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17 February, 08:58

What is the molarity of a solution containing 20 grams of naoh in 500 milliliters of solution?

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  1. 17 February, 09:22
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    [NaOH] = 1 M

    Explanation:

    To determine molarity (mol/L) we:

    Convert the mass of solute to moles

    20 g. 1 mol / 40 g = 0.5 moles of NaOH

    Convert the volume of solution from mL to L

    500 mL. 1 L / 1000 mL = 0.5 L

    Moles of solute / Volume of solution (L) → Molarity

    0.5 mol / 0.5L = 1 M

    This solution is 1 M, which means that 1 mol of solute (NaOH) is contained in 1L of solution.
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