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rjkz [21]
2 years ago
6

Sodium hydrogen carbonate, on heating, produces sodium carbonate, water and carbon dioxide.

Chemistry
1 answer:
RoseWind [281]2 years ago
3 0

The mass of sodium hydrogen carbonate : 10.5 g

<h3>Further explanation</h3>

Given

1.5 dm' of CO₂

1 mol gas= 24 L at RTP(25 °C, 1 atm)

Required

the mass of sodium hydrogen carbonate

Solution

Decomposition reaction of Sodium hydrogen carbonate :

2 NaHCO₃ (s) ⇒ Na₂ CO₃ (s) + H₂ O(g) + CO₂ (g)

mol CO₂ :

\tt mol=\dfrac{1.5}{24}=0.0625

From the equation, mol ratio of NaHCO₃ : CO₂ (g) = 2 : 1, so mol NaHCO₃ :

\tt 2\times 0.0625=0.125

Mass NaHCO₃(MW=23+1+12+3.16=84 g/mol) :

\tt mass=mol\times MW\\\\mass=0.125\times 84\\\\mass=10.5

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