Calculate the molarity of 40 % (w/w) NaOH solution, if the density of the solution is 1.5ml

Explanation

To calculate the molarity of a 40% (w/w) NaOH solution with a density of 1.5 g/mL, follow these steps:

### Step 1: Understand the meaning of 40% (w/w)
40% (w/w) NaOH solution means that there are 40 grams of NaOH in every 100 grams of the solution.

### Step 2: Calculate the mass of the solution
Since we are considering 100 grams of solution (as per the definition of w/w), we have:
- Mass of NaOH = 40 grams
...