Question

Calculate the grams or milliliters of solute needed to prepare the following solutions.

1.) 30. g of a 5.0 % (m/m) KCl solution

2.) 1500 mL of a 7.0 % (m/v) NH4Cl solution

3.) 220. mL of a 10.0 % (v/v) acetic acid solution

Calculate the final concentration of the solution when water is added to prepare each of the following solutions.

1.) 45.0 mL of a 20.8 M HCl solution is diluted to 460. mL

2.) 55.0 mL of a 24.0 %(m/v) NH4Cl solution is diluted to 135 mL

3.) 4.50 mL of a 6.50 M KOH solution is diluted to 70.0 mL

Answer 1

Calculate the grams or milliliters of solute needed to prepare the following solutions.

1.) 30. g of a 5.0 % (m/m) KCl solution

Mass of KCl required is .

2.) 1500 mL of a 7.0 % (m/v) NH4Cl solution

Mass of NH4Cl required is

3.) 220. mL of a 10.0 % (v/v) acetic acid solution

Volume of acetic acid required is

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Calculate the final concentration of the solution when water is added to prepare each of the following solutions.

1.) 45.0 mL of a 20.8 M HCl solution is diluted to 460. mL

The final concentration of the solution

2.) 55.0 mL of a 24.0 %(m/v) NH4Cl solution is diluted to 135 mL

The final concentration of the solution % m/v

3.) 4.50 mL of a 6.50 M KOH solution is diluted to 70.0 mL

The final concentration of the solution