A lab group made a copper amine stock solution with a concentration of 0.02 M. A group member transfers 9.27 mL of this solution to a 25 mL volumetric flask and dilutes to the line with water. What is the concentration of the resulting solution?

Answer : The concentration of the resulting solution is, 0.0074 M

Explanation :

Formula used :

where,

are the initial molarity and volume of stock solution.

are the final molarity and volume of diluted solution.

We are given:

Putting values in above equation, we get:

Hence, the concentration of the resulting solution is, 0.0074 M

answers: to make sure that all of the broken pieces of tablet were added to the water, to allow for fair comparison of all three trials, with different particle sizes to avoid experimental error