When nahco3 is heated above 270 °c, it decomposes to na2co3(s), h2o(g), and co2(g). calculate the mass (in grams) of co2 produced from the decomposition of 25.0 g nahco3.

The decomposition of 25.0 g NaHCO₃ produces 6.55 g CO₂

Explanation:

Hi there!

Let´s write the equation:

2NaHCO₃ → Na₂CO₃ + H₂O + CO₂

2 moles of NaHCO₃ produce 1 mol of CO₂

The molar mass of NaHCO₃ is 84.007 g/mol

The molar mass of CO₂ is 44.01 g/mol

2 · 84.007 g NaHCO₃ (2 mol) produce 44.01 g CO₂ (1 mol)

Then 25.0 g NaHCO₃ will produce:

2 · 84.007 g NaHCO₃ ⇒ 44.01 g CO₂

25. 0 g NaHCO₃          ⇒  25 · 44.01 / 2 · 84.007 = 6.55 g CO₂

The decomposition of 25.0 g NaHCO₃ produces 6.55 g CO₂

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