What do I have to do for both questions
...
Answers: 3
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 19:00
What information does a complete ionic equation give that the balanced equation doesn’t show?
Answers: 1
Chemistry, 23.06.2019 01:00
Which process results in the release of energy stored in the products of photosynthesis? a. polymer synthesis b. depolymerization c. digestion d. cellular respiration
Answers: 1
Mathematics, 09.06.2020 22:57
Mathematics, 09.06.2020 22:57
Mathematics, 09.06.2020 22:57
Mathematics, 09.06.2020 22:57
History, 09.06.2020 22:57
English, 09.06.2020 22:57
English, 09.06.2020 22:57
Biology, 09.06.2020 22:57
Biology, 09.06.2020 22:57