Question 4 2 pts During this week's experiment, a student was provided with a stock solution...
PRE-LAR STUY GESTIONS The Solution is Dilution LA 20 You must read the experiment and then werde n 1. Look at the procedure for amount of liquit of the y o u 2. If you have a 50.00 ml. volumetric raskask a ta specife womendappe that measures up to 10-ml, with marks to the nearest 1/10 ml. how much more word you add to the flask to make 5000 mlofaS005 solution? 3. The 3,00 % solution needs to be diluted...
2. In order to analyze a commercial H O solution using the procedure in this experiment, it must first be diluted with distilled water. Consider 10.0 mL of a commercial peroxide solution measured with volumetric pipet diluted to 100.0 mL in a volumetric flask. If 25.00 mL of the diluted solution is titrated with 0.0202 M MnO4, calculate the percent H2O2 in the commercial peroxide solution, i.e. before dilution. The initial buret reading was 0.08 mL, and the final reading...
Electrolytes, Concentration and Dilution of Solutions n this part of the experiment, you will make a dilution of a stock solution of known concentration and calculate the concentration of the dilute solution. DILUTION OF A STOCK SOLUTION PART C: Measurements and Observations Procedure Check out a 100-mL volumetric flask from your instructor. Fill test tube about 2/3 concentration of the active ingredient from its label including units. Record 1. orlt O " concentration of active ingredient. full of "Magic 2....
You have 659.3 mL of a stock solution 4.660 M HCl. For a particular experiment, your lab partner prepared a diluted solution for you to use. In her notes, you read: " Using a volumetric pipet, took 246.54 mL of stock solution and diluted it to 739.21 ml in a volumetric flask. Then, took 100.00 mL of that solution and diluted it to 194.63 mL in a second volumetric flask. " What is the concentration that you should report for...
1. (a) A student is diluting a stock solution of a Vitamin C solution. The concentration of the stock solution is 3.687X10 M. 4.00 ml of the stock solution was transferred into a 50 mL volumetric flask and diluted to the mark with water. What is the final concentration of the dilute Vitamin C solution? (Refer to page 70 in the lab manual). (b) Would a solution prepared the same way but with 2.00 mL of the stock solution have...
answers plzz and thank you. 1. (a) A student is diluting a stock solution of a Vitamin C solution. The concentration of the stock solution is 3.687x10 M. 4.00 mL of the stock solution was transferred into a 50 ml volumetric flask and diluted to the mark with water. What is the final concentration of the dilute Vitamin C solution? (Refer to page 70 in the lab manual). (b) Would a solution prepared the same way but with 2.00 ml...
You must read the experiment and then answer these questions. 1. Look at the procedure for using a pipet. Why should you not force the last remaining amount of liquid out of the pipet? 2. If you have a 50.00 mL volumetric flask (a flask marked at a specific volume) and a pipette that measures up to 10-mL with marks to the nearest 1/10 mL, how much solute would you add to the flask to make 50.00 mL of a...
2. A stock solution of 1.24 x 10^-4 M dye is available in the laboratory. What volume of the stock solution must be transferred to the volumetric flask to prepare a 25.00 mL dilution with a concentration of 2.00 x 10^-5 M? 3. Perhaps the volume in question 2 is an inconvenient fractional amount. What volume should the analyst dispense to simplify the preparation of the dilution?
Question: Prelab Question #2: A student has weighed out 850 mg of 1-pentanol in 50 mL volumetric flask and prepared four standard solutions as described in this procedure. Calculate concentrations of 1-pentanol in mg/mL in each of these solutions. Instructional Videos to Watch before Lab Fundamentals of GC EXPERIMENTAL PROCEDURE Preparation of Solutions. Get a glassware bin from your TA. Rinse five 10 .00 mL volumetric flasks with 2-propanol (isoproponal) to remove any al cohols remaining in the nprevious usage....
A stock solution of 1.24 x 10-4 M dye is available in the labo- ratory. What volume of the stock solution must be transferred to the volumetric flask to prepare a 25.00 mL dilution with a concentration of 2.00 x 10^M? Perhaps the volume in question 2 is an inconvenient frac- |tional amount. What volume should the analyst dispense to simplify the preparation of the dilution?