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Suppose you have 100.00 mL of a solution of a dye and transfer 2.00 mL of...
A penny having a mass of 2.5340 g was dissolved in 20 mL of 8 M HNO3. The resulting solution was transferred to a 100.00-ml volumetric flask and diluted to the mark with water.
A penny having a mass of 2.5340 g was dissolved in 20 mL of 8 M HNO3. The resulting solution was transferred to a 100.00-ml volumetric flask and diluted to the mark with water. Then, a sample solution was prepared by transferring 10.00 mL of this solution to a 25.00- ml volumetric flask, adding 2.00 mL of 15 M NH3 and diluting to the mark with waterThe concentration of [Cu(NH3)4]2+ in the sample solution (determined using a Spectro Vis spectrophotometer)...
Question 1 2 pts 3.34 mL of an unknown glucose solution was diluted in a 100.00 mL of volumetric flask with distill...
Question 1 2 pts 3.34 mL of an unknown glucose solution was diluted in a 100.00 mL of volumetric flask with distilled water. 10mL of that solution and 4.00 mL of the ferricyanide reagent was placed in a second 100.00 mL volumetric flask and diluted to the mark with distilled water. Spectrophotometric analysis of the glucose/ferricyanide solution showed that the concentration of glucose was 0.070 M. What is the concentration of glucose in the unknown solution?
Question 1 2 pts 3.34 mL of an unknown glucose solution was diluted in a 100.00 mL of volumetric flask with distill...
Question 1 2 pts 3.34 mL of an unknown glucose solution was diluted in a 100.00 mL of volumetric flask with distilled water. 10mL of that solution and 4.00 mL of the ferricyanide reagent was placed in a second 100.00 mL volumetric flask and diluted to the mark with distilled water. Spectrophotometric analysis of the glucose/ferricyanide solution showed that the concentration of glucose was 0.070 M. What is the concentration of glucose in the unknown solution?
As described in part A of the lab, you are preparing a solution by adding 2.00...
As described in part A of the lab, you are preparing a solution by adding 2.00 mL of 0.00200 M KSCN in HNO3 and 25.00 mL of 0.200 M Fe(NO3)3 in HNO3 into a clean, labeled 100.00 mL volumetric flask and diluting to the 100.00 mL mark with 0.25 M HNO3. Calculate the final concentration of KSCN in HNO3. 0.00200 M 0.000400 M 0.0000400 M 0.0000315 M 0.0500 M
1. Serial dilution Questions: a) (5 pts) Suppose you begin with stock solution of dye that has a concentration of 3...
1. Serial dilution Questions: a) (5 pts) Suppose you begin with stock solution of dye that has a concentration of 350.0 mg/L and do the following set of serial dilutions on it: 5.00 mL of stock diluted to a total volume (TV) of 500.00 mL (Dilution 1); 2.00 mL of Dilution 1 is then diluted to a TV of 250.00 mL (Dilution 2); finally, 1.00 mL of Dilution 2 is then diluted to a total volume of 100.00 mL. Calculate...
6. The concentration from analysis question 5 represents the concentration in the 10.00 mL sample that...
6. The concentration from analysis question 5 represents the concentration in the 10.00 mL sample that was prepared in the volumetric flask using an aliquot of the solution in the 100.00 mL volumetric flask. Calculate the concentration of acetylsalicylic acid in the 100.00 mL volumetric flask. This is a simple dilution – as long as you use the correct volumes! -Concentration from Question 5= .00096 M Values you may need?: Preperation of commercial aspirin solution 1. combine 1 aspirin tablet...
The recommended procedure for preparing a very dilute solution is not to weigh out a very...
The recommended procedure for preparing a very dilute solution is not to weigh out a very small mass or measure a very small volume of stock solution. Instead, it is done by a series of dilutions. A sample of 0.8521 g of KMnO4 was dissolved in water and made up to the volume in a 500.0−mL volumetric flask. A 2.000−mL sample of this solution was transferred to a 1000−mL volumetric flask and diluted to the mark with water. Next, 10.00...
Please type in the Computer so I can be able to read it. A student need...
