Explain how you would prepare 100.0 mL of 0.500 M NaCl solution. Include the appropriate glassware and calculations.

Answer 1

You want how many mols? That's M x L = 0.500M x 0.100 L = 0.05 mols NaCl.
g NaCl = mols x molar mass = 0.05 x 58.5 = about 3 grams NaCl.
Place 3 g (you do it more accurately) in 100 mL volumetric flask, add some water, swirl to dissolve, make to the mark on the flask, stopper and mix.