A gas in a cylinder with a moveable piston has an initial volume of 88.4 mL and is heated from 37 °C to 163 °C. What is the volume of the gas in milliliters (mL) reported to 4 sig figs? [Note: Do not forget to convert the temperature to Kelvin scale using K = °C + 273.15]

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.