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

### Question

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

### Options

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.