Question

What is the mass of 4.50 moles of magnesium chloride, MgCl2?

Answer 1

427.5g

Step-by-step explanation:

Given parameters:

Number of moles = 4.5moles

Unknown:

Mass of MgCl₂ = ?

Solution:

To solve this problem;

Mass = number of moles x molar mass

Molar mass of MgCl₂ = 24 + 2(35.5) = 95g/mol

Mass = 4.5 x 95 = 427.5g