4. Write conversion factors for each equality. a. 1m = 1 000 000 cm³
b. 1 in. = 2.54 cm
c. 1 ug = 0.000 001 g
d. 1 Mm = 1 000 000 m

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.

What prefix multiplier is appropriate for reporting a measurement of 5.57 ×10−5 m?

How can nonpolar molecule contain polar covalent bonds