A sample of 8 grams of NaOH is dissolved into

599 mL of aqueous 0.250 M NaOH (assume
no volume change). This solution is then
poured into 1.68 gallons of water. (You may
assume that the two volumes can be added.)
What is the concentration of NaOH in the
ﬁnal solution?
Answer in units of M

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