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Oksi-84 [34.3K]
3 years ago
5

_HNO3+ Fe+2

Chemistry
1 answer:
ale4655 [162]3 years ago
4 0

Answer: The coefficient for water after the equation is balanced is 2.

Explanation:

The balanced chemical equation must have same charge and same number of atoms on both sides of the equation.

As the given reaction is a redox recation occuring in acidic medium.

HNO_3+3Fe^{2+}+3H^+\rightarrow NO+3Fe^{3+}+2H_2O

The coefficient for water will be 2 after the equation is balanced.

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Answer:

75603.86473 K

Explanation:

Given that:

The 1st excited electronic energy level of He atom = 3.13 × 10⁻¹⁸  J

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The formula for estimating the ratio of population in 1st excited state to the ground state can be computed as:

\dfrac{N_2}{N_1} = e ^{^{-\dfrac{(E_2-E_1)}{KT}}} =   e ^{^{-\dfrac{(\Delta E)}{KT}}}

From the above equation:

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Thus:

0.05 =e^{^{ -\dfrac{3.13 \times 10^{-18} \ J}{1.38\times 10^{-23 \ J/K}\times T}}}

In (0.05) = { -\dfrac{3.13 \times 10^{-18} \ J}{1.38\times 10^{-23 \ J/K}\times T}}}

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T =  \dfrac{-226811.5942}{-3.00 }

T = 75603.86473 K

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Which of the following statements correctly distinguishes between an acidic and a basic solution? . A. An acidic solution contai
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