Academic Integrity: tutoring, explanations, and feedback — we don’t complete graded work or submit on a student’s behalf.

Please show ALL work and give explanations. Your help and guidance are greatly a

ID: 612346 • Letter: P

Question

Please show ALL work and give explanations. Your help and guidance are greatly appreciated. Thank you in advance. 1. One way to make a set of solutions of regularly decreasing concentrations is to make serial dilutions of the most concentrated one. a) Starting with a 1.00 M solution, calculate the concentration of the solution prepared by taking 25.00 mL of the stock solution and diluting it properly with water in a 100 mL volumetric flask b) If you repeat this process 8 times, each time using 25.00 mL of the new dilute solution to make 100.00 mL of a more diluted solution, what will be the concentration of your final solution? *** 2. Starting with a 10% solution and making a series of 1:100 dilutions, how many dilutions must you make to prepare 0.1 ppm (part per million) solution? How many ppb

Explanation / Answer

(a)It will be 0.25M as one fourth is taken (b)it will be (1/4)^n where n is the number of times you have taken, in this case it is 8.

Hire Me For All Your Tutoring Needs
Integrity-first tutoring: clear explanations, guidance, and feedback.
Drop an Email at
drjack9650@gmail.com
Chat Now And Get Quote