In this lab you will need to prepare solutions using dilutions. Starting with the stock 0.300...
In this lab you will need to prepare solutions using dilutions. Starting with the stock 0.300 M NaOH solution, how would you prepare a 0.025 M NaOH solution (using 0.300 M NaCl as the diluent)? To prepare 24 mL of 0.025 M NaOH solution, you would add _____ mL of 0.300 M NaOH stock solution and _____ mL of 0.300 M NaCl solution.
You start with a 4M stock solution of NaCl, you need to make dilutions to obtain various working solutions. Describe how you would make 100 mL of a working solution that has a final concentration of 1M. Be sure to include the volume and concentration of the components.
In the lab, you will need to perform serial dilutions. What would be the concentration of the new solution made if you took 2.50 mL of a 0.10 M Cu(2+) solution and diluted it to 10.00 mL?
Making Solutions Practice Problems: I. How would you prepare 100 ml of a 30% (w/v) solution of polyethylene glycol (PEG)? 2. How would you prepare 50 ml of a 9 % (w /v ) solution of NaCI? 3. How would you prepare 200 ml of 70 % ( v /v ) solution of ethanol from a stock of 95% ethanol? How would you prepare 200 ml of 0.3 M NaCl? (NaCl MW 58.44) 4. 5. How are 50 ml of...
8. Describe briefly how you would prepare, with a minimum number of dilutions, a 1x 10 Msolution of NaOH given the following: a 0.08 M stock solution of NaOH; 2, 5, 10 mL pipettes; 10, 20, 50, 100 mL volumetric flasks. (Show your working) 8. Describe briefly how you would prepare, with a minimum number of dilutions, a 1x 10 Msolution of NaOH given the following: a 0.08 M stock solution of NaOH; 2, 5, 10 mL pipettes; 10, 20,...
You have a 1M stock solution of glucose and you want to prepare three separate dilutions: 100mM, 10mM, and 0.1mM glucose. How would you do this?
Describe in detail how to prepare the following aqueous solutions, starting from stock solutions. Report any calculated volumes in milliliters. A. 1000.0 mL of 3.50 M HBr from a 8.89 M stock solution
1. A series of dilute NaCl solutions are prepared starting with an initial stock solution of 0.100 M NaCl. Solution A is prepared by pipeting 10 mL of the stock solution into a 250-mL volumetric flask and diluting to volume. Solution B is prepared by pipeting 25 mL of solution A into a 100-mL volumetric flask and diluting to volume. Solution C is prepared by pipeting 20 mL of solution B into a 500-mL volumetric flask and diluting to volume....
Solution Preparation You need to prepare solutions for the reactions you will perform in the laboratory experiment. You will be given a 0.02M stock solution of KMnO4 and a 0.5M stock solution of H2C2O4. The total volume of the solutions should always be 30 mL. You will use DI water to complete the volume as needed. Complete the table below and copy the results into your lab notebook for use during the lab: Run Volume KMnO4 (mL) Volume H2C2O4 (mL)...
You prepared a set of standard solutions by serial dilutions. You started with a stock solution of bromocresol green with a concentration of 0.213 M. The following standard solutions were prepared as described below. Solution A: Stock solution of bromocresol green at a concentration of 0.213 M. Solution B: 25 mL of solution A was diluted to 50 mL in a volumetric flask. Solution C: 25 mL of solution B was diluted to 50 mL in a volumetric flask. Solution...