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Standard XII

Chemistry

Stoichiometric Calculations

How many gram...

Question

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

50

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100

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25

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60

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Solution

The correct option is A $50$
The reactions are given below:
$C a C O_{3} ⟶ C a O + C O_{2}$
$1$ $1$ $1$
$0.5$ mol $0.5$ mol
$50$ g $50$ g
$N a_{2} C O_{3} + H_{2} O + C O_{2} ⟶ 2 N a H C O_{3}$
$1$ $1$ $2$
$0.5$ mol $0.5$ mol $1$ mol
So, $50$ g of calcium carbonate is required to produce enough carbon dioxide.

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Similar questions

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. What weight of

C a C O_{3}

must be decomposed to produce the sufficient quantity of carbon dioxide to convert 21.2 kg of

N a_{2} C O_{3}

completely into

N a H C O_{3}

[Atomic mass

N a = 23

C a = 40

]

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

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

Q. What weight of

C a C O_{3}

must be decomposed to produce a sufficient quantity of carbon dioxide to convert

21.2 g

N a_{2} C O_{3}

completely into

N a H C O_{3}

. (Molar mass of

N a = 23 g/mol, C a = 40 g/mol

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

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

Q. Sodium bicarbonate breaks down on heating:

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

(Atomic mass of

N a = 23, C = 12, H = 1, O = 16)

i) How many moles of sodium bi carbonate are there in the equation?
ii) What is the mass of sodium bicarbonate used in this equation?
iii) How many moles of carbon dioxide are there in this equation?

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?

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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?CaCO3⟶CaO+CO2Na2CO3+H2O+CO2⟶2NaHCO3

The correct option is A 50The reactions are given below:CaCO3⟶CaO+CO2 1 1 1 0.5 mol 0.5 mol 50 g 50 gNa2CO3+H2O+CO2⟶2NaHCO3 1 1 2 0.5 mol 0.5 mol 1 molSo, 50 g of calcium carbonate is required to produce enough carbon dioxide.

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