Home » Past Questions » Chemistry » The concentration of a solution obtained by dissolving 0.53g of pure anhydrous N...

The concentration of a solution obtained by dissolving 0.53g of pure anhydrous N...

The concentration of a solution obtained by dissolving 0.53g of pure anhydrous Na\(_2\)CO\(_3\) in water to make 250 cm\(^3\) of solution is

A) 2.0 \(\times\) 10-5 moldm\(^{-3}\)

B) 2.1 g dm\(^{-3}\)

C) 2.0 \(\times\) 10-2 moldm\(^{-3}\)

D) 5.0 \(\times\) 10-3 moldm\(^{-3}\)

The correct answer is C.

Discussion