Mg ml to mol l
[DOC File]Lab Math
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Common units for concentration measurements include mol/L, mmol/L, mg/L, mg/dL, and μg/mL. Others are also used. You need to be able to convert between these measurements readily. (Note that concentrations in mol/L are also called molar, and abbreviated M. A 2.5 mM solution, contains 2.5 mmol/L) Examples:
[DOC File]Comparing Mitosis and Meiosis
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The “L” units cancel out and the “mol” units cancel out, leaving the mass in grams of the solutes needed to make the solution. Ex. A technician needs 50 mL of 0.5 M NaCl solution for an experiment. Using the Molarity Concentration Equation, the calculation would be as follows: 0.05 L x 0.5 mol/L x 58.5 g/mol …
[DOCX File]Archbishop O'Leary High School - HOME
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A lab group decides to test a manufacturer’s claim that an antacid product contains 200 mg of sodium bicarbonate. Each tablet was placed into an Erlenmeyer flask, 10.00 mL of water was added, and then the tablets were crushed. An indicator was added to each flask, and then each sample was titrated with 0.200 mol/L hydrochloric acid.
[DOC File]Group Quiz: Solubility Unit Problems (Due Monday)
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a) the solubility in moles/L of each of three salts and b) the concentration of the cations in mg/mL in each of the saturated solutions. i) AgCN Ksp = 2.0 x 10-12
[DOC File]Calculations - University of Sydney
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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. The key to doing this problem is to convert the concentration to sensible units i.e. M ( mol/mL.
[DOC File]Mr. Arthur's Science Page - home Page
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4. Formalin is an aqueous solution of formaldehyde, HCHO, used to preserve biological specimens. What mass of formaldehyde is needed to prepare 1.5 L of formalin with a concentration of 10 mol/L. (5 marks) 5. By the addition of water, 80.0 mL of 4.00 mol/L sulphuric acid, is diluted to 400.0 mL.
[DOC File]Chapter 1 - Solutions
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Moles NaOH = 0.0174 mL HCl soln 0.312 mol HCl 1 mol NaOH = 5.429 x 10-3 mol . L soln 1 mol HCl [NaOH] = 5.429x 10-3 mol = 0.2172 mol/L . 0.0250 L . 94) Sodium carbonate (Na2CO3) is available in very pure form and can be used to standardize acid solutions.
[DOC File]Experiment 5: EDTA Determination of Calcium and Magnesium
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Sample Calculation: 1.0 g CaCO3 x 1 mol CaCO3 / 100.09 g = 0.01 M CaCO3 1 L. Standardize your EDTA solution by using a 25 mL volumetric pipet to measure the calcium carbonate standard solution into a 250 mL Erlenmeyer flask. Add 10 mL of pH 10 NH4/NH4OH buffer and 10 mg of …
[DOC File]Productivity Calculations SOLUTIONS
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During the week, 5 mg O2/ L was consumed by RESPIRATION. This is… 5 mg O2 / L-wk * (3 x 10-5 moles of oxygen/ mg O2 )* (1 mol C / 1 mol O2 ) = 15 x 10-5 moles of C/L-wk. Then we work with the light bottle: Start = 10 mg O2/L After 1 week = 11 mg O2/L. During the week, 1 mg O2/L was PRODUCED—both photosynthesis and respiration were going on ...
[DOC File]AP Chemistry
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.0353 L Mg(Cl)2 x .125 mol Mg.. = 4.41 x 10-3 mol Mg.. 1 L Mg.. 4.41 x 10-3 mol Mg.. x 1 mol Sr.. = 4.41 x 10-3 mol Sr.. 1 mol Mg.. 4.41 x 10-3 mol Sr../0.0548 L = 0.0805 M Sr(OH)2 41. 2 HCl(aq) + Sr(OH)2(aq) SrCl2(aq) + 2 H2O(l) 15.7 mL of 3.00 M Sr(OH)2 react completely with 25.0 mL of the HCl. What is the molarity of HCl?
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