Palladium forms three different compounds with sulfur. The mass of sulfur per gram of palladium in each compound is listed below. Show that these masses are consistent with the law of multiple proportions.

Solution 36E Atomic weight of an element is determined by taking ave rage of atomic masses nd respective relative abundance value of its isotopes. The formula for atomic weight is : Now let’s calculate the atomic weight of rubidium(Rb) : Rubidium naturally exists as two isotopes - rubidium-85 and rubidium-87. Given, Atomic mass of Rubidium-85 = 84.9118 amu with abundance of 7 2.15% Atomic mass of Rubidium-87 = 86.9092 amu with abundance of 27.85%. Now using the formula we calculate the atomic weight: =(84.9118 amu)(0.7215)+ (86.9092 amu)(0.2785) [abundance is written in decimals] = 61.26 amu + 24.20 amu = 85.46 amu. Hence, the atomic weight of the rubidium is 85.46 amu