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Svetlanka [38]
3 years ago
10

How many moles are in 2.8x10^23 atoms of Calcium?

Chemistry
1 answer:
Zielflug [23.3K]3 years ago
8 0

Answer: 1 mole ➡️ 6.022×10²³ atoms of si.

X mole ➡️ 2.8×10²⁴ atoms of si.

X = 2.8×10×10²³/6.022×10²³

= 28/6.022

= 4.65 moles.

Explanation:

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A 1.26 m aqueous solution of an ionic compound with the formula mx2 has a boiling point of 101.63 ∘c. part a calculate the van't
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Hi. I need help with this
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Factors that determine ionization energy:

  • Electronic Repulsion - If the electronic density decreases, the ionization energy with increase and vice versa. If an electron gets released, it decreases the electronic repulsion. This makes releasing another electron harder than the first on unless the electron that is being released comes from another energetic level.
  • # Of Energy Levels - The more energy cores that get filled up, the more ionization levels decrease. When we see the energy levels go from top to bottom, the ionization also go from most to least. This is why ionization occurs on the highest level.
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Factors that determine atomic volume:

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  • How many energy levels carry electrons (electrons in outer energy level)

Best of Luck!

4 0
3 years ago
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