You are given a 2.8 mM solution of a protein (MW 27,000 g/mol). Using this information...
- You are given a 2.8 mM solution of a protein (MW 27,000 g/mol). Using this information fill in the blanks below to fit the units given.
- ___________________μmole/ml
- ___________________ g/L
- ___________________ mg/ml
- Convert 46.2 nmol/ml to μM.
- Convert 46.2 μmol/L to μM.
- Convert 46.2 nmol/μL to μM.
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You are given a 2.8 mM solution of a protein (MW 27,000 g/mol).
Using this information...
A 48.30 mL aliquot from a 0.460 L solution that contains 0.375 g of MnSO, (MW = 151.00 g/mol) required 39.9 mL of an ED...
A 48.30 mL aliquot from a 0.460 L solution that contains 0.375 g of MnSO, (MW = 151.00 g/mol) required 39.9 mL of an EDTA solution to reach the end point in a titration. What mass, in milligrams, of CaCO, (MW = 100.09 g/mol) will react with 1.82 mL of the EDTA solution? mass: mg
The molar absorptivity constant for the allergy drug Zyrtec (cetirizine) (MW 388.89 g/mol) is 7,250 L/mol*cm...
The molar absorptivity constant for the allergy drug Zyrtec (cetirizine) (MW 388.89 g/mol) is 7,250 L/mol*cm at 245nm. Given a stock solution with a cetirizine concentration of 0.537 mg/mL, specifically describe the best way to prepare a standard solution that would give you an absorbance of about 0.6 @ 245nm? What is the cetirizine concentration of that standard solution? 2) Describe exactly (show calculations) how you will prepare a 0.010 M Fell working stock solution from a stock solution that...
A chemist prepares a solution by adding 348 mg of K2Cr2O7 (MW = 294.19 g/mol) to...
A chemist prepares a solution by adding 348 mg of K2Cr2O7 (MW = 294.19 g/mol) to a volumetric flask, and then adding water until the total volume of the contents of the flask reaches the calibration line that indicates 750 mL . Determine the molarity of the prepared solution. Express the concentration in moles per liter to three significant figures. ► View Available Hint(s) Templates Symbols undo redo 'reset keyboard shortcuts help concentration = mol/L Submit Previous Answers Determine the...
4. (a) Determine the experimental concentration of protein in the unknown solution in mg/mL using the...
4. (a) Determine the experimental concentration of protein in the unknown solution in mg/mL using the Part II Data Table and the equation on page 2 for the absorbance assay at 280 nm. Hint: Convert the molar concentration (M or moles/liter) of BSA from absorbance assay at 280 nm method to mg/mL, assume that the molecular weight of BSA = 66.5 kDa [7 points 6500 g/mol Post-lab 10 Report Form: Determination the Concentration of a Protein You must show your...
A 10% solution of magnesium chloride (Mg C12-MW 95.211 g/mol) has been prepared by a technician for direct intraven...
A 10% solution of magnesium chloride (Mg C12-MW 95.211 g/mol) has been prepared by a technician for direct intravenous injection to a patient. While reviewing the order and preparation, you recall that this concentration seems to be abnormal. As a result, you want to determine the osmolarity of the solution. What is the osmolarity of this solution? Note: Please provide your answer in units of mOsmol/L.
Materials: NaOH MW = 40 g/mL, KHP - potassium hydrogen phthalate, KHC8H404, MW = 204.23 g/mol....
Materials: NaOH MW = 40 g/mL, KHP - potassium hydrogen phthalate, KHC8H404, MW = 204.23 g/mol. Acetic acid, HC2H302, MW = 60.05 g/mol Part 1: Standardization of NaOH Assume 0.951 g of KHP is weighed and transferred to a 250 mL Erlenmeyer flask. Approximately 50 ml water is added to dissolve the KHP. Note that the exact volume of water is not important because you only need to know the exact number of moles of KHP that will react with...
In your Analysis of Carboxylic Acids you prepared and calibrated the NaOH (Mw 40.00 g/mol) solution...
In your Analysis of Carboxylic Acids you prepared and calibrated the NaOH (Mw 40.00 g/mol) solution with Potassium Acid Phthlate (KHP MW 204.22 g/mol). You weighed 2.4 g of NaOH and added it to 400. ml of DI to prepare the NaOH solution. You then calibrated the NaOH solution by titrating it against KHP. If you used 1.0702 g of KHP and titrated it with the NaOH solution (See Photos Below of the start and end burette reading), what was...
Materials: NaOH MW = 40 g/mL, KHP - potassium hydrogen phthalate, KHC8H404, MW = 204.23 g/mol....
Materials: NaOH MW = 40 g/mL, KHP - potassium hydrogen phthalate, KHC8H404, MW = 204.23 g/mol. Acetic acid, HC2H302, MW = 60.05 g/mol Part 1: Standardization of NaOH Assume 0.951 g of KHP is weighed and transferred to a 250 mL Erlenmeyer flask. Approximately 50 ml water is added to dissolve the KHP. Note that the exact volume of water is not important because you only need to know the exact number of moles of KHP that will react with...
Part 3. Problems 1) The molarity of naphthaline in a solution of naphthalene (CH. MW-128.8), a...
