The mobility of a univalent ion in aqueous solution is $6.00 \times 10^{-8} \mathrm{m}^{2} \mathrm{s}^{-1} \mathrm{V}^{-1}$ at 300 K . Its diffusion coefficient at 300 K is $\mathrm{X} \times 10^{-9} \mathrm{m}^{2} \mathrm{s}^{-1}$. The value of X is ____ (up to two decimal places)
Answer
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