Approximately 10 mL of 6 M hydrochloric acid were initially added to the euiometer. The eudiometer was then filled with deionized water and placed into a 400-mL beaker contaning ~300 mL of deionized water. Assuming the total volume of solution was 350 mL, and that the solution was uniformly mixed, what was the dilute concentration of the hydrochloric acid?

Calculate the concentration (Mdil) of potassium permanganate (KMnO4) when 600 mL (Vconc) of the potassium permanganate solution is added to 400 mL of water. Note: first add the potassium permanganate solution (choose dropper) in the absence of water, move the sensor over the solution, and determine the concentration of the solution prior to adding water (Mconc). Knowing these three pieces of data, you can now calculate (Mail), and enter this calculated number as your answer. You can also confirm your answer by adding 400 mL of water to your 600 mL of potassium permanganate solution and checking the concentration with the sensor (NOTE: the sensor concentration will likely be slightly off the calculated number since it's difficult to add exact volumes in the simulator). Please report your numerical answer only with three significant figures and NO units (eg., 1.23). Mdildil MconcVconc A R

Answer provided: 33.8-ppm K^+1 Please show your complete solution and write your answer clearly and readable. Thank you.

Discuss three practical applications of solvent extraction in analytical chemistry.

A spectrometry method was applied to determine component A in solution. The result is shown in the table. Supposing an unknown sample gives result of 525, 536, 529, please calculate the concentration of A in the sample. \table [[C (u),0.00, 1.00, 2.00, 4.00, 8.00, 16.00], [1, 1.2, 110, 216, 445,869, 1750]] A m J c 1) A spectrometry method was applied to determine component A in solution. The result is shown in the table. Supposing an unknown sample gives result of 525, 536, 529, please calculate the concentration of A in the sample. CA (ug/ml) 0.00 1.00 2.00 4.00 8.00 16.00 I 1.2 110 216 445 869 1750