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[DOC File]AP Chemistry Lab Manual - PC\|MAC
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What is the molar mass of the gas? What volume of H2O gas can be produced from 20.0g of oxygen and excess hydrogen at 150.0 C and .5atm? In an experiment, it takes an unknown gas 1.5 times longer to diffuse than the same amount of oxygen gas, O2. Find the molar mass of the unknown gas. 8 and 9 Practice worksheet. 1.
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[DOC File]Inflammation
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1) a number of dilutions of the same dilution factor are desired. Example: You want to make a series of solutions with a repeating dilution factor of 2; in other words, the concentration of each diluted solution should be half that of the. dilution before it (such as 2 M, 1 M, 0.5 M, 0.25 M).
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Acid Strength
The graph of pH vs Molar concentration is logarithmic. The analysis on my calculator gave me the following relation: Y = 2.5486 + (-0.2337 ln X) where Y is pH and X is Molarity. This means that the pH decreases as the concentration of the acid increases. This relation has a limited application as maximum acid concentration is 12 to 14 M
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[DOC File]Standardizing a Sodium Hydroxide (NaOH) Solution
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Objective: This lab focuses on the detection of ions using titration as an analysis tool. You will standardize NaOH and HCl solutions so that you know the exact concentration and then prepare samples of common household items in order to determine the amount of calcium in …
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[DOC File]Chemistry 101L - Kentucky Department of Education
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2. Fill a Beral pipette with 6 molar sulfuric acid. 3. Place the Beral pipette with 6 molar sulfuric acid in the plastic bag with the KNO2. 4. Place the smaller bag inside the larger bag. 5. Smooth out the bag so it contains a minimum amount of air and then seal the bag. (Take care not to press against the pipette.) This is the nitric oxide ...
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[DOC File]Name: __________________________ Date ...
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= 1.0 molar 1 1 x 10-1 = 0.1 molar 5 1 x 10-5 = 0.00001 molar 7 1 x 10-7 = 0.0000001 molar 10 1 x 10-10 = 0.0000000001 molar Since normal dissociation of water molecules into H+ and OH- yields 10-7 moles of H+, pure water has a . pH of 7, the . neutral. point in the scale.
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[DOC File]DILUTIONS AND STANDARDS
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4. "Serial dilution" - This term is frequently used and refers to a "multiple" dilution problem. In other words, an initial dilution is made and then this dilution is used to make a second dilution, and so on. For example, a 1:2 serial dilution is made using a 1 mL volume of serum.
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[DOC File]Solutions - Quartzland
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2.0 moles NaOH/ 1 Liter solution = 2.0 molar NaOH = 2.0 M NaOH. Calculate molarity (moles/Liter) Convert: Liters ( moles ( grams. Grams ( moles ( Liters. c) Dilution. Conc1 x Vol1 = Conc2 X Vol2. d) Percent composition = (grams solute/grams solution) x 100. Convert grams solute (( grams solution. grams solute ( ( grams solvent
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[DOC File]Inflammation
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b) The food coloring dilution in part (a) can also be referred to as 1:9 food coloring to water. The colon (:) means “to.” A 1:10 food coloring to water dilution would be 1/11, not 1/10, because the total number of parts is 11. c) Frequently, stock solutions in biotechnology labs are concentrated and must be …
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[DOC File]Calculations
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Rather than reaching for the formula and the calculator, let’s use the principles above. A 0.01 M solution is equivalent to 10 mM and contains 10 mmol/L or 10 mol/mL ( 5 mol in 0.5 mL. This 5 moles is now in a final volume of 20 mL ( 5 mol/20 mL ( 250 M or 0.25 mM.
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Dilution calculator molar