you need to prepare a 4 M concentrated solution for a lab and only need 500 mL of total solution. If you use enough water to bring the volume to 500 mL how many grams of sodium’s chloride would you

Question

need to dissolve in the solution?

Answer 1

Calculate the moles of Sodium chloride required to prepare a solution of molarity 4 and volume 0.5 liters that is 2 moles.

Multiply the number of moles with the molar mass of Sodium chloride which is approximately 58.5 g/mo.''

Then your answer is 117 grams.

Molarity = moles/liters

Moles = Molarity X liters

2 moles of NaCl 58.5 grams NaCl

1 mole NaCl