wame Jayda March Post-lab 22 Dilution and Titration 1. A dilute HCl solution was prepared by...
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....
In lab you carried out a serial dilution and calculated the concentration of each solution. Starting with a 2.05 M HCl stock solution, three standard solutions are prepared by sequentially diluting 5.00 mL of each solution to 150.0 mL. What is the concentration of the final solution? 0.0683 M 2.28 times 10^-3 M 9.11 times 10^-6 M 7.59 times 10^-5 M 2.53 times 10^-6 M
5.00 mL stock 5.00 mL Dilution A 5.00 mL Dilution B + 45.0 mL Water + 45.0 mL Water + 45.0 mL Water O b lo Dilution C Dilution A Dilution B Example #5. Solution A is prepared by diluting 1.00 mL of 0.160 M CaCl2 to 50.0 mL. Solution B is prepared by diluting 10.0 mL of Solution A to 500.0 mL. What is the concentration of CaCl2 in Solution B? O lodno tlo iz obdobimo t 100 babe...
1. A student carries out a back titration to determine the concentration of ammonium chloride in a solution. The student collects 10.80 mL of the original NH4Cl solution and dilutes it to 250.0 mL (we will refer to this as the dilute NH4Cl solution). Then 25.00 mL of the dilute NH4Cl solution are transferred to an Erlenmeyer flask and 25.00 mL of 0.1963 M NaOH are added. Calculate the moles of NaOH added to this Erlenmeyer flask. 2. In the...
Exercise 12 Name Solution Concentrations Lab Gwyl time What is the molarity of a solution that has 4,50 x10 moles of Copper) fate in 1. What 0.500 L? How many moles of NaOH are required to prepare 5.00 L of 0.870 M solution? 3 What volume of 12.0 M HCl is needed to prepare 200.0 mL of 0.345M HCl solution? 4. What is the molarity of a solution if 5.00 g of KOH are dissolved in enough water to make...
Calculate the concentration of the standard HCl solution you prepared. Determine this concentration for each trial and the average and standard deviation for all three trials. Part B-Preparation and standardization of an HCl Solution 1. Before you can titrate your saturated Ca(oH)a solutions, you must prepare and standardize a dilute solution of Hcl. With a graduated cylinder measure at least 6 mL of the stock Hcl lution, transfer it to a 125 mL Erlenmeyer, and dilute to approximately 100 mL...
a dilute solution is prepared by transferring 40.00mL of a .3433 M stock solution to a 750mL volumetric flask and diluting to mark. What is the molarity of this dilute solution 0.01838876 M 0.03661 M 0.06436 M 0.004577 M 0.1716 M
what is the pH of .10 M solution of HCL Name - TA - Laboratory Date - Section Experiment 10-Post-lab Questions 1. What is the pH of a 0.10 M solution of HCI? 2. If 50 mL of 0.10 M HCl is diluted to a total volume of 100 mL by adding distilled water, what is the HCl concentration in the new solution? 3. How many moles of NaOH are required to neutralize all of the HCl in the 100...
general chemistry experiment requires the use of 2.00 M HCl, which must be prepared by diluting stock 11.9 M HCl. Miguel wishes to prepare 650 mL of the dilute solution. How many mL of the concentrated solution must Miguel use? Miguel must use ___ mL of the concentrated solution. (Miguel had also better wear goggles while performing the dilution!)
1. In the second step she prepared the vinegar solution for the titration in the following manner 25.0 mL of vinegar were diluted to 250.0 mL in a volumetric flask, and 25.0 mL of this diluted solu- tion required 8.27 mL of the above standardized NaOH (gquestion 5a) to reach the phenolphthalein endpoint. What is the molarity of the acid as it was titrated (diluted vinegar)? a. Use the dilution equation to determine the molarity of the acid prior to...