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9966 [12]
3 years ago
5

Given 50g of sodium how many moles do you have? ​

Chemistry
1 answer:
Anastaziya [24]3 years ago
5 0

Answer:

Amount of Na = 2.17moles

Explanation:

Mass of Na = 50g

Molar mass of Na = 23g/mol

Amount of mole = mass/molar mass

Amount of mole = 50/23

Amount of mole = 2.17moles

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3 years ago
How many molecules are in 3.50 moles of H2O<br>​
Debora [2.8K]

Answer:

2.11 x 10²⁴ molecules.

Explanation:

  • <em>It is known that every 1.0 mole of a molecule contains Avogadro's number of molecules (NA = 6.022 x 10²³).</em>

<em><u>Using cross multiplication:</u></em>

1.0 mole of H₂O contains → 6.022 x 10²³ molecules.

3.5 mole of H₂O contains → ??? molecules.

∴ 3.5 mole of H₂O contain = (3.5 mol)(6.022 x 10²³) = 2.11 x 10²⁴ molecules.

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3 years ago
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Answer: 100.0g

Explanation:

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2 years ago
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Alexus [3.1K]

Answer:

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8 0
3 years ago
Describe the electrons in an atom of carbon in the ground state. Your response must
zepelin [54]

Based on the information given, it should be noted that the ground-state electron configuration of carbon is 1s2 2s2 2p2.

<h3>What is an electron?</h3>

Electrons are simply the subatomic particles which orbit the nucleus of an atom.

The arrangement of electrons in the atomic orbitals of an atom is known as the electron configuration. This can be determined by using a periodic table.

It should be noted that carbon is the sixth element with a total of 6 electrons in the periodic table. Thus, the atomic number Z = 6.

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8 0
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