Solution Number 1
2
3
Salt amount is
16.0
11.7
7.2
3.4
0.0
Water
(ml)
60
60
60
60
60
Food coloring (drops)
2 Blue
2 Green
2 Yellow
1 Yellow, 1 Red
2 Red
5
Calculations:
1. Determine the density of each solution layer by using the calculation listed below:
Example: Solution #1
Mass = 16.0 g salt + 60 g water = 76.0 g solution
Volume = 60 ml water
Density = Mass/Volume = 76.0 g/60 mL = 1.27 g/mL
Solution #
Density
1
2
3
5
No

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.