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What volume of solution is needed to prepare a 0.50M solution of sodium hydroxide using 2.0 g of solute? Show your work

Respuesta :

maacastrobr

Answer:

0.10 L

Explanation:

First we convert the 2.0 grams of solute (meaning sodium hydroxide) into moles, using its molar mass:

  • 2.0 g ÷ 40 g/mol = 0.05 mol NaOH

Then we can calculate the required volume of solution, using the definition of molarity:

  • Molarity = moles / liters
  • liters = moles / molarity
  • 0.05 mol / 0.50 M = 0.10 L