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ankoles [38]
2 years ago
8

Calculate the number of moles of NaOH contained in 250. mL of a 0.05M solution.

Chemistry
2 answers:
Katena32 [7]2 years ago
4 0

Answer:

.0125 moles

Explanation:

Molarity = moles/volume

.05 M = moles/.250L

.0125 = moles

topjm [15]2 years ago
3 0

Answer:

https://newshamchem.weebly.com/uploads/2/2/0/3/22035226/molarity_&_worksheet_answer.pdf

question 9.

Explanation:

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The question requires us to explain the differences in radii of neutral atoms, cations and anions.

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While a neutral atom presents the same number of protons and electrons, a cation is an ion with positive charge, which means it has lost one or more electrons. In a cation, the balance between protons and electrons doesn't exist anymore: now, there is more positive than negative charge (more protons than electrons), and the overall attractive force that the protons have for the electrons is increased. As a result, the electrons stay closer to the nucleus and the radius of a cation is smaller than the neutral atom from which it was derived.

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