Respuesta :

Thank you for posting your question here at brainly. Below are the choices that can be found elsewhere:

12.88 M 
0.1278 M 
0.2000 M 
0.5150 M

Below is the answer:

5 times diluted (250/50),so 2.575/5=0.515 M

I hope it helps. 
sebassandin

Answer:

[tex]M_2=0.515M[/tex]

Explanation:

Hello,

In this case, since the dilution process does not affect the quantity of moles in the solution (from state 1 to 2), one leverages the aforesaid conservation and subsequently uses the definition of molarity to obtain the dilution formula as shown below:

[tex]n_1=n_2\\M=\frac{n}{V} \\M_1V_1=M_2V_2[/tex]

Next, solving for the molarity after the dilution, [tex]M_2[/tex], one obtains:

[tex]M_2=\frac{M_1V_1}{V_2}=\frac{2.575M*50.00mL}{250.0mL}\\M_2=0.515M[/tex]

Best regards.

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