An intermediate used in the synthesis of perfumes is valeric acid, also called pentanoic acid. The pKa of pentanoic acid is 4.84 at 25 C. What is the final pH if 8.00 mL of 0.100 M HCL is added to 75.0 mL of the buffered solution?
2007-04-03 05:32:08 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
You haven't given any details of the buffer solution.
2007-04-04 00:43:54 · answer #1 · answered by Gervald F 7 · 0⤊ 0⤋
you could desire to verify what proportion moles you have. what's the reaction happening? (NH4+) + (OH-) -> (NH3) considering the fact which you initiate with a base (ammonia) and are including some acid. Your pH ought to drop from the unique pH. So, initially you had 2.0L of .200M NH3. what proportion moles is that? .200M = .2 hundred moles / a million L So 2.0L * (.2 hundred moles / a million L) = .4 hundred moles NH3 Your pH tells you techniques many moles of OH- you have. additionally, submit to in innovations that that's a susceptible acid/base pair. there is one extra step, yet i do no longer pick to offer all of it to you. desire it became adequate to get you kick began.
2016-12-15 14:59:05 · answer #2 · answered by Anonymous · 0⤊ 0⤋