Please type in the Computer so I can be able to read it.
A student need to prepare four standard solutions by serially diluting a stock solution with concentration 5.0 times 10^-4 N. Standard I will be created by transferring 5.00 mL of the stock solution to the mark with deionized water. The remaining standard solutions (Standards 2 - 4) will be created by transferring 25.00 mL of the previously made standard solution to a 50.00 mL volumetric flask, then...
3. (5 pts) A solution was prepared by transferring 0.661 g of KSO to a 250.0-ml...
3. (5 pts) A solution was prepared by transferring 0.661 g of KSO to a 250.0-ml volumetric flask (container 1) and adding water to the mark. A sample of this solution of volume 1.000 ml was transferred to a 500.0-ml volumetric flask (container 2) and diluted to the mark with water. Then 10.0 mL of the diluted solution was transferred to a 250.0-ml flask (container 3) and diluted to the mark with water. What is the final concentration of K2SO4...
A chemist needs to create a series of standard Cu²+ (aq) solutions for an absorbance experiment....
A chemist needs to create a series of standard Cu²+ (aq) solutions for an absorbance experiment. For the first standard, he uses a pipet to transfer 25.00 mL of a 2.20 M Cu2+ (aq) stock solution to a 250.0 mL volumetric flask, and he adds enough water to dilute to the mark. He then uses a second pipet to transfer 5.00 mL of the second solution to a 50.00 ml. volumetric flask, and he adds enough water to dilute to...
Question 1 2 pts 3.34 mL of an unknown glucose solution was diluted in a 100.00 mL of volumetric flask with distilled water. 10mL of that solution and 4.00 mL of the ferricyanide reagent was placed in a second 100.00 mL volumetric flask and diluted to the mark with distilled water. Spectrophotometric analysis of the glucose/ferricyanide solution showed that the concentration of glucose was 0.070 M. What is the concentration of glucose in the unknown solution?
Question 1 2 pts 3.34 mL of an unknown glucose solution was diluted in a 100.00 mL of volumetric flask with distilled water. 10mL of that solution and 4.00 mL of the ferricyanide reagent was placed in a second 100.00 mL volumetric flask and diluted to the mark with distilled water. Spectrophotometric analysis of the glucose/ferricyanide solution showed that the concentration of glucose was 0.070 M. What is the concentration of glucose in the unknown solution?
1. Serial dilution Questions: a) (5 pts) Suppose you begin with stock solution of dye that has a concentration of 350.0 mg/L and do the following set of serial dilutions on it: 5.00 mL of stock diluted to a total volume (TV) of 500.00 mL (Dilution 1); 2.00 mL of Dilution 1 is then diluted to a TV of 250.00 mL (Dilution 2); finally, 1.00 mL of Dilution 2 is then diluted to a total volume of 100.00 mL. Calculate...
Please type in the Computer so I can be able to read it.
A student need to prepare four standard solutions by serially diluting a stock solution with concentration 5.0 times 10^-4 N. Standard I will be created by transferring 5.00 mL of the stock solution to the mark with deionized water. The remaining standard solutions (Standards 2 - 4) will be created by transferring 25.00 mL of the previously made standard solution to a 50.00 mL volumetric flask, then...
3. (5 pts) A solution was prepared by transferring 0.661 g of KSO to a 250.0-ml volumetric flask (container 1) and adding water to the mark. A sample of this solution of volume 1.000 ml was transferred to a 500.0-ml volumetric flask (container 2) and diluted to the mark with water. Then 10.0 mL of the diluted solution was transferred to a 250.0-ml flask (container 3) and diluted to the mark with water. What is the final concentration of K2SO4...
A chemist needs to create a series of standard Cu²+ (aq) solutions for an absorbance experiment. For the first standard, he uses a pipet to transfer 25.00 mL of a 2.20 M Cu2+ (aq) stock solution to a 250.0 mL volumetric flask, and he adds enough water to dilute to the mark. He then uses a second pipet to transfer 5.00 mL of the second solution to a 50.00 ml. volumetric flask, and he adds enough water to dilute to...
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