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dolphi86 [110]
2 years ago
7

What is the oxidation state of each individual carbon atom in c2o42−?

Chemistry
2 answers:
MA_775_DIABLO [31]2 years ago
7 0

Answer:

+3

Explanation:

The oxygen all have a -2 oxidation state. (peroxides are exceptions)

The chemical structure is symmetrical. Both carbon are equivalent.

2 (oxidation state of carbon) + 4 (oxidation state of oxygen) = charge of ion.

2 (oxidation state of carbon) + 4 (-2) = -2

oxidation state of carbon = +3

nika2105 [10]2 years ago
3 0

Answer:

+3

Explanation:

Hello,

In this case, by knowing that the molecule has the following oxidation states structure, one can solve for the carbon's oxidation state via the total ion's charge as shown below:

(C_2^xO_4^{-2})^{2-}\\2x-8=-2\\x=\frac{-2+8}{2}=+3

Therefore, the carbon's oxidation state is +3

Best regards.

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= 67.79 g

Explanation:

The equation for the reaction is;

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Using mole ratio, we get the moles of Cr2O3;

moles Cr2O3 = 0.669 x 2/3

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but molar mass of Cr2O3 is 151.99 g/mol

Hence,

The mass Cr2O3 = 0.446 mol x 151.99 g/mol

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