Which component of air is remove when air is pass through aqueous sodium hydroxide?

1 answer:

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Answer:
Carbon dioxide (CO₂) of air is remove when air is pass through aqueous sodium hydroxide.

Detail:
This method for capturing CO₂ from air or from any other source was developed by two scientists names as Lackner and Zeman. This methodology is very helpful from stopping CO₂ to enter our atmosphere and result in Global warming. The reaction of NaOH with CO₂ is as follow,

2 NaOH + CO₂ → Na₂CO₃ + H₂O

This is a type of liquid gas reaction and evolves around 5.3 kJ/mol heat.

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Manganese commonly occurs in nature as a mineral. The extraction of manganese from the carbonite mineral rhodochrosite, involves

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This is an incomplete question, here is a complete question.

Manganese commonly occurs in nature as a mineral. The extraction of manganese from the carbonite mineral rhodochrosite, involves a two-step process. In the first step, manganese (II) carbonate and oxygen react to form manganese (IV) oxide and carbon dioxide:

$2MnCO_3(s)+O_2(g)\rightarrow 2MnO_2(s)+2CO_2(g)$

In the second step, manganese (IV) oxide and aluminum react to form manganese and aluminum oxide:

$3MnO_2(s)+4Al(s)\rightarrow 3Mn(s)+2Al_2O_3(s)$

Write the net chemical equation for the production of manganese from manganese (II) carbonate, oxygen and aluminum. Be sure your equation is balanced.

Answer : The net chemical equation for the production of manganese is:

$6MnCO_3(s)+3O_2(g)+8Al(s)\rightarrow 6CO_2(g)+6Mn(s)+4Al_2O_3(s)$