1)The theory used to predict shapes of molecules is called 2)When there are only two atoms in a molecule or ion both the electron pair geometry and molecular geometry will be 

3) The shape of a molecule or ion based upon the location of all regions of electron density around a central atom is called 

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?

An experimental procedure requires a 10 ml of acid to be dissolved

If you add 5.00 ml of 0.100 m sodium hydroxide to 50.0 ml of acetate buffer that is 0.100 m in both acetic acid and sodium acetate, what is the ph of the resulting solution? acetic acid: ka = 1.8. x 10-5