Which of the following pairs can form a buffer solution? NH3 and HCO-1
C6H5COOH and C6H5COO-1

Apeak with a retention time of 407 s has a width at half-height (w1/2) of 7.6 s. a neighboring peak is eluted 17 s later with a w1/2 of 9.4 s. a compound that is known not to be retained was eluted in 2.5 s. the peaks are not baseline resolved. how many theoretical plates would be needed to achieve a resolution of 1.5?

When you mate two plants together the terms is called? answer it fast as possible plz! i have a test tomorrow!

What are the 4 phases of matter in order of increasing engery content?