How to do dilution calculations

    • [DOC File]Concentration and Dilution Lab

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      2. Determine the DO of the two dilution water blanks and all sample bottles and record on data sheet as Initial DO. 3. Place the samples and the 2 dilution water blanks in a 20 ( 1(C incubator for 5 days. Fill water seals with dilution water and cap to reduce evaporation from seals. Check daily, add water to seals if necessary.

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    • [DOC File]DILUTIONS AND STANDARDS

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      Dilution Calculations. Standard solutions used for making calibration curves are often prepared by diluted a more concentrated stock solution. A known volume of the stock solution is transferred to a new container and brought to a new volume. Since the total amount of solute is the same before and after dilution, we know that:

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    • [DOC File]Determination of Biochemical Oxygen Demand (BOD5)

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      Decide dilution to be made for the specimen. Fix corresponding dilution code label below the specimen barcode. Prepare dilution in clean empty tube. Make sure the total volume will be at least 3ml. Pour diluted specimen into tube. Place the diluted tube in a patient rack and place on right hand side of the iQ analyzer. Press START to run the ...

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    • [DOC File]Dilution of Solutions

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      In the second tube 2 mL of the first dilution was added to 2 mL of saline: 1/4 x 2/4 or 1/4 x 1/2 = 1/8 in 2nd tube . By transferring 2 mL of dilution from one tube to a second tube containing 2 mL of saline, and continuing to do so, this is actually making a 1:2 serial dilution. PROBLEMS: 1. You made a 1:2 dilution …

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    • [DOC File]Molarity and Dilution Lab

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      Chemistry: Dilution of Solutions Directions: Acids and bases are usually purchased in concentrated form. Rarely, however, do we want to use the acid or base in its concentrated form – we must dilute it to the exact concentration we want. Use the table below to help you answer the following questions.

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    • [DOC File]Solutions and Dilutions

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      Using the dilution formula, calculate the number of mL of your stock solution you need to make the dilution solution in part 2. EVERYONE MUST DO THIS CALCULATION, REGARDLESS OF WHETHER OR NOT YOU ACTUALLY MAKE THE SOLUTION. Questions – show calculations and use significant digits where appropriate. Write the formulas for molarity and dilution.

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    • [DOC File]Iris Automated Urinalysis: iQ® 200 Analyzer SW 7.0 Template

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      You do not need to agitate the solution during the entire aging time, but a mild mixing for 30 minutes will do no harm. Post dilution It is a questionable practice to design a system to make up a solution much stronger than 0.25% so as to reduce the size of the aging tanks.

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    • Dilutions: Explanations and Examples | Quansys Biosciences

      A 2-fold dilution is one part or mL of the stock solution with one part or 1 mL of diluent. For Dilutions Only: Using the algebraic formula below, one can calculate the volume, V1, of the initial stock solution or C1 to give the final working or secondary stock concentration, C2, and final working or …

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    • [DOC File]ASDL Community | Sharing Scientific Collections

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      Solutions are required for all functions in a laboratory setting. These reagents can be prepared based on four sets of calculations: mass/volume concentrations, % mass/volume concentrations, molarity concentrations, and dilutions of concentrated solutions.

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    • [DOC File]Comparing Mitosis and Meiosis

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      Do not attempt to blow out any remaining solution. The pipette has been calibrated to account for the last drop left inside. Part B: Concentration and Dilution Lab. Objectives. To mix a solution and determine its concentration. To perform three dilutions with your prepared solution. Concentration Procedure. Obtain a sample of CuSO4 from the ...

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