The solution of MO that you made above is your stock solution from which you will...
The solution of MO that you made above is your stock solution from which you will make the five solutions of MO that you will run in your colorimeter. For your first dilution you use 0.99 mL of your MO stock solution with 4.99 mL of deionized water. You mix these two liquids in a clean test tube. What is the [MO] in this test tube?
Homework Answers
Let x M be the concentration of MO stock solution.
0.99 mL of x M MO stock solution is mixed with 4.99 mL of deionized water.
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The solution of MO that you made above is your stock solution
from which you will...
In Day 1 of the Kinetics Lab, you will start by mixing a stock solution of...
In Day 1 of the Kinetics Lab, you will start by mixing a stock solution of Methyl Orange that you will then dilute 5 times in order to have a set of solutions to test the response of your colorimeters. In this problem you will calculate the [MO] in your stock solution that you will draw from to make your 5 diluted solutions. To make the stock solution, you add 3.10 mL of deionized water, 3.04 mL of 2.0 M...
3. If you pipet 10.00 mL of the solution you made in Question #2 into a...
3. If you pipet 10.00 mL of the solution you made in Question #2 into a test tube and then you pipet 10.00 mL of deionized water into the same tube. After stirring, what is the Allura Red concentration of the new solution you've made? Hint: use at least 2 extra significant figures from your answer to question #2 to calculate this answer to avoid rounding errors. Your final answer willl be reported to the correct number of sf. This...
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 di...
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....
my questions are the following: A) what is the concentration of the stock solution of LDH?...
my questions are the following:
A) what is the concentration of the stock solution of LDH?
B) Based upon Part B of the protocol, show your calculations to
make the 250ug/ml LDH solution.
C) Based upon Part B of the protocol, show your calculations to
make the 25ug/ml LDH solution.
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You transfer 1 mL of stock solution to tube A, add 9 mL of water and...
You transfer 1 mL of stock solution to tube A, add 9 mL of water and mix. You then transfer 1 mL from tube A to tube B, add 9 mL of water and mix. And finally you transfer 1 mL from tube B to tube C, add 9 mL of water and mix. What is the total dilution factor for this series when comparing the stock solution with tube C? (990 is not the answer)
We first made a 1.0 Mcfarland inoculum with a 10ml volume from a few isolated colonies....
We first made a 1.0 Mcfarland inoculum with a 10ml volume from a few isolated colonies. Then we did the following dilutions: 10^6 dilution, add 0.1 mL of the Mcfarland inoculum to test tube #2 and add 10ml of water and mix. 10^4 dilution, add 0.1 mL of test tube #2 to test tube #3 and add 10ml of water and mix. 10^2 dilution, , add 0.1 mL of test tube #3 to test tube #4 and add 10ml of...
1. in run 1, you mix 8.1 mL of the 43 g/L MO solution (MO molar...
1. in run 1, you mix 8.1 mL of the 43 g/L MO solution (MO molar mass is 327.33 g/mol), 2.89 mL of the 0.040 M SnCl22 in 2 M HCl solution, 5.46 mL of 2.0M HCl solution, and 3.47 mL of 2.0M NaCl solution. What is the [MO]? a. In run 1, you mix 8.1 mL of the 43 g/L MO solution (MO molar mass is 327.33 g/mol), 2.89 mL of the 0.040 M SnCl22 in 2.0 M HCl...
phenol is in each of your unknowns. 1. You will be given a nitrophenol solution of...
phenol is in each of your unknowns. 1. You will be given a nitrophenol solution of concentration 400 nmoles/mL and you will use this stock solution to make a serial dilution as follows: To make the serial dilution you need to prepare 5 tubes with 1 ml water. Next, add 1ml from the 400 nmoles/ml stock to the first tube. Pipette the solution up and down carefully and remove 1 ml of this solution to the next tube. Repeat this...
Prelab 9: Due at the start of Lab 9 Name: Lab day Show all work and...
Prelab 9: Due at the start of Lab 9 Name: Lab day Show all work and include units and sig figs where applicable. 1. To make solutions for the Beer's Law graph, you are provided with a 49.9 ppm Allura Red solution. You pipet 10.00 mL of this solution into a test tube and then you pipet 20.00 mL of deionized water into the same tube. After stirring, what is the Allura Red concentration of the new solution you've made?...
Laboratory goggles must be worn! A) Preparation of Solutions from Concentrated Solution In this part the...
Laboratory goggles must be worn! A) Preparation of Solutions from Concentrated Solution In this part the experiment you will prepare several dilute solutions from the more concentrated cobalt nitrate solution 1. Read the label on the provided cobalt nitrate solution and record the molarity accurately. su-olu 563/ 316.603:48 صلاح 2. 3. 4. Molarity of Ca(NO3)2 solution 182.95 g/mol Obtain a 25-ml buret. Examine its markings, the line that spans the entire circumference occur for each milliliter. The smaller lines indicate...
3. If you pipet 10.00 mL of the solution you made in Question #2 into a test tube and then you pipet 10.00 mL of deionized water into the same tube. After stirring, what is the Allura Red concentration of the new solution you've made? Hint: use at least 2 extra significant figures from your answer to question #2 to calculate this answer to avoid rounding errors. Your final answer willl be reported to the correct number of sf. This...
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....
my questions are the following:
A) what is the concentration of the stock solution of LDH?
B) Based upon Part B of the protocol, show your calculations to
make the 250ug/ml LDH solution.
C) Based upon Part B of the protocol, show your calculations to
make the 25ug/ml LDH solution.
You will be given 60 ul of LDH stock solution. You need to determine the protein concentration of this stock solution and then perform a serial dilution to end up...
phenol is in each of your unknowns. 1. You will be given a nitrophenol solution of concentration 400 nmoles/mL and you will use this stock solution to make a serial dilution as follows: To make the serial dilution you need to prepare 5 tubes with 1 ml water. Next, add 1ml from the 400 nmoles/ml stock to the first tube. Pipette the solution up and down carefully and remove 1 ml of this solution to the next tube. Repeat this...
Prelab 9: Due at the start of Lab 9 Name: Lab day Show all work and include units and sig figs where applicable. 1. To make solutions for the Beer's Law graph, you are provided with a 49.9 ppm Allura Red solution. You pipet 10.00 mL of this solution into a test tube and then you pipet 20.00 mL of deionized water into the same tube. After stirring, what is the Allura Red concentration of the new solution you've made?...
Laboratory goggles must be worn! A) Preparation of Solutions from Concentrated Solution In this part the experiment you will prepare several dilute solutions from the more concentrated cobalt nitrate solution 1. Read the label on the provided cobalt nitrate solution and record the molarity accurately. su-olu 563/ 316.603:48 صلاح 2. 3. 4. Molarity of Ca(NO3)2 solution 182.95 g/mol Obtain a 25-ml buret. Examine its markings, the line that spans the entire circumference occur for each milliliter. The smaller lines indicate...
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