What volume, in milliliters, of calcium chloride 15.0 M stock solution would you use to
make 500 mL of 0.300M of calcium chloride solution?
20
5
15
10

What volume in milliliters of calcium chloride 150 M stock solution would you use to make 500 mL of 0300M of calcium chloride solution 20 5 15 10 class=

Respuesta :

Answer: The volume of stock solution of calcium chloride required is 10 mL.

Explanation:

A solution consists of solute and solvent. A solute is defined as the component that is present in a smaller proportion while the solvent is defined as the component that is present in a larger proportion.

To calculate the amount of solute needed, the formula used is:

[tex]C_1V_1=C_2V_2[/tex]             ....(1)

where,

[tex]C_1\text{ and }V_1[/tex] are the concentration and volume of stock solution of calcium chloride

[tex]C_2\text{ and }V_2[/tex] are the concentration and volume of diluted solution of calcium chloride

Given values:

[tex]C_1=15.0M\\C_2=0.300M\\V_2=500mL[/tex]

Plugging values in equation 1:

[tex]15.0\times V_2=0.300\times 500\\\\V_2=10mL[/tex]

Hence, the volume of stock solution of calcium chloride required is 10 mL.

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