Part 3. Problems 1) The molarity of naphthaline in a solution of naphthalene (CH. MW-128.8), a non-ionizing and nonvolatile solute, and benzene (C.HS, MW = 78.11), a volatile solvent, is [CHx] = 0.125 M. The density of the solution is D= 0.8781 g/cm! Find the following: a) The osmotic pressure exerted by the solution, at T = 25.0°C. Give your final answer in units of torr. [8 points] b) Xn, the mole fraction of naphthalene in the solution. [15 points)...
1. You prepare a NaCl solution by dissolving making 250mL solution out of 0.1409 g of...
1. You prepare a NaCl solution by dissolving making 250mL solution out of 0.1409 g of NaCl (MW = 58.443 g/mol). You use this solution to standardize a Hg(NO3)2 solution. The volume of Hg(NO3)2 needed to titrate 10 mL of NaCl is 4.017 mL what is the molarity of the a Hg(NO3)2 solution? Note: Hg2+ + 2 Cl → HgCl2 2. Using the Folin-Wu tungstic acid method you pipet 10 mL of a serum sample and precipitate the protein (Note:...
A 48.30 mL aliquot from a 0.460 L solution that contains 0.375 g of MnSO, (MW = 151.00 g/mol) required 39.9 mL of an EDTA solution to reach the end point in a titration. What mass, in milligrams, of CaCO, (MW = 100.09 g/mol) will react with 1.82 mL of the EDTA solution? mass: mg
The molar absorptivity constant for the allergy drug Zyrtec (cetirizine) (MW 388.89 g/mol) is 7,250 L/mol*cm at 245nm. Given a stock solution with a cetirizine concentration of 0.537 mg/mL, specifically describe the best way to prepare a standard solution that would give you an absorbance of about 0.6 @ 245nm? What is the cetirizine concentration of that standard solution? 2) Describe exactly (show calculations) how you will prepare a 0.010 M Fell working stock solution from a stock solution that...
A chemist prepares a solution by adding 348 mg of K2Cr2O7 (MW = 294.19 g/mol) to a volumetric flask, and then adding water until the total volume of the contents of the flask reaches the calibration line that indicates 750 mL . Determine the molarity of the prepared solution. Express the concentration in moles per liter to three significant figures. ► View Available Hint(s) Templates Symbols undo redo 'reset keyboard shortcuts help concentration = mol/L Submit Previous Answers Determine the...
4. (a) Determine the experimental concentration of protein in the unknown solution in mg/mL using the Part II Data Table and the equation on page 2 for the absorbance assay at 280 nm. Hint: Convert the molar concentration (M or moles/liter) of BSA from absorbance assay at 280 nm method to mg/mL, assume that the molecular weight of BSA = 66.5 kDa [7 points 6500 g/mol Post-lab 10 Report Form: Determination the Concentration of a Protein You must show your...
A 10% solution of magnesium chloride (Mg C12-MW 95.211 g/mol) has been prepared by a technician for direct intravenous injection to a patient. While reviewing the order and preparation, you recall that this concentration seems to be abnormal. As a result, you want to determine the osmolarity of the solution. What is the osmolarity of this solution? Note: Please provide your answer in units of mOsmol/L.
Materials: NaOH MW = 40 g/mL, KHP - potassium hydrogen phthalate, KHC8H404, MW = 204.23 g/mol. Acetic acid, HC2H302, MW = 60.05 g/mol Part 1: Standardization of NaOH Assume 0.951 g of KHP is weighed and transferred to a 250 mL Erlenmeyer flask. Approximately 50 ml water is added to dissolve the KHP. Note that the exact volume of water is not important because you only need to know the exact number of moles of KHP that will react with...
In your Analysis of Carboxylic Acids you prepared and calibrated the NaOH (Mw 40.00 g/mol) solution with Potassium Acid Phthlate (KHP MW 204.22 g/mol). You weighed 2.4 g of NaOH and added it to 400. ml of DI to prepare the NaOH solution. You then calibrated the NaOH solution by titrating it against KHP. If you used 1.0702 g of KHP and titrated it with the NaOH solution (See Photos Below of the start and end burette reading), what was...
Materials: NaOH MW = 40 g/mL, KHP - potassium hydrogen phthalate, KHC8H404, MW = 204.23 g/mol. Acetic acid, HC2H302, MW = 60.05 g/mol Part 1: Standardization of NaOH Assume 0.951 g of KHP is weighed and transferred to a 250 mL Erlenmeyer flask. Approximately 50 ml water is added to dissolve the KHP. Note that the exact volume of water is not important because you only need to know the exact number of moles of KHP that will react with...
Part 3. Problems 1) The molarity of naphthaline in a solution of naphthalene (CH. MW-128.8), a non-ionizing and nonvolatile solute, and benzene (C.HS, MW = 78.11), a volatile solvent, is [CHx] = 0.125 M. The density of the solution is D= 0.8781 g/cm! Find the following: a) The osmotic pressure exerted by the solution, at T = 25.0°C. Give your final answer in units of torr. [8 points] b) Xn, the mole fraction of naphthalene in the solution. [15 points)...
1. You prepare a NaCl solution by dissolving making 250mL solution out of 0.1409 g of NaCl (MW = 58.443 g/mol). You use this solution to standardize a Hg(NO3)2 solution. The volume of Hg(NO3)2 needed to titrate 10 mL of NaCl is 4.017 mL what is the molarity of the a Hg(NO3)2 solution? Note: Hg2+ + 2 Cl → HgCl2 2. Using the Folin-Wu tungstic acid method you pipet 10 mL of a serum sample and precipitate the protein (Note:...
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