If salt (5.99 × 10–6 mol) is dissolved in 1.50 × 10–2 L of water, which expression can be used to find the molarity of the resulting solution?

Molarity is the number of moles of solute divided by the volume of solution in liters. Here, (5.99 × 10⁻⁶ mol) ÷ (1.50 × 10⁻² L) = 3.99 × 10⁻⁴ mol/L. Thus, the correct choice is 3.99 × 10⁻⁴ M.

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