A10 m concentrated stock solution of nacl is used to prepare 2 liters of diluted 1 m solution. which of the following is true for the process used to achieve the required dilution? the volume of the solvent used is less than 2 liters. the volume of the solvent used is less than 0.1 liters. the volume of stock solution used is more than 2 liters. the volume of stock solution used is less than 0.1 liters.

The volume of the solvent used is less than 2 liters.

Explanation:

(MV) before dilution = (MV) after dilution.

M before dilution = 10.0 M, V before dilution = ??? L.

M after dilution = 1.0 M, V after dilution = 2.0 L.

∴ V before dilution = (MV) after dilution / (M) before dilution = (1.0 M)(2.0 L)/(10.0 M) = 0.2 L = 200.0 mL.

So, to prepare the diluted solution; we use 200 mL (0.2 L) from the stock solution (10.0 M NaCl) and add 1.8 L of the solvent (water).

Thus, the right choice is: The volume of the solvent used is less than 2 liters.

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