18. consider the square planar coordination complex ion, [pt(nh3)(ci)3] identify the ligands, and their charges a. b. what is the ion charge of platinum in this complex ion? what is the chemical formula for a magnesium salt of this complex ion? c.

What is the relationship of air masses and the temperature of oceans?

The content of manganese (mn) in steel was determined spectrophotometrically and with the use of the standard addition method. an unknown sample of mn from a digested steel sample gave an absorbance of 0.185 when analyzed spectrophotometrically. when 5.00 ml of solution containing 95.5 ppm mn was added to 50.0 ml of the unknown steel solution (digested sample), the absorbance was 0.248. calculate the concentration, in parts-per-million (ppm), of mn in the digested steel sample solution.

How does electronegativity changes as we move from left to right across a period