Problemas
What is the molarity of 57g Mg(OH)2 dissolved in 2000 mL H2O (Mg=40O=16 H=1) 0.25 M 0.5 M 1.0 M 2.0 M
Roztwór
Genoveva
élite · Tutor durante 8 años
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(190 Votos)
Respuesta
To find the molarity of the solution, we need to calculate the number of moles of
dissolved in 2000 mL of water.Given information:- Mass of
dissolved: 57 g- Molar mass of
:
- Volume of water: 2000 mLStep 1: Calculate the molar mass of
.Molar mass of
=
g/molStep 2: Calculate the number of moles of
dissolved.Number of moles =
molesStep 3: Calculate the molarity of the solution.Molarity =
MTherefore, the molarity of the solution is 0.5 M.