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A chemist makes 860. mL of potassium dichromate (K 2 Cr 2 O 7 ) working solution by adding distilled water to 250.mL of a

A chemist makes 860. mL of potassium dichromate (K 2 Cr 2 O 7 ) working solution by adding distilled water to 250.mL of a 0.229 mol/L stock solution of potassium dichromate in water.

Calculate the concentration of the chemist’s working solution. Round your answer to 3 significant digits.

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