En el caso de la solución de NaHCO3, como se calcula la cantidad de soluto (0.8-0.9g) necesita para preparar 50 ml de una solución .02 M de este compuesto?
Molarity = Mol solute / L solution
Mol solute = Molarity * L solution
Mol solute = 0.02 * 0.05
Mol solute = 0.001 mol
MM(NaHCO₃) = 84 g/mol
0.001 mol * 84 g/mol = 0.084 g NaHCO₃
(0.050 L) x (0.02 mol/L NaHCO3) x (84.0066 g NaHCO3/mol) = 0.084 g
el de taco
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Molarity = Mol solute / L solution
Mol solute = Molarity * L solution
Mol solute = 0.02 * 0.05
Mol solute = 0.001 mol
MM(NaHCO₃) = 84 g/mol
0.001 mol * 84 g/mol = 0.084 g NaHCO₃
(0.050 L) x (0.02 mol/L NaHCO3) x (84.0066 g NaHCO3/mol) = 0.084 g
el de taco