We’re being asked to calculate the mass of NaOH in 350.0 mL of a 0.225 M NaOH solution.
Recall that molarity is the ratio of the moles of solute and the volume of solution (in liters).
In other words:
How many grams of NaOH (MW = 40.0) are there in 350.0 mL of a 0.225 M NaOH solution?
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