Answer to Question #158768 in General Chemistry for jordan watkins

Question

Calculate molar mass 118.936 g/mol

Answer 1

A compound with molar mass of 118.936g/mol is permanganate ions (MnO₄^-).

To calculate its molar mass one should sum the product of atomic mass of each element with its subscript.

Mn=1*54.94=54.94

O₄=4*15.999=63.996

$\therefore$ Molar mass= 63.996+54.94= 118.936g/mol