Respuesta :

Neetoo

Answer:

Number of moles =  2.1 mol

Explanation:

Given data:

Mass of molybdenum(vi) oxide = 300 g

Number of moles = ?

Solution:

Formula:

Number of moles = mass/ molar mass

Molar mass of molybdenum(vi) oxide  = 143.94 g/mol

Number of moles = mass/ molar mass

Number of moles = 300 g/ 143.94 g/mol

Number of moles =  2.1 mol