Which of the following conditions is optimal for a sublimation experiment? At Room Temp. At high Temp. Choice #1 Solute insoluble in the Solute soluble in the solvent solvent Choice #2 Solute insoluble in the Solute insoluble in the solvent solvent Solute sparingly soluble Solute soluble in the In the solvent Solute insoluble in the Solute insoluble in the Choice #3 solvent Choice #4 solvent solvent O a. Choice #3 O b. Choice #4 Oc. Choice #1 O d. Choice #2
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- POin Elevation Aselution in preparnd by dissolving 15.60gof ordinary ger (sueroe, CHO, molecular weight-342 amu) in 15.00 gof water Calculante the boiling peier of the solution Sacose i anovolatile nonelectrolyte Solvent TC) THC) rCkg/mal) rChg/moll Benzene, Cal 80.1 253 55 530 Camphor, Cato 204 176 37.7 Cyciohexane, CH B0.88 2.79 6.50 202 Nitrobenzene, Cll, NO, 2108 524 81 water, H0 100.0 0.00 Submit Sho A h E Try AWindow Help of Liquids Solids.pdf 10 Date Section Name Post-Laboratory Questions (Use the spaces provided for the answers and additional paper if necessary.) 1. The density of ice at 0°C is 0.9168 g mL, and that of liquid water at 0°C is 0.9999 g mL-. (1) What are the volumes of 1.000 g of ice and of 1.000 g of water at 0°C? SEP étv 21 DII DD F10 F9 F7 F8 F5 F6 F3 F4 0/ &Indicate which of the two filtration techniques, gravity ( G ) or vacuum ( V ), is suitable for each of the following operations. a) Hot filtration b) Removal of decolourising carbon c) Isolation of recrystallized solute from solution.
- KMnO4 and Na2C2O4 solutions were used in the reactions that took place in a back titration to determine the amount of H2O2 in a sample. Calculate the concentration of H2O2 in the sample (w / v) as% by making appropriate assumptions for the volumes and normality of all these solutions.ks.com/alekscgi/x/Isl.exe/1o_u-IgNslkr7j8P3jH-IQUHIQg6bJxmeSyVpHOEB1plef9xyC5Ca9Q15ULF571w. A to ©T GI O STATES OF MATTER Finding mass or volume from percent concentration 0/5 Ma Lidocaine, a widely used local anesthetic, is available as a 0.50 %(w/v) solution for injection. Calculate the volume of this solution that contains 90. mg of lidocaine. Be sure your answer has a unit Symbol and is rounded to the correct number of significant digits. X10 Explanation Check O 2022 McGraw Hill LLC. All Rights Reserved. Terms of Use Privacy Center Accessibility Insert Delete F12 PriScr F10 F11 F9> EL session.masteringchemistry.com MasteringChemistry ROSTER-2019-SPRI-PULLM-CHEM-101 blackboard wsu Google Search MasteringChemistry: HW 8 KHW 8 Applications for Dilution Calculations K8 of8 Dilution as a procedure in analysis We sometimes purposely dilute solutions if the analyte concentrations wavelengths in the visible (and sometimes uitraviolet) range. Based on the dissolved solute's properties, we can quantify that solute's concentration are too high to permit an accurate measurement. For example, a spectrophotometer can measure the amount of light that passes through a sample solution for If the solute's concentration is too high, a relatively small amount of incident light having the wavelength that corresponds to the solute's absorption behavior will less light is absorbed, and the detector in the spectrophotometer can generate more reliable data. reach the dete ctor, which results in an inaccurate measurement (consider the result if you blocked the light with an opaque…
- °F rtly cloudy m/alekscgi/x/Isl.exe/1o_u-lgNslkr7j8P3jH-lvWyv8WYLP6W0cqJcWJdIACROQwyw24GWHInMM72ts 1 NTBcSzwZOGGhrmIP4yCejeRhX9HIzqlzRTj2iaDBXTCRIHYWNO_-o?10... O CHEMICAL REACTIONS Calculating molarity using solute moles A chemist prepares a solution of mercury(II) iodide (HgI₂) by measuring out 0.0161 μmol of mercury(II) iodide into a 300. mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in μmol/L of the chemist's mercury(II) iodide solution. Round your answer to 3 significant digits. µ mol L Explanation Check x10 X Ś Q Search 2023 McGraw Hill LLC. All Rights Reserved. Terms of Use **************** D 1/5 www Jessi Privacy Center | AccessibilityA 10 g sample of Mg504 · 7H/₂0 (246.48 2/mp) oven at 105 °C was heated in an until all the waters of hydration was evaporated off to generate MgSO4 (mhydrous). The sample was then dissolved in 250 mL of distilled water and diluted to a final volume of amount of 504²- in ppm in 0.56. The the final solution is ? motor masses in g/mol = My5o4 · 71/₂0 7/₂0 = 206 246.48, H/₂0 = 18.02 طلا6 Methods that employ separation of the product chemically through precipitation, with purification, drying and weighing of the resultant product: A. Spectrophotometric analysisB. Volumetric analysisC. Gravimetric analysisD. Gasometric analysis7 Phase changes involving fusion, except:a. Solid to liquidb. Liquid to solidc. Gas to liquidd. Gas to solid
- a concentrated H2SO4 has the following composition specific gravity 1.84 and purity of H2SO4 is 97 percent by weight. express in mole/LTrituration is a process of reducing particle size which involves the addition of an appropriate solvent. Select one: True Falseshort, 1-minute survey. DISMISS 5. In the Dumas method for determining the molar mass of an unknown volatile liquid, a sample of a volatile liquid that boils below 100°C is vaporized in a boiling water bath and the mass of the vapor required to fill the flask is determined. The following data was collected: 4oFlask Volume 100.0 + 100.0 + 79.6 mL = 279.6 mL Mass of Flask + Cap Mass of Flask + Condensed Liquid Mass of Condensed Liquid Temperature of Water Bath (°C) Barometric Pressure (atm) 143.85 g 144.95 g 1.10 g 84.1 °C 0.985 atm a. What is the molar mass of the unknown? b. What will its temperature be when the pressure is 1.20 atm and the volume is 250.0 mL?