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Question about Concentration Units: Molarity

Subject Chemistry

Chemistry

Source Originais Teachy

Originais Teachy

Topic Concentration Units: Molarity

Concentration Units: Molarity

Difficulty Hard

Hard

(Originais Teachy 2023) - Question Hard of Chemistry

A sodium hydroxide (NaOH) solution is prepared by dissolving 4.0 g of the solid in enough water to produce 500 mL of solution. Consider the molar mass of NaOH to be 40 g/mol. Based on this information, determine: 1) The molarity of the prepared NaOH solution. 2) After adding 100 mL of pure water to this solution, what will be the new molarity of NaOH in the resulting system, assuming that dilution does not change the mass of the solute and that the solutions are miscible in any proportion.

Answer sheet:

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