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enot [183]
4 years ago
10

How many molecules are there in 0.250 moles of sodium hydroxide

Chemistry
1 answer:
gayaneshka [121]4 years ago
4 0

Answer:  The mass of sodium hydroxide is 10 grams.

Explanation:  the atomic weight: 39.997 g/mol

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The answer is d. an irregular galaxy
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What happens if you don't disconnect the wires in a series circuit?
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the series circuit has <u>one current</u> so if you don't disconnect the wires nothing happens

but if you disconnect the wires in series circuit, the current stop and the current doesn't go to the end

Explanation:

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A home is heated by a system that uses sunlight to warm water in pipes. Which statement best describes this system?
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Consider the SCl2 molecule. (a) What is the electron config- uration of an isolated S atom? (b) What is the electron con- figura
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Answer:

(a) 1s² 2s² 2p⁶ 3s² 3p⁴

(b) 1s² 2s² 2p⁶ 3s² 3p⁵

(c) sp³

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Explanation:

<em>Consider the SCl₂ molecule. </em>

<em>(a) What is the electron configuration of an isolated S atom? </em>

S has 16 electrons. Its electron configuration is 1s² 2s² 2p⁶ 3s² 3p⁴.

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<em>(c) What hybrid orbitals should be constructed on the S atom to make the S-Cl bonds in SCl₂? </em>

SCl₂ has a tetrahedral electronic geometry. Therefore, the orbital 3s hybridizes with the 3 orbitals 3 p to form 4 hybrid orbital sp³.

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No valence orbital remains unhybridized.

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Which solute produces the highest boiling point in a 0.15 m aqueous solution?
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In order to determine the increase in boiling point of a solvent due to the presence of a solute, we use the formula:

ΔT = Kb * m * i

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Simply stated, i is the number of ions that a substance produces when dissolved. Therefore, the solute producing the most ions will be the one causing the greatest change in boiling point temperature.
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