Chemistry, 10.08.2019 03:10 charlieh3872
Asolution is prepared by dissolving 0.23 mol of hydrocyanic acid and 0.27 mol of sodium cyanide in water sufficient to yield 1.00 l of solution. the addition of 0.05 mol of hcl to this buffer solution causes the ph to drop slightly. the ph does not decrease drastically because the hcl reacts with the present in the buffer solution. the ka of hydrocyanic acid is 4.9 × 10-10.
Answers: 2
Chemistry, 21.06.2019 23:30, ashleyjaslin
Calculate the expected ph values of the buffer systems from the experiments (a, b,c, d), using the henderson- hasselbalch equation, ph-pka+log[a-]/[ha]. use for pka values carbonic acid= 6.37, and acetic acid= 4.75.
Answers: 2
Asolution is prepared by dissolving 0.23 mol of hydrocyanic acid and 0.27 mol of sodium cyanide in w...
Mathematics, 03.05.2021 03:00
Mathematics, 03.05.2021 03:00
Mathematics, 03.05.2021 03:00
Mathematics, 03.05.2021 03:00
Mathematics, 03.05.2021 03:00
Mathematics, 03.05.2021 03:00