if i calculated a dilution concentration from excel to be 0.171 ppm, how do i calculate the concentration of the analyte in 64 fl oz bottle? So we pulled 10 mL out, and diluted it to 40 mL...is this right, 0.171 ppm / (10 mL/40mL) = concentration in 1 bottle?
0.171 ppm in initial 64 oz bottle. Of course the concn is the same no matter what kind of bottle you put it in.
Remove 10.0 mL and dilute to 40 mL in another bottle. The concn in the other bottle is 0.171 x (10/40) = ? ppm.
thank you! I also get confused on these types of problems
To calculate the concentration of the analyte in a 64 fl oz bottle, you need to consider the dilution and the volume of the bottle.
Let's break it down step by step:
1. Calculate the concentration after the initial dilution:
- We have a dilution of 10 mL to 40 mL, meaning a 1:4 dilution.
- If the initial concentration was 0.171 ppm, then after dilution, the concentration becomes 0.171 ppm * (10 mL/40 mL).
- The volume cancellation gives a resulting concentration of 0.171 ppm * (10/40) = 0.04275 ppm.
2. Calculate the concentration in the 64 fl oz bottle:
- First, you need to convert the volume of the bottle to mL. 64 fl oz is approximately 1892.71 mL.
- Now, you can calculate the concentration in the 64 fl oz bottle using a proportion:
Concentration in 64 fl oz bottle = (0.04275 ppm * 1892.71 mL) / 40 mL.
By plugging in these values into the equation, you can find the concentration of the analyte in the 64 fl oz bottle.