Two students measure and record the volume of the same sample of water in the graduated cylinder shown above. The first student recorded the volume as 16.0 mL and the second student recorded the volume as 16 ml.

H2so4(aq) + mg(s)—> mgso4(aq) +h2(g) which substance is the acid in the reaction?

When the speed of the bottle is 2 m/s, the average maximum height of the beanbag is m.

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.