A tablet contains $0.080\,\text{g}$ of ascorbic acid ($M_r = 176$). What concentration of ascorbic acid is obtained when one tablet is dissolved in $200\,\text{cm}^3$ of water?
- A$9.1 \times 10^{-5}\,\text{mol dm}^{-3}$
- B$4.5 \times 10^{-4}\,\text{mol dm}^{-3}$
- C$9.1 \times 10^{-2}\,\text{mol dm}^{-3}$
- D$2.3 \times 10^{-3}\,\text{mol dm}^{-3}$