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lilavasa [31]
3 years ago
5

When an atom in a reactant loses electrons, what happens to its oxidation number?

Chemistry
2 answers:
Anton [14]3 years ago
5 0
Its oxidation number increases. When an atom loses electrons, there are now more protons then electrons so its oxidation number increases.
Hope this helps
Marta_Voda [28]3 years ago
4 0

Its oxidation number increases. When an atom loses electrons, there are now more protons then electrons so its oxidation number increases.

Explanation:

The oxidation product of an element signifies the hypothetical charge of an atom in a compound. It is hypothetical because, in the context of a compound, the elements may not absolutely be ionic. When the number of electrons associated with an atom changes, its oxidation number also changes. When an element loses an electron, its oxidation number rises.

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A solution of bleach has about 1.5 g of NaOCl dissolved in 220 mL of solution. What is the molarity?
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Answer:

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Explanation:

Molarity of a substance , is the number of moles present in a liter of solution .

M = n / V

M = molarity ( unit = mol / L or M )

V = volume of solution in liter ( unit = L ),  

n = moles of solute ( unit = mol ),  

Moles is denoted by given mass divided by the molecular mass ,

Hence ,

n = w / m

n = moles ,

w = given mass ,

m = molecular mass .

From the data of the question , it is given that ,

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Since ,

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V = 0.220 L

As we known , the mass of bleach NaOCl is ,

m = 74.44 g/mol

from the above equation , moles can be calculated as -

n = w / m

n = 1.5g / 74.44 g/mol

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Molarity of the solution is calculated as ,

M = n / V

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