Macmillan Lear A 74.0 mL portion of a 1.70 M solution is diluted to a total volume of 278 mL. A 139 mL portion of that solution is diluted by adding 169 mL of water. What is the final concentration? Assume the volumes are additive. concentration: M

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A: As per bartleyby guidelines i answered only first question so please don't mind.thanks in advance.

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