Consider a solution with a molar absorptivity \(( \epsilon )\) of \( 200 \text{L} \cdot \text{mol}^{-1} \cdot \text{cm}^{-1} \) and path length (l) of 1 cm. If the absorbance (A) measured is 0.5, the concentration c of the solution is _____________.
(Answer up to three decimals)
Enter numerical value using the virtual keypad. Round off where necessary.