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[DOC File]Determination of the Solubility Product of an Ionic Compound
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Continue this serial dilution procedure, adding 5 drops of the previous solution to the 5 drops of water in each well down the row until you fill the last one, #12. Mix the solution in well #12, and discard 5 drops. Determine the concentration of solution in each well. (Hint: the concentration of calcium ions in well #12 is 4.9 x 10-5 M.)
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[DOC File]QUALITY ASSURANCE MANUAL - Indiana
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The BOD5 concentration of 198+ 30.5 mg/L for this standard is based on a 2% dilution of GGA (6mL/300 ml BOD bottle). It is important not to use dilutions other than the 2% dilution. Seed is then added and the bottles filled with BOD dilution water.
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[DOC File]DILUTIONS AND STANDARDS
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2. To determine the dilution that must be made to yield a working standard of the desired concentration, we use the following equation: desired concentration of working std./concentration of stock std. = dilution required. Using the information from our …
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[DOCX File]WERG method for calculating concentrations from ICP ... - NDSU
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Multiply the concentration by the total extraction volume and the dilution factor, then divide by the sample weight = concentration in mg kg-1. Determine the MDL by multiplying the DL by the typical sample extraction volume and the dilution factor, then dividing by the typical sample weight = concentration in mg kg-1.
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[DOCX File]Department of Biology | College of Arts and Sciences
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The dilution factor at each dilution step is usually kept constant, resulting in a logarithmic decrease in solute concentration at each step Figure 2 For example a tenfold serial dilution of a 1M solution would result in sequentially more diluted solutions, as follows:
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[DOC File]USING A CONDUCTIVITY PROBE
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USING A CONDUCTIVITY PROBE. Dilution Lab. This lab will refine your laboratory skills, while you practice some useful and important laboratory techniques. When faced with the need to design an experiment, an experimenter may require that the independent variable be diluted to different concentrations prior to application to a test system. For ...
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[DOC File]Determination of Biochemical Oxygen Demand (BOD5)
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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]Preparing and Diluting Solutions
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Molarity and dilution calculations show us how to prepare solutions of known concentration. Another important problem chemists encounter in the lab is how to determine the concentration of an unknown solution. If the solution is colored, the concentration of an unknown solution can be determined by measuring the intensity of the color.
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[DOCX File]WORKSHEET ON SOLUTION CONCENTRATIONS
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Calculate the concentration of a solution of CO2in water, which contains 20.25 g of CO2per 675 mL of solution. a. Start with what you know, change grams of CO2to moles of CO2. b. With the moles value found in part a, use the concentration formula to calculate the. concentration.
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Concentration dilution calculator