Question

How many milliliters of a 0.20 M glucose (C6H1206) solution are needed to provide a total of 25.0 g of glucose?

Answer 1

Respuesta:

V = 690 mL de solución de glucosa.

Explicación:

How many milliliters of a 0.20 M glucose (C6H1206) solution are needed to provide a total of 25.0 g of glucose?

Datos:

v = ¿?

M = 0.20 mol/L

m glucosa = 25.0 g

Mm Glucosa = 180 g/mol

1. calcular moles de soluto

n = m/Mm

n = __25.0 g_-

      180 g/mol

n = 0.138 moles de glucosa

2. calcular volumen de glucosa

M = n (moles soluto)

           V(L) solc.

V = _0.138 mol_

       0.20 mol/L

V = 0.69 Litros de solución

3. calcualr volumen en mL

V = 0.69 x 1000

V = 690 mL de solución de glucosa.