Read the following passage and answer the given questions-One of the chief uses of sodium carbonate has been in the conversion of CaOH2s to concentrated aqueous solution of NaOH which in turn was used in the manufacture of soap- CaOH2s-2Na-aq-CO2-3aq - CaCO3s-2Na-aq-2OH-aq In 1775- in order to gain independence from the importation of natural Na2CO3- the French government offered a prize to anyone who could devise a process to prepare Na2CO3 from NaCl-A more economical process but based on the same principle was given by -

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Preparations and Uses of Sodium Carbonate

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Question

Read the following passage and answer the given questions.

One of the chief uses of sodium carbonate has been in the conversion of $C a (O H)_{2} (s)$ to concentrated aqueous solution of NaOH which in turn was used in the manufacture of soap.

$C a (O H)_{2} (s) + 2 N a^{+} (a q) + C O_{3}^{2 -} (a q) ⇌ C a C O_{3} (s) + 2 N a^{+} (a q) + 2 O H^{-} (a q)$

In 1775, in order to gain independence from the importation of natural $N a_{2} C O_{3}$ , the French government offered a prize to anyone who could devise a process to prepare $N a_{2} C O_{3}$ from NaCl.

A more economical process but based on the same principle was given by :

Solvay

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Leblanc

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Williamson

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Haber

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Solution

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Similar questions

N a O H

C a (O H)_{2}

N a_{2} C O_{3} + C a (O H)_{2} \to 2 N a O H + C a C O_{3} ↓

X - S - Y + 2 N a O H \to X - O - Y + N a_{2} S + H_{2} O

C a C O_{3} \to C a O + C O_{2}

N a_{2} S + C O_{2} + H_{2} O \to N a_{2} C O_{3} + H_{2} S

C a O + H_{2} O \to C a (O H)_{2}

N a_{2} C O_{3} + C a (O H)_{2} \to C a C O_{3} + 2 N a O H

(C a C O_{3})

C a (O H)_{2}

2 N a (s) + 2 H_{2} O \to 2 N a^{+} (a q) + 2 O H^{-} (a q) + H_{2} (g)

N a_{2} C O_{3}

N a C l

5.6

S O_{2}

S O_{2}

H_{2} O_{2}

30

0.04 M N a O H

S O_{2} (g) + H_{2} O_{2} (a q) + 2 O H^{-} (a q) ⟶ S O_{4}^{2 -} (a q) + 2 H_{2} O (l)

22.48

0.024 M H C l

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