Consider the reaction represented by the equation. 2NaHCO3(s) (rightarrow) 2Na2CO 3(S) + CO 2(g) +…

Consider the reaction represented by the equation. 2NaHCO3(s) (rightarrow) 2Na2CO 3(S) + CO 2(g) + H2O(g) what volume of carbon (IV)oxide at s.t.p is evolved when 0. 5 moles of NaHCO3 is heated? [Molar volume = 22.4 dm3 at s.t. p]
  • A.
    1.12dm3
  • B.
    2.24dm3
  • C.
    5.6dm3
  • D.
    56.0dm3
Correct Answer: Option C
Explanation

2NaHCO3(s) (rightarrow) 2Na2CO 3(S) + CO 2(g) + H2O(g)
2 moles of 2NaHCO3(s) produces 22.4dm3 of CO2
0.5 moles of 2NaHCO3 will produce (frac{0.5 times 22.4}{2})
= (frac{11.2}{2})
= 5.6 dm3

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