Which is one of the contributions that supported the development of the Clean Water Act? collecting water samples to confirm the presence of cholera

developing and enacting the Protocol on Water and Health

creating legislation to ease restrictions on rules about water pollution control

detailing the number of countries affected by contaminated water around the world please hurry.

Find the number of moles of argon in 364g of argon.

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.

Chlorophyll a had the molecular formula c55h72mgn4o5 how many atoms are in this molecule