Answer :
Final answer:
In order to find the volume of a solution needed to provide a particular amount of solute, one must use the formula for molarity. Given a molarity of 1.5M and needing 0.75 mol of NaOH, the required volume is calculated to be 0.5 liters or 500 mL.
Explanation:
The subject of your question is chemistry and it relates to the concept of molarity. Molarity is a measure of concentration and is defined as the number of moles of a solute that are present in one liter of solution. In your question, you have a 1.5M NaOH solution and you need to determine the volume needed to provide 0.75 mol of NaOH.
Here's a step by step explanation:
Step 1: Understand that the Molarity (M) = Moles of solute / Liters of solution.
Step 2: Rearrange the formula to find the volume, which gives Volume = Moles of solute / Molarity.
Step 3: Substitute the given values in the formula. In this case, Volume = 0.75mol / 1.5 M.
Step 4: Calculate the volume, which equates to 0.5 liters or 500 mL. Therefore, option 3) 500 mL is the correct answer.
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