Question

What steps would you take in a lab to prepare 1000 mL of a 2 M NaCl solution

Answer 1

The answer to your question is below

Step-by-step explanation:

Data

Volume = 1000 ml

Concentration = 2M

molecule = NaCl

Process

1.- Calculate the number of moles of NaCl

Molarity = moles/Volume

-Solve for volume

moles = Molarity x Volume (liters)

-Substitution

moles = 2 x 1

-Result

moles = 2

2.- Determine the molar mass of NaCl

NaCl = 23 + 35.5 = 58.5 g

3.- Calculate the mass of NaCl to prepare the solution

58.5 g ----------------- 1mol

x ----------------- 2 moles

x = (2 x 58.5) / 1

x = 117g

4.- Weight 117 g of NaCl, place them in a volumetric flask (1 l), and add enough water to prepare the solution.