What is the pH of a 4.7 x 10-9 M HCl solution?​

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?

How far is the region from the equator or control climate

An atom of which element reacts with an atom of hydrogen to form a bond with the greatest degree of polarity ?