A0.1-l unbuffered solution needs the ph adjusted from 6.8 to 3. how many microliters of a 6 molar hcl solution need to be added to adjust the ph? report your answer to four decimal places. for this question: assume the volume of hcl being added is negligible and the total volume of the solution does not change. the volume of the solution is *not* 1 l like it was in the practice pools. the question requests your answer be reported in μl (microliters)

answer; /// the amount of material dissolved in a measure of liquid(concentration) the above statement is (true); /// good luck

answer; i believe that the correct answer is (a) potassium(k)

a saline water is fed to a reverse osmosis unit at flow rate o rotameter connected to reject (retentate) line reads 8 installed in reject and permeate line reads 15.2 milli siemens/cm and 300 micro siemens/com respectively.

it's c (engineer's do their work with mechanical stuff not on any living being)