A. 0.5 mol dm³
B. 0.6 mol dm³
C. 0.2 mol dm³
D. 0.4 mol dm³
Correct Answer:
Option A – 0.5 mol dm³
25cm³ of a 0.2 mol dm³ solution of Na2CO3 requires 20 cm³ of a solution of HCl for neutralization. The concentration of the HCl solution is?
![Consider the reaction represented by the equation: 2NaHCO3 → Na2CO3 + H2O + CO2. What is the mass of sodium trioxocarbonate (lV) produced by the complete decomposition of 33.6 g of sodium hydrogen trioxocarbonate (IV)? [NaHCO3 = 84, Na2CO3 = 106]](https://erudites.ng/wp-content/plugins/contextual-related-posts/default.png "Consider the reaction represented by the equation: 2NaHCO3 → Na2CO3 + H2O + CO2. What is the mass of sodium trioxocarbonate (lV) produced by the complete decomposition of 33.6 g of sodium hydrogen trioxocarbonate (IV)? [NaHCO3 = 84, Na2CO3 = 106]")
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