Answer:
The second one is the answer
Answer:
The volume of the solvent used is less than 2 liters.
Explanation:
- It is known that the no. of millimoles of the solution before dilution is equal to the no. of millimoles of the solution after the dilution.
(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.
<em>∴ V before dilution = (MV) after dilution / (M) before dilution</em> = (1.0 M)(2.0 L)/(10.0 M) = <em>0.2 L = 200.0 mL.</em>
<em>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).</em>
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Thus, the right choice is: The volume of the solvent used is less than 2 liters.
