Name: Condensed Molecular Structural Formula Formula Sketch Ethers Dimethyl ether CH,-O-CH, C,H,O b.p. =-23.6°C (refrigerant] %3! Diethyl ether CH,CH,-O-CH,CH, C,H,,O b.p. 34.6°C (solvent for oils, waxes, and perfumes] %3!
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- 2. How many mL of a 0.250 M KCI solution must be diluted to 1.000 L so that the diluted solution (density = 1.00 g/mL ) is 400 ppm K* by weight ? (MW KCI = 74.55; AW K = 39.10)Cyclohexanol 10 ml Mass of cyclohexanol 9.62 g – 0.053 mol Theroretical yield cyclohexene–7.89g - ? mol Therotical mass of cyclohexene- Actual yield- 6.8ml –4.055 g –? mol Percent yield- 51.04% Boiling point of cyclohexene -83 degree Celsius Theroretical boling point -83 degree Celsius can i get some clarification plscricket A ♡ | 32% 8:47 PM 25. Some people like to make their own hand lotion because it can be less expensive than buying it and they have the ability to add only the fragrances that they like. A recipe for hand lotion calls for mixing 327 g of water (H,O) with 311 g of glycerin (C3H3O3). This recipe makes a total of 550. mL of hand lotion. (a) What is the mass percent of glycerin in the hand lotion? (b) What is the molarity of glycerin in the hand lotion? OÇR OCR Sign Delete
- 1-Pentanol to 1-bromopentane Chemicals: - 60ml Conc. Sulfuric Acid - 100ml Saturated Sodium bicarbonate - 65ml 1-Pentanol - 78g sodium bromide - Distilled water - 58.42g 1-Bromopentane 1-Pentanol Sodium Bromide Sulfuric Acid 1-Bromopentane Formula C5H12O NaBr H2SO4 C5H11Br MW (g/mol) 88.15 102.894 98.078 151.04 Density (g/mL) 0.811 3.21 1.84 1.218 Boiling point (*C) 138 1,396 337 130 NaBr(aq) + H2SO4(aq) -> NaHSO4(aq) + HBr(aq) CH3(CH2)4OH(aq) + H+ Br- (aq) CH3(CH2)4OH2 (aq) + Br-(aq) CH3(CH2)4OH2 (aq) + Br-(aq) CH3(CH2)4Br(aq) + H2O(aq) How do I calculate the percent yield and identify the limiting reagent?= STATES OF MATTER Applying like dissolves like For each solute, click the button under the better solvent. H H HO U C solute H I 2 CIH Η 2=0 CaC1₂ H H CH₂ - CH₂-OH Which is the better solvent? CH₂(CH₂) CH3 H₂O CH₂ CH₂OH :0: || CH₂- - CH3 I CH CC14 CH₂OH - CH3 0/5Explaining 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 PvapA solution is prepared by dissolving 10 g (NH:):SO4 in enough water to make 100.0 mL stock solution. A 11.00-mL sample of this stock solution is then placed in a 50.00-mL volumetric flask and diluted to the mark with water. What is the molarity of the new solution? (MW of (NH.)»SO« = 132.14 g/mol) %3DThe weight percent %W/W of a saturated solution of potassium chloride in 200CO was: (NOTE: the solution contain 298g/L and D=1.17g/cm3) * 40.66%W/W W/W% 75.20 W/W% 25.47 10.54%W/WExplain why 162g of NaOH is dissolved in 150 ml water and how dissolving 54.5ml dilutes it to 1N (show computations). Preparation Of IN Sodium Hydroxide: Dissolve 162 gm of sodium hydroxide in 150 mL of carbon dioxide free water, cool the solution to attain room temperature. Transfer 54.5 mL of above solution to 1000 mL of water. Standardization Of IN Sodium Hydroxide: Weigh accurately about 5gm of potassium biphthalate (Potassium Hydrogen phthalate), previously dried at 120°C for 2 hrs. and dissolve in 75 mL of carbon dioxide-free water.K o Mail - Thomps 2 8 https://app.101edu.co P Parchment Rel 3 80 F3 1 Write the balanced NET ionic equation for the reaction when Al(NO3)3 and Na3PO4 are mixed in aqueous solution. If no reaction occurs, simply write only NR. Be sure to include the proper phases for all species within the reaction. + $ 4 F4 04 03- 2 Reset TW6D2PHI.pdf 0₂ P 15 % 5 3 4 3 213202 F5 Unofficial Transcri Question 14 of 40 4 -> Al O < 6 A 5 6 7 5 = 0+ F6 UAFS Registra Graduation Applica 6 MacBook Air ²+ & 7 07 NR N 0 3+ 7 8 9 0 09 口。 F7 (s) (1) (g) (aq) 8 4+ •x H₂O 8 CMy.UAFS - Stu Na DII FB Delete 9 F9 M Inbox ( ☆ F13.A core sample is saturated with an oil (po = 35°API), gas and water. The initial weight of the sample is 224.14 g. After the gas is displaced by water (pw = 1 g/cm'), the weight is increased to 225.90 g. The sample is the placed in a Soxhlet distillation apparatus, and 4.4 cm' water is extracted. After drying the core sample, the weight is now 209.75 g. The sample bulk volume, 95 cm3 is measured in a mercury pycnometer. Find the porosity, water saturation, oil saturation, gas saturation and lithology of the core sample.If one mixes 50cm³ of EtOH and 50cm³ of H2O at room temperature; will the total volume of the solution be 100.0 cm³? Justify answer with appropriate calculations and explanationsSEE MORE QUESTIONS