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Sagot :
In the decomposition reaction, the reactants split into products. The mass of carbonic acid that will be produced from the decomposition of sodium bicarbonate is 1.67 gm.
What is mass?
Mass is the product of the moles and the molar mass of the substance. It is the weight present of the substance in reaction and is calculated in grams.
The decomposition reaction can be shown as,
[tex]\rm 2NaHCO_{3} \rightarrow Na_{2}CO_{3} + H_{2}CO_{3}[/tex]
From the reaction, it can be seen that 2 moles of sodium bicarbonate decompose to produce 1 mole each of carbonic acid and sodium carbonate.
Moles of sodium carbonate is calculated to estimate the mass of carbonic acid:
[tex]\begin{aligned} \rm moles &= \rm \dfrac{mass}{molar\; mass}\\\\&= \dfrac{2.86}{105.99}\\\\&= 0.02698\;\rm moles\end{aligned}[/tex]
Mass of carbonic acid is calculated as:
[tex]\begin{aligned} \rm mass &= \rm moles \times molar\; mass\\\\&= 0.02698 \times 62.03 \\\\&= 1.67 \;\rm gm\end{aligned}[/tex]
Therefore, 1.67 gm of carbonic acid will be produced.
Learn more about mass here:
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