Question 2 of 10 Which coordinates best estimate the location of Woonsocket, RI?
50
899 800 75° 70°
D
120° 1990 110 105 100° 9° 90°
V
Woonsockel RI
400
Woonsocket, SD
359
Pocomoke City, MD
300
Bisbee. AZ
Talledega. AL
A. 43° W, 72°S
B. 43 ' N, 72°W

In which of these cases are the two wave points considered to be in phase with each other?

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.

Why is it that 85.48 rounded to two significant figures is 85 and not 86?