Two plastics that are targeted for recycling from household waste are pete (1) ( plastic soft drink bottles/ peanut butter and salad dressing containers) and hdpe (2) ( milk, water, juice containers/ plastic grocery bags). one of the problems of recycling such materials is separating them. suppose you have been hired to set up a process for separating large quantities (many tons) of waste plastic that is a mixture of pete and hdpe. describe how you might perform this separation. any would be much appreciated!

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.