A stock solution of HNO₃ is prepared and found to contain 12.7 M of HNO₃.If 25.0 mL of the stock solution is diluted to a final volume of 0.500 L,the concentration of the diluted solution is ________ M. A)0.254 B)1.57 C)0.635 D)635 E)254

Question

Quizplus · Accepted Answer

To calculate the concentration of the diluted solution, we can use the formula:

M1V1 = M2V2

where M1 and V1 are the initial concentration and volume of the stock solution, and M2 and V2 are the final concentration and volume of the diluted solution.

Substituting the given values, we get:

(12.7 M) x (25.0 mL) = M2 x (0.500 L)

Simplifying and solving for M2, we get:

M2 = (12.7 M x 25.0 mL) / 0.500 L

M2 = 0.635 M

Therefore, the concentration of the diluted solution is 0.635 M. The correct choice is C.

A Stock Solution of HNO3 Is Prepared and Found to Contain

A Stock Solution of HNO₃ Is Prepared and Found to Contain