contestada

When 25mL of 0.30M solution is diluted to 50 m L , the new concentration is:

0.10M
0.60M
0.15M
0.30M

Respuesta :

the first option i hope this helps
Ver imagen anonymous79

Answer: 0.15M

Explanation:

The expression used will be :

[tex]M_1V_1=M_2V_2[/tex]

where,

[tex]M_1[/tex] = concentration of stock solution = 0.30 M

[tex]M_2[/tex] = concentration of dilute solution = ?

[tex]V_1[/tex] = volume of stock solution = 25 ml

[tex]V_2[/tex] = volume of dilute solution= 50 ml

Now put all the given values in the above law, we get :

[tex](0.30M\times 25ml=(M_2\times 50ml)[/tex]

By solving the terms, we get :

[tex]M_2=0.15M[/tex]

Therefore, the concentration of new solution will be 0.15 M.