Respuesta :

50*2=150*M
M=150/100=1.5M

Answer: The molarity of concentrated NaOH solution is 6 M

Explanation:

To calculate the molarity of the concentrated solution, we use the equation:

[tex]M_1V_1=M_2V_2[/tex]

where,

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

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

We are given:

[tex]M_1=?M\\V_1=50.00mL\\M_2=2.0M\\V_2=150mL[/tex]

Putting values in above equation, we get:

[tex]M_1\times 50.00=2.0\times 150.0\\\\M_1=\frac{2.0\times 150}{50}=6M[/tex]

Hence, the molarity of concentrated NaOH solution is 6 M