The equation given below relate to the manufacture fo sodium carbonate (molecular weight of $N a_{2} C O_{3} = 106$ ).
1. $N a C l + N H_{3} + C O_{2} + H_{2} O \to N a H C O_{3} + N H_{4} C$
2. $2 N a H C O_{3} \to N a_{2} C O_{3} + H_{2} O + C O_{2}$
Equations (1) and (2) are based on the production of 21.2 g of sodium carbonate.
(a) What mass of sodium hydrogen carbonate must be heated to give 21.2 g of sodium carbonate?
(b) To produce the mass of sodium hydrogen carbonate calculated in (a) what volume of carbon dioxide, measured at STP, would be required?

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Solution

a) $2 N a H C O_{3} \to N a_{2} C O_{3}$
2 x 84 =168 106

For obtaining 106g of $N a_{2} C O_{3}$ amount of $N a H C O_{3}$ heated = 168g.
therefore for obtaining 21.2 g of $N a_{2} C O_{3}$ amount of heated =

b) $N a H C O_{3} \to C O_{2}$
84g 22.4 litre

84 g of at S.T.P 22.4 litre of
33.6 g ofat S.T.P = $fraction numerator 22.4 over denominator 84 end fraction cross times 33.6 equals 8.96 L$

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Similar questions

The equations given below relate to the manufacture of sodium carbonate (Molecular weight of Na₂CO₃ = 106).
NaCl + NH₃ + CO₂ + H₂O $\overset{}{\to}$ NaHCO₃ + NH₄Cl
2NaHCO₃ $\overset{}{\to}$ Na₂CO₃ + H₂O + CO₂
Questions (a) and (b) are based on the production of 21.2 g of sodium carbonate.
(a) What mass of sodium hydrogen carbonate must be heated to give 21.2 g of sodium carbonate (Molecular weight of NaHCO₃ = 84)?
(b) To produce the mass of sodium hydrogen carbonate, calculate what volume of carbon dioxide, measured at STP would be required?

The equations given below relate to the manufacture of sodium carbonate (molecular weight of Na₂CO₃ = 106).

Questions based on the production of 21.2 g of sodium carbonate.

To produce 33.6g of sodium hydrogen carbonate what volume of carbon dioxide, measured at STP, would be required?

The equations given below relate to the manufacture of sodium carbonate (molecular weight of Na₂CO₃ = 106).

Questions based on the production of 21.2 g of sodium carbonate.

What mass of sodium hydrogen carbonate must be heated to give 21.2 g of sodium carbonate (Molecular weight of NaHC0₃ = 84)?

Q. How many grams of calcium carbonate are required to produce enough carbon dioxide which can convert

0.5

mole of sodium carbonate into sodium bicarbonate?

C a C O_{3} ⟶ C a O + C O_{2}

N a_{2} C O_{3} + H_{2} O + C O_{2} ⟶ 2 N a H C O_{3}

Q. How many grams of calcium carbonate are required to produce enough carbon dioxide which can convert

0.5

mol of sodium carbonate into sodium bicarbonate?

C a C O_{3} ⟶ C a O + C O_{2}

N a_{2} C O_{3} + H_{2} O + C O_{2} ⟶ 2 N a H C O_{3}

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a) 2NaHCO3→Na2CO3 2 x 84 =168 106 For obtaining 106g of Na2CO3 amount of NaHCO3 heated = 168g. therefore for obtaining 21.2 g of Na2CO3 amount of heated = b) NaHCO3→CO2 ​​​​​​​ 84g 22.4 litre 84 g of at S.T.P 22.4 litre of 33.6 g ofat S.T.P =