Problem: \"I am going to dilute 1.00 ml of 0.5190 M HCL and place it in a 1 lite

Question

Problem: "I am going to dilute 1.00 ml of 0.5190 M HCL and place it in a 1 liter volumetric flask and fill it to the line with water. I am then going to take 1.00 ml of that solution and put it in a second 1L flask and fill that to the mark with water. Finally, I am then going to take 1.00 ml of that solution and place it in a 500 ml flask and add water until my final volume is 500 ml."

Make the following assumptions:

1) All volumetric flasks are class A volumetrics

2) The 1.00 ml amounts were measured with a 1000 uL adjustable micropipet.

3) The original HCL solution had an uncertainty of .0003M in its molarity.

Question: What is the concentration of HCL in the final solution, and what is the uncertainty in that molarity?

Explanation / Answer

1*0.519=1000*m1 1*m1=1000m2 1m2=500m3 0.519=1000*1000*500m3 m3=1.038*10^(-9)

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