How many mols NaOH in 5.61? That's mols = grams/molar mass = ?
How many molos in the solution. That is mols = M x L = ?
Total mols NaOH = sum of the two above = ?
M = mols/L solution. You know mols. Convert 2.16 gallons to L and add to the 627 for total volume.
A sample of 5.61 grams of NaOH is dissolved
into 627 mL of aqueous 0.250 M NaOH (assume
no volume change). This solution is
then poured into 2.16 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.
1 answer
1 answer