Answers: 2
Chemistry, 22.06.2019 18:00
Answer asap need to be answered by wednesday morning explain how a buffer works, using an ethanoic acid / sodium ethanoate system including how the system resists changes in ph upon addition of a small amount of base and upon addition of a small amount of acid respectively. include the following calculations in your i. calculate the ph of a solution made by mixing 25cm3 0.1m ch3cooh and 40cm3 0.1m ch3coo-na+. [ka = 1.74 x 10-5 m] ii. calculate the ph following the addition of a 10cm3 portion of 0.08 m naoh to 500cm3 of this buffer solution. iii. calculate the ph following the addition of a 10cm3 portion of 0.08 m hcl to 200cm3 of the original buffer solution.
Answers: 3
Chemistry, 22.06.2019 21:00
As we move from left to right across the periodic table, what is the general trend? a) atomic radii increase. b) electronegavitiy decreases. c) nuclear shielding increases. d) metallic character decreases.
Answers: 1
How can your knowledge about solutions help to improve health or the quality of life? In what practi...
Mathematics, 03.11.2020 02:40
Mathematics, 03.11.2020 02:40
Mathematics, 03.11.2020 02:40
History, 03.11.2020 02:40
Mathematics, 03.11.2020 02:40
History, 03.11.2020 02:40
English, 03.11.2020 02:40
Social Studies, 03.11.2020 02:40
Mathematics, 03.11.2020 02:40
Mathematics, 03.11.2020 02:40
Spanish, 03.11.2020 02:40