solid state.

The complete chemical formular is given as; Pu(s)

Iodine

The symbol is I and it exists exists as a lustrous, purple-black non-metallic solid at standard conditions

The complete chemical formular is given as; I(s)

Helium

The symbol is He and it exists in the gaseous state.

Te complete chemical formular is given as; He(g)

6 0
3 years ago
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