Compound Boiling pt. Density in g/mL Volume in Weight in Moles Mol. Wt. in °C mL 2-methyl- 2-butanol 2-methyl- ---- ---- ---- ---- -- 1-butene 2-methyl- 2-butene
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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 A8. Which is the correct order for a recrystallization procedure?a. solvent selection-dissolving-deposition and collection of crystals-filtration-washing-dryingb. solvent selection-dissolving-filtration-deposition and collection of crystals-washing-dryingc. solvent selection-dissolving-deposition and collection of crystals-washing-filtration-dryingd. solvent selection-dissolving-filtration-washing-deposition and collection of crystals-dryinge. solvent selection-filtration-dissolving-deposition and collection of crystals-washing-dryingName the active depigmentation ingredients in the following Facial Lotion, (PEG 8-propylene glycol; 2-ethyl-hexyl salicylate; thioglycine;Hydroquinone;NaHSO,/Na,SO;; Al-citrate; Ethanol, Water) 1. 2 3 .. *....
- How much drying agent, MgSO4, would be needed for drying of 20mL dichloromethane solution that contains 0.01% water, knowing that each mole of MgSO, can absorb 7 moles of H;0?pure liqu PB liquid x solution B Esure solid x liquid x (saturate»Explaining Vapor Pressure in Terms of IMFs Given the shown structural formulas for these four compounds, explain their relative vapor pressures in terms of types and extents of IMFs: OH I H₂C-CH₂ ethanol HO OH | | H₂C-CH₂ ethylene glycol Solution CH₂CH₂OH: H-bonding & LDF. CH₂OHCH₂OH: Stronger H-bonding than ethanol (also LDF), and higher MM than H₂O. More viscous than ethanol, thus quite a low P vap. CH3-CH₂-0-CH₂ CH3 and H-O-H diethyl ether water C4H₁0O: Dispersion forces AND dipole-dipole. Diethylether is quite a volatile substance, with quite a high Pvap: vap• H₂O: H-bonding & LDF. Although the molecule with the LOWEST Molar Mass, it has Of the choices above, ONLY ethylene glycol has a LOWER Pvap- a low Pvap. LOWEST Pvap HIGHEST PvapAlasia Fuqua- Learn C = X www.awu.aleks.com F (SPAN-101-001) Beginning Spa VHL Central Sections sodium hydroxide - Google Se ickscoux/isl exe/tou IgNsiki7/8P3/H (BjuJnuCDtT6kRBabGFF3MOAKZ UVx0N202g8ikmjKtyy8Ti 165KZNcy/ErWEdBMk4J069E6ABLCdRK1ZucrG0Tdp5CNtzq?1oBw7QV O ACIDS AND BASES Predicting the relative acidity of binary acids Exanation X Check X Enter the chemical formula of a binary molecular compound of hydrogen and a Group 6A element that can reasonably be expected to be less acidic in aqueous solution than H₂Se, e.g. have a smaller K. X X + 3 3/5 2023 McGraw Hill LLC. All Rights Reserved. Terms of Use Privacy Center Alasia B ? dla M Jan 23 * D ☐ 8:44 098 X ⠀°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 | AccessibilityWhich of standard substance (or standardized solution) is correct standardization of Na2S½O;: for Na,Cr2O7; Na,B,O, 10H2O; H,C,O4 2H2O; As,O;;1.Prepare 250ml of 70% and 90% ethyl alcohol from 95% ethyl alcoholusing the formula: C1V1=C2V2.I s it possible to carry out steam distillation at a temperature higher than 100C at 1 atm? ExplainCalculate the moles and mass of Zn(NO3)2 in 29.3 cm³ of 0.952 moldm solution (ii) Relative formula mass of Zn(NO3)2 = 189.4 Moles: ...mol Mass: (iii) Calculate the moles and mass of H2SO4 in 29.3 cm³ of 0.952 moldm3 solution Moles: ...mol Mass: ....SEE MORE QUESTIONS