more Chem.
Calculate the amount of solute needed to prepare the following solutions:
a. 50.0mL of a 5.0% (m/v) KCl solution
b. 1250 mL of a 4.0% (m/v) NH4Cl solution ...?

Question

21-11-2016
Chemistry

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more Chem.
Calculate the amount of solute needed to prepare the following solutions:
a. 50.0mL of a 5.0% (m/v) KCl solution
b. 1250 mL of a 4.0% (m/v) NH4Cl solution ...?

Respuesta :

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scme1702 scme1702 · Answer 1 · 2016-11-21T19:24:59+01:00

scme1702 scme1702

21-11-2016

The given percentage is that of the solute, so we subtract it from 100% to get the percentage of solvent.

a) 50 x 0.95
= 47.5 ml of solvent

b) 1250 x 0.96
= 1200 ml of solvent.

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more Chem. Calculate the amount of solute needed to prepare the following solutions: a. 50.0mL of a 5.0% (m/v) KCl solution b. 1250 mL of a 4.0% (m/v) NH4Cl solution ...?

Respuesta :

Otras preguntas

more Chem.
Calculate the amount of solute needed to prepare the following solutions:
a. 50.0mL of a 5.0% (m/v) KCl solution
b. 1250 mL of a 4.0% (m/v) NH4Cl solution ...?