Achromatography column has a stationary phase volume that is 0.120 times the volume of the mobile phase. find the retention factor, k , for solutes with each of the given partition coefficients, k . a) k=2.8 b) k=22

Covalent bonds generally form when the bonded elements have a difference in electronegativity less than 1.5. subtract the electronegativities for the following pairs of elements and predict whether they form a covalent bond. electronegativity difference of c and c: ionic covalent electronegativity difference of mg and cl: ionic covalent