QUESTION 1 1. A 20.00 mL sample of 0.100 M nitric acid is introduced into a flas

Question

QUESTION 1

1.      A 20.00 mL sample of 0.100 M nitric acid is introduced into a flask, and water is added until the volume of the solution reaches 250. mL. What is the concentration of nitric acid in the final solution?

Greater than 0.100 M

Less than 0.100 M

The same as 0.100 M

The concentration of the new solution cannot be determined with the given information.

How was this figured out?? thank you

Greater than 0.100 M

Less than 0.100 M

The same as 0.100 M

The concentration of the new solution cannot be determined with the given information.

Explanation / Answer

Formula is V1 x N1 = V2 x N2

here V1 = 20 ml

N1 = 0.1

V2 = 250 ml

Hence N2 = 25 x 0.1 /250 = 0.01 M (Exact concentration)

Hence the answer is Less than 0.100 M

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