According to Figure 3, at Sites 1, 2, and 3, the smallest 8180 value of the groundwater in the lake clay was recorded at a depth between:
see Figure 1).
rapped in lake
Ements were
ill) and bedrock
of the top 40 m
of 2 oxygen
werage
O O m and 10 m.
O 10 m and 20 m.
O 20 m and 30 m.
O 30 m and 40 m.

Consider this initial-rate data at a certain temperature for the reaction described by

What must occur for air masses to form fronts

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.