5'- CTC GAG CGA AG was obtained as a dry solid. The sample was dissolved in 1000 ul of deionized water and mixed well. Ten microliters of the dissolved sample was then transferred to a new sample tube and mixed with 990 ul of water, The dilute sample had A260 = 0.156. What was tthe concentration of the original sample (the solid dissolved in 1000 ul of deionized water)r

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