32) home and garden ph indicators beets very basic solution changes from red to purple. blueberries blue ph 2.8-3.2. turn red as solution becomes more acidic. cherries red in acidic solution; turns blue/purple in basic solution. curry powder curry's pigment curcumin changes from yellow at ph 7.4 to red at ph 8.6. beet juice is added to a unknown solution and changes color from red to purple. curry powder, added to the same solution, turns a deep red color. what can you tell about the hydrogen/hydroxide ion concentration of the unknown liquid?

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.