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Talja [164]
4 years ago
11

Which statement is correct about the location of electrons in an atom according to the Quantum mechanical model? A) Electrons ar

e located inside the nucleus. B) Electrons are located in the cloud-like areas around the nucleus. C) Electrons are located in orbits around the nucleus. D) Electrons are located at great distances from the nucleus.
Chemistry
1 answer:
katrin2010 [14]4 years ago
4 0

Answer:

B) Electrons are located in the cloud-like areas around the nucleus.

Explanation:

The quantum mechanical model of the atom does not consider the path through which an electron travels. It rather estimates the probability of where electrons can be found at each energy level.

The region of maximum probability of where an electron is located is sometimes called an electron cloud or orbital. Each orbital of an atom and the electrons accomodated are described completely by a set of four quantum numbers.

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How many grams S03<br> are needed to make 400g<br> H₂So4 in 49%
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160 g of SO3 are needed to make 400 g of 49% H2SO4.

<h3>How many grams of SO3 are required to prepare 400 g of 49% H2SO4?</h3>

The equation of the reaction for the formation of H2SO4 from SO3 is given below as follows:

SO_{3} + H_{2}O \rightarrow H_{2}SO_{4}

1 mole of SO3 produces 1 mole of H2SO4

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80 g of SO3 are required to produce 98 og 100%H2SO4

mass of SO3 required to produce 400 g of 100 %H2SO4 = 80/98 × 400 = 326.5 g of SO3

Mass of SO3 required to produce 49% of 400 g H2SO4 = 326.5 × 49% = 160 g

Therefore, 160 g of SO3 are needed to make 400 g of 49% H2SO4.

Learn more about mass and moles at: brainly.com/question/15374113

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2 years ago
How many atoms of oxygen are in 1.00 mole of Cu(NO3)2 ?
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True

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