use the periodic table to determine the molar mass of each of the following elements. each answer must have…

use the periodic table to determine the molar mass of each of the following elements. each answer must have 2 decimal places.\npotassium (k): g/mol\nosmium (os): g/mol\nmanganese (mn): g/mol\ndone

use the periodic table to determine the molar mass of each of the following elements. each answer must have 2 decimal places.\npotassium (k): g/mol\nosmium (os): g/mol\nmanganese (mn): g/mol\ndone

Answer

Explanation:

Step1: Find potassium on periodic table

The molar - mass of potassium (K) from the periodic table is 39.0983 g/mol. Rounding to 2 decimal places, it is 39.10 g/mol.

Step2: Find osmium on periodic table

The molar - mass of osmium (Os) from the periodic table is 190.23 g/mol.

Step3: Find manganese on periodic table

The molar - mass of manganese (Mn) from the periodic table is 54.938045 g/mol. Rounding to 2 decimal places, it is 54.94 g/mol.

Answer:

Potassium (K): 39.10 g/mol Osmium (Os): 190.23 g/mol Manganese (Mn): 54.94 g/mol