AgNO3 was dissolved in water to make 10mL of solution. Then 3.0mL of that solution was used to make a new solution with a total volume of 1.000L. What was the concentration of the silver ion in the final solution?

Question

AgNO3 was dissolved in water to make 10mL of solution.  Then 3.0mL of that solution was used to make a new solution with a total volume of 1.000L.  What was the concentration of the silver ion in the final solution?

DrBob222 · Answer

I have no idea. You didn't give a mass of AgNO3 used. I can give you a template to use, however, if we assume the mass AgNO3 used initially was 1 gram.
Then the original concn was 1 g/10 mL = 0.1 g/mL. Then you took 3 mL of that and diluted to 1000 mL so the new concn is
0.1 g/mL x (3 mL/1000 mL) = ??