A technician has 250 mL of 0.400 M HCl

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Problem

A technician has 250 mL of 0.400 M HCl. After adding enough water to obtain a total volume of 750 mL, what is the new molarity of the HCl solution? (a) 0.100  M0.100\;\text{M} (b) 1.20  M1.20\;\text{M} (c) 0.133  M0.133\;\text{M} (d) 0.200  M0.200\;\text{M}

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