You have a stock solution with following components:

glucose: 44 g/L
NaCl: 191 g/L
Tris Buffer: 275 g/L
You mix 71 mL of the solution with water and bring the resulting solution to a final volume of 750 mL.
What is the final concentration of glucose in g/L?

To find the final concentration of glucose in g/L, we need to calculate the amount of glucose in the 71 mL stock solution and then divide it by the final volume of the resulting solution, which is 750 mL.

1. Calculate the amount of glucose in the 71 mL stock solution:
To find the amount of glucose in the 71 mL stock solution, we can multiply the concentration of glucose in the stock solution (44 g/L) by the volume of the solution (71 mL) and convert the units if necessary.

Amount of glucose in the 71 mL solution = (concentration of glucose) * (volume of solution)
= (44 g/L) * (71 mL) = (44 g/L) * (0.071 L) = 3.124 g

2. Calculate the final concentration of glucose in the resulting solution:
To find the final concentration of glucose in the resulting solution, we divide the amount of glucose in the 71 mL stock solution by the final volume of the resulting solution.

Final concentration of glucose = (Amount of glucose in the stock solution) / (Final volume of the resulting solution)
= (3.124 g) / (0.750 L) = 4.165 g/L

Therefore, the final concentration of glucose in the resulting solution is 4.165 g/L.