In the Solvay process for producing sodium carbonate N a 2 CO 3- the following reactions occur in sequence- NH 3- CO 2- H 2 O - NH 4 HCO 3NH 4 HCO 3- NaCl - NH 4 Cl - N aHCO 32 N aHCO 3- Na 2 CO 3- H 2 O - CO 2How much of N a 2 CO 3 would be produced per kg of NH 3 used if the process were 100 - efficient- A- 3-12 kgB- 1-00 kgC- 2-00 kgD- 0-56 kg

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Stoichiometric Calculations

In the Solvay...

Question

In the Solvay process for producing sodium carbonate $(N a_{2} C O_{3})$ , the following reactions occur in sequence.
$N H_{3} + C O_{2} + H_{2} O \to N H_{4} H C O_{3}$
$N H_{4} H C O_{3} + N a C l \to N H_{4} C l + N a H C O_{3}$
$2 N a H C O_{3} Δ - \to N a_{2} C O_{3} + H_{2} O + C O_{2}$
How much of $N a_{2} C O_{3}$ would be produced per kg of $N H_{3}$ used if the process were 100% efficient?

3.12 kg

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1.00 kg

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2.00 kg

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0.56 kg

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(N a_{2} C O_{3})

N H_{3} + C O_{2} + H_{2} O \to N H_{4} H C O_{3}

N H_{4} H C O_{3} + N a C l \to N H_{4} C l + N a H C O_{3}

2 N a H C O_{3} Δ - \to N a_{2} C O_{3} + H_{2} O + C O_{2}

N a_{2} C O_{3}

N H_{3}

A

N H_{4} C l

D

C O_{2}

B

C

+ N a O H \to N a C l + N H_{3} + H_{2} O

N H_{3} + C O_{2} + H_{2} O \to (B)

+ N a C l \to (C) + N H_{4} C l

\to N a_{2} C O_{3} + H_{2} O + (D)

X

N a C l + H_{2} O + C O_{2} + N H_{3}

\to

N H_{4} C l + X

X

(A), (B), (C)

(D)

(A) + N a O H H e a t ⟶ N a C l + N H_{3} + H_{2} O

N H_{3} + C O_{2} + H_{2} O ⟶ (B)

(B) + N a C l ⟶ (C) + N H_{4} C l

(C) H e a t ⟶ N a_{2} C O_{3} + H_{2} O + (D)

2 N a C l + C a C O_{3} \to N a_{2} C O_{3} + C a C l_{2}

C a C O_{3} Δ - \to [A] + [B]

N a C l + N H_{3} + [B] + H_{2} O \to [C] + [D]

2 [C] \to N a_{2} C O_{3} + H_{2} O + [B]

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