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Problem: Suppose it took 11.5 mL of 0.112 M NaOH solution to neutralize the acid solution and that you used 0.592 g of green crystals to prepare the original 50.0 mL solution (of which only 10.00 mL is analyzed for Co content at a time).

Calculate the mass of cobalt in the sample, the percent cobalt and the percent error.

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