What is the main use of dimensional analysis? O increase the accuracy of your calculations
O convert between units
O make science easy
O Count the significant figures

What is the temperature of one mole of helium gas at stp?

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.

Which description best characterizes the motion of particles in a solid?