A sample of hydrogen gas is contained in a balloon. the volume of the ballon is 2.15 L at 288K. the temperature is changed until the volume if the balloon is 3.25L. what is the new temperature of the gas in absolute temperature A. 162k
B. 435k
C. 848K
D. 1121k

Which diagram shows the correct way to represent an ionic compound of magnesium oxide?

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.

Use the periodic table to find the molar mass of each element. molar mass h = g/mol molar mass s = g/mol molar mass o = g/mol