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To 225ml of a 0.750M solution of KL a student adds enough water to make 1.00L of a more dilute KL solution. What is the morality of the new solution? plz show work

Respuesta :

Answer: The molarity of the new solution is 0.169 M

Explanation:

We use the dilution law:

[tex]M_1V_1=M_2V_2[/tex]

where,

[tex]M_1\text{ and }V_1[/tex] are the molarity and volume of concentrated solution

[tex]M_2\text{ and }V_2[/tex] are the molarity and volume of diluted solution

We are given:

[tex]M_1=0.750M\\V_1=225mL\\M_2=?\\V_2=1.00L=1000ml[/tex]

Putting values in above equation, we get:

[tex]0.750\times 225=M_2\times 1000\\\\M_2=0.169M[/tex]

Thus the molarity of the new solution is 0.169 M

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