31mL of a 0.086 M solution of HCl is diluted up to 225mL. What is the [H3O+] of this diluted solution?

3 hours because it is a decent distance.

the old alchemists made significant contributions to science even though there starting premises were off a bit. their conclusions after failure would steer them into better directions for investigation. science is no more than close observation and the initial mistakes result in rethinking and retrying experiments.

i think it's c. i'm not sure but i think so.