Question

If you have 2.0 moles of sodium chloride (NaCl), what is its mass in grams?

Answer 1

117g

Step-by-step explanation:

Given parameters:

Number of moles = 2moles

Unknown:

Mass of NaCl = ?

Solution:

To solve the problem, we need to use the expression below;

Mass of NaCl = number of moles x molar mass

Molar mass of NaCl = 23 + 35.5 = 58.5g/mol

So;

Insert the parameters and solve;

Mass of NaCl = 2 x 58.5 = 117g