Answers: 3
Chemistry, 22.06.2019 16:50
Answer asap need 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: 1
Chemistry, 22.06.2019 22:10
Determine the ph of 0.10 m nh3 solution. nh3 is a weak base with a kb equal to 1.8 x 10-5 round answer to nearest whole number.
Answers: 1
Chemistry, 23.06.2019 01:00
Which elements are found in glucose, the product of photosynthesis? a. carbon, hydrogen, and oxygen b. carbon and hydrogen c. carbon, nitrogen, and oxygen d. hydrogen, nitrogen, and carbon
Answers: 2
Chemistry, 23.06.2019 01:00
Wind and moving water provide energy. chemical mechanical thermal none of the above
Answers: 1
A balloon with a mass of 5 grams is blown up and popped if all the pieces are weighed what would be...
Mathematics, 26.06.2019 00:00
Social Studies, 26.06.2019 00:00
Mathematics, 26.06.2019 00:00
Mathematics, 26.06.2019 00:00
Mathematics, 26.06.2019 00:00
Geography, 26.06.2019 00:00
Social Studies, 26.06.2019 00:00