5 g of NaOH was dissolved in deionized water to prepare a 450 mL stock solution. What volume (in mL) of this solution would be required to prepare 500 mL of 0.1 M solution?

Given: Molar Mass of Na, O

Question

5 g of NaOH was dissolved in deionized water to prepare a 450 mL stock solution. What volume (in mL) of this solution would be required to prepare 500 mL of 0.1 M solution?

Given: Molar Mass of Na, O and H is 23, 16 and 1 g mol⁻¹ respectively

Canvas Classes · Accepted Answer

Strategy:
 First, find the molarity of the stock solution. Then use the dilution law  to find the required volume.

Step 1: Molarity of stock solution ()
- Mass . Molar mass = 40.
- .
- .

Step 2: Dilution Calculation
Target: 500 mL of 0.1 M.

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