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2 years ago

1. 4Na + 02 → 2Na20 find the reaction

Chemistry

1 answer:

Vadim26 [7]2 years ago

6 0

oxidation reaction

Explanation:

2 Na2O → 4 Na + O2

This is an oxidation-reduction (redox) reaction:

4 NaI + 4 e- → 4 Na0(reduction)

2 O-II - 4 e- → 2 O0(oxidation)

Na2O is an oxidizing agent, Na2O is a reducing agent.

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3 years ago

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A 410 L volume of nitrogen gas is cooled from 61 C to -25 C. What is the volume of the nitrogen at the lower temperature if all

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Here, we want to get the volume of the nitrogen gas at the lower temperature

From Charles' law, we know that volume and temperature (in Kelvin) are directly proportion

The mathematical relationship is:

$\frac{V_1}{T_1}\text{ = }\frac{V_2}{T_2}$

Where:

V1 is the initial volume which is 410 L

V2 is the final volume which is unknown

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T2 is the final temperature which we have to convert to Kelvin by adding it to 273.15K : We have that as -25 + 273.15 = 248.15 K

Substituting the values, we have it that:

$\begin{gathered} \frac{410}{334.15}\text{ = }\frac{V_2}{248.15} \\ \\ V_2\text{ = }\frac{248.15\text{ }\times410}{334.15} \\ \\ V_2\text{ = 304.5 L} \end{gathered}$

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Explanation: