What are groups on the periodic table? How many are there?

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.

Δu of , in kj/kg, as it isto k, (a)as a of , (b) at , (c) at .

Which of the following will cause an increase in the acceleration of an object? increase force decrease force increase mass decrease mass