Use the periodic table to determine the molar mass of each of the following elements. Use the correct number of significant figures.

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

Respuesta :

Answer:

Potassium (K):   39.10 g/mol

Osmium (Os):   190.23 g/mol

Manganese (Mn):   54.94 g/mol

Explanation:

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The molar mass of the following elements are

Potassium (K): 39.10 g/mol

Osmium (Os): 190.23 g/mol

Manganese (Mn): 54.94 g/mol

What is molar mass?

The molar mass of a substance is grams of one mole of that substance.

It can be calculated by dividing the atomic weight of the element, and the number of atoms found in that element.

Manganese is a transition metal with the atomic number 25.

Potassium is an essential mineral that is an alkali metal and its atomic number is 19.

Osmium is also a transition metal whose atomic number is 76.

Thus, the molar mass of the elements are, Potassium (K): 39.10 g/mol

Osmium (Os): 190.23 g/mol

Manganese (Mn): 54.94 g/mol

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