You have a stock solution certified by a manufacturer to contain 220.0 + 0.4 ug So /mL. You would like to dilute it by afactor of 100 to obtain 2.200 ug/mL.. Two possible methods of dilution are stated. For each method, calculate the resultingabsolute uncertainty in concentration. Use the manufacturer's tolerances in the table for uncertainties.GlasswareTolerance1-ml. transfer pipet+0.006 ml.10-ml transfer pipet10.02 mL100-ml volumetric flask+0.08 mLMethod A: Dilute 10.00 mL up to 100 mL with a transfer pipet and volumetric flask. Then take 10.00 ml of the dilutesolution and dilute it again to 100 mL.absolute uncertainty: = 1.4Mg/ml.IncorrectMethod B: Dilute 1.000 mL up to 100 mL with a transfer pipet and volumetric flask.absolute uncertainty: +0.6Incomect

Method A: Dilution of 10.00 mL (transfer pipet) 215.0 g/mL stock solution to 100 mL (vloumetric…

You have a stock solution certified by a manufacturer to contain 220.0 + 0.4 ug So /ml. You would like to dilute it by a factor of 100 to obtain 2.200 g/ml. Two possible methods of dilution are stated. For each method, calculate the resulting absolute uncertainty in concentration. Use the manufacturer's tolerances in the table for uncertainties. Glassware Tolerance 1-ml. transfer pipet 20.006 ml. 10-ml transfer pipet 10.02 ml. 100-ml volumetric flask 10.08 ml Method A: Dilute 10.00 ml up to 100 mL with a transfer pipet and volumetric flask. Then take 10.00 mL of the dilute solution and dilute it again to 100 ml. absolute uncertainty: = 14 He/ml. Incemet Method B: Dilute 1.000 mL up 10 100 mL with a transfer pipet and volumetric flask. absolute uncertainty: 0.6 Helml.

You have a stock solution certified by a manufacturer to contain 220.0 + 0.4 ug So /ml. You would like to dilute it by a factor of 100 to obtain 2.200 g/ml. Two possible methods of dilution are stated. For each method, calculate the resulting absolute uncertainty in concentration. Use the manufacturer's tolerances in the table for uncertainties. Glassware Tolerance 1-ml. transfer pipet 20.006 ml. 10-ml transfer pipet 10.02 ml. 100-ml volumetric flask 10.08 ml Method A: Dilute 10.00 ml up to 100 mL with a transfer pipet and volumetric flask. Then take 10.00 mL of the dilute solution and dilute it again to 100 ml. absolute uncertainty: = 14 He/ml. Incemet Method B: Dilute 1.000 mL up 10 100 mL with a transfer pipet and volumetric flask. absolute uncertainty: 0.6 Helml.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Similar questions

PURIFICATION OF WATER This is an experimental set-up for the purification of water experiment. State uses of each labeled parts in relation to te purification of water experiment.
逐步解决不使用人工智能出色完成工作非常感谢您的支持 SOLVE STEP BY STEP IN DIGITAL FORMAT DON'T USE AI | DON'T USE AI | DON'T USE AI | DON'T USE AI | 2. An ethyl alcohol solution that is 75% alcohol by weight is to be used as a bactericide. The solution is to be prepared by adding water to a 95% ethyl alcohol solution. How many grams of each should be used to prepare 400 grams of the bactericide?
w w w w w T Concentration (grams/kg H₂O) 1000 900 800 700 600 500 400 300 200 100 0 0 Solubility Curve for Potassium Dichromate (K₂Cr₂O₂) 10 20 30 40 50 60 70 80 90 100 Temperature (Celsius) Use the solubility curve for questions 22-25. You put 480 g K₂Cr₂O, in 1 kg of water? At which temperature will the 22. solution be saturated? A. 40 °C B. 70 °C C. 1000 °C D. Equal amounts of K₂Cr₂O; will dissolved at all of the listed temperatures. You put 150 g K₂Cr₂O7 in 1 kg of water? At which temperature will the 23. solution be saturated? A. 30 °C B. 50 °C C. 80 °C D. K₂Cr₂O, will dissolved equal fast at all of the listed temperatures.
Sources of error: Method 1 Equipment:About ten grams of NaHCo3. 10 ml distilled waterSmall beaker Electronic balanceGlass dome10 ml graduated cylinderGlass rod Safety instructions :Wear safety goggles Wear a smockBe deilcate with materials Method:Measure out 10 ml of distilled water using the graduated cylinder. Transfer the water to the small beaker.Weigh out the total amount of sodium chloride available for the experiment.Weigh out 0.5 g NaHCo3. Add NaHCo3 to beaker containing water. Stir solution with glass rod until dissolved.Repeat step 3 until it becomes more difficult to dissolve the NaHCo3. Note the number of times 0.5 g NaHCo3 is added.Continue adding one grain of NaHCo3 at a time until it is no longer possible to dissolve it.Once saturation is reached, NaHCo3 crystals form at the bottom of the beaker.Measure the mass of NaHCo3 not added to determine the total amount of NaHCo3 that has exceeded the solubility limit.
Can you please help me with 5
Two aqueous hydrogen bromide solutions containing 1.00 wt% HBr (SG=1.0041) and 60.0 wt% HBr (SG=1.6731) are mixed to form a 3.54 M HBr solution (SG=1.1935). What feed rate of the 60.0 wt% HBr solution would be required to produce 1350 kg/hr of product?
The solubility of PbCO3 in water at 25°C is measured to be 7.3x10−5g/L. Use this information to calculate Ksp for PbCO3. Round your answer to 2 significant digits.
environmental chemist working for the Environmental Protection Agency (EPA) was directed to collect razor clams from a heavily-contaminated river superfund site and analyze them for cadmium (Cd²+) content using graphite furnace atomic absorption spectrometry (GFAAS). The chemist dried the clams at 95° C overnight and ground them in a scientific blender, resulting in ~ 50 g of homogenized dry weight. A representative 61.00 mg sample was taken from the ~ 50 g of dry material and dissolved in 100.00 mL of 0.1 M HCI to create a sample solution. Using the method of standard additions, the chemist prepared five standard solutions in 100.00-mL volumetric flasks, each containing 5.00-mĹ aliquots of the sample solution. Varying amounts of a 87.0 ppb (ug · L-1) cadmium standard were added to each of the flasks, which were then brought to volume with 0.1 M HCI. The solutions were then examined for their Cd²+ content using GFAAS, resulting in the following absorbance data. Sample Vol. (mL) Cd2+…
4. What is the volume, in pints, of 50 lb of glycerin having a specific gravity of 1.25? 5. Lactic acid is available as a liquid containing 85 g of the acid in 100 g of solution (sp gr 1.21). Calculate the quantity of this solution, in milliliters, needed to fill the prescription. Lactic acid 1.5 g Salicylic acid aa. Flexible collodion qs ad Sig: Apply one drop to wart twice a day Label: Wart remover. For external use only 15 mL
Before Investigating the scene the technician must dilute the luminol solution to a concentration a 2.00 × 10-2 M. The diluted solution is then placed in a spray bottle for application on the desired surfaces. How many moles of luminol are present in 2.00L of the diluted spray?
4
Show your complete solution and round-off your answers to four decimal places. A 0.1093-g sample of impure Na2CO3 was analyzed by the Volhard method. After adding 50.00 mL of 0.06911 N AgNO3, the sample was back titrated with 0.05781 N KSCN, requiring 27.36 mL to reach the end point. Calculate the % purity of the Na2CO3 sample. Answer = _% Na2CO3