The standard reduction potential for a substance indicates how readily that substance gains electrons relative to other substances at standard conditions. the more positive the reduction potential, the more easily the substance gains electrons. consider the following: ni2+(aq)+2e−→ni(s),cu2+(aq)+2e−→cu( s), e∘red=−0.230 v e∘red=+0.337 v part b what is the standard potential, e∘cell, for this galvanic cell? use the given standard reduction potentials in your calculation as appropriate. express your answer to three decimal places and include the appropriate units.

Write a paragraph at least 10 sentences explaining how rocks are used today in society

Match the mixture with the substance// i really need on this guys (it’s a pic btw)

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.