a. b. C. How are fractional distillation and steam distillation similar? How are fractional distillation and steam distillation different? The vapor pressure of benzaldehyde at 97 °C is about 60 mm Hg. Assume atmospheric pressure is 760 mm Hg. If you collected 20 g of distillate from your steam distillation, how much of it was benzaldehyde? Show calculation. your (MW)APA ga (MW)BPB gB at works as a =

a. b. C. How are fractional distillation and steam distillation similar? How are fractional distillation and steam distillation different? The vapor pressure of benzaldehyde at 97 °C is about 60 mm Hg. Assume atmospheric pressure is 760 mm Hg. If you collected 20 g of distillate from your steam distillation, how much of it was benzaldehyde? Show calculation. your (MW)APA ga (MW)BPB gB at works as a =

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

Calculate the mole fraction of KI in a solution made by dissolving 4.3 g of KI in 8.5 g of water. Multiple Choice 0.37 6.4 0.052
You weigh out 80g of NaOH pellets and dilute to 1 liter. MW = 40 g/mol. What is the normality of the solution?
A 15 mg/mL solution is diluted 5000 fold. Which of the following best describes the concentration of resulting solution? a. 3 micrograms / mL b. 0.3% w/v с. 15 g in 5 L d. 0.003% w/v e. 1g in 5000 mL
P. LI A certain liquid X has a normal freezing point of 5.40 °C and a freezing point depression constant K, =4.65 °C-kg-mol . Calculate the freezing point of a -1 solution made of 2.84g of ammonium chloride (NH Cl) dissolved in 100. g of X. Round your answer to 2 significant digits. OLX Check Save For Later Submit Assignment Epic Games Launcher AUZZ MICOTO Hill LLC. All Rights Resarved. Terms of Use Privacy Center Accessibility EPIC MacBook Pro F3 F4 OLS #3 3 $4 4. & 2. 5. 6. 6. TIT 1. R. A K lock H. B. alt alt ntrol opțion command option
M pressure 1.40 g of a polyethylene sample was dissolved in enough benzene to make 100. mL of solution, and the osmotic pressure was found to be 1.86 torr at 25°C. What is the molar mass of the polyethylene? 1.06 x 10⁹ g/mol SU 5720 g/mol Fresh osmosis Connected to DESKTOP-VKHKVG3 1₂0 Disconnect ✰ 1.19 x 104 g/mol 1.40 x 105 g/mol 2. Salt water is forced through 20-micron and 5-micron filters at a pressure of 800 pounds per square inch.
Use dimensional analysis
Suppose that you have a 1:1 mixture of compounds that is comprised of compound X and compound Y. You desire pure compound X and are planning a recrystallization to enhance the purity. Which solvent below is optimal for your recrystallization? Ethanol (boiling point = 78 °C) Solubility At 0 °C 100 °C Compound X 0.05 g/mL 0.20 g/mL Compound Y 0.02 g/mL 0.40 g/mL Water (boiling point = 100 °C) Solubility At 0 °C 100 °C Compound X 0.02 g/mL 0.05 g/mL Compound Y 0.01 g/mL 0.10 g/mL Methanol (boiling point = 65 °C) Solubility At 0 °C 65 °C Compound X 0.04 g/mL 0.10 g/mL Compound Y 0.02 g/mL 0.30 g/mL Acetone (boiling point = 56 °C) Solubility At 0 °C 56 °C Compound X 0.10 g/mL 0.50 g/mL Compound Y 0.20 g/mL 0.50 g/mL Ethyl Acetate (boiling point = 77 °C) Solubility At 0 °C 77 °C Compound X 0.10 g/mL 0.60 g/mL Compound Y 0.30 g/mL 0.60…
1a. If the mole fraction of cyclohexane in your mixture was 0.95, calculate the vapor pressure of your mixture if the vapor pressure of cyclohexane = 150.5 mm Hg. 1b. The vapor pressure of pure ethanol is 60.8 mm Hg. Would you expect it to have a higher boiling point or a lower boiling point that cyclohexane? Please answer part a and b and show work. Thanks
Show your work, include units, and report the correct number of significant figures for all calculations. 1. The molal freezing point depression constant (Kf) for p-dichlorobenzene is 7.10°C/m and its normal freezing point (f.p.) is 53.10°C. When 0.304 g of an unknown solute is dissolved in 3.78 g of p-dichlorobenzene, the f.p. is lowered to 49.60°C. Refer to the Introduction and Data Sheet to solve the following problems. a) The f.p. depression (ATf) is °C. b) Calculate the molality (m) of the solution. c) Calculate the number of moles of solute in the solution. d) Calculate the molar mass of the unknown solute.
Problem 17.21: Show how you could carry out the synthesis below beginning with benzaldehyde, and usmg eny other reagents necessary.
A student dissolved 20 mg of caffeine in 20 mL of water. The student carried out two extractions using 20 mL of dichloromethane in each one. Caffeine solubility in water: 2.17 g / 100 mL at 25 ° C Caffeine solubility in dichloromethane: 10.0 g / 100 mL at 25 ° C Present the calculations in detail below. A. Determine the distribution coefficient. b. Determine the amount of caffeine obtained in the first extraction. C. Determine the amount of caffeine obtained in the second extraction. 77 D. Determine the total amount of caffeine extracted during the entire process. and E.Determine the percent recovery.
17 g of unknown organic sample was dissolve in 564 mL of Dicloromethane (DCM). The boiling point of benzene was increased by 2.42°C. Determine the molecular weight of the unknown sample? Kb of DCM = 2.42°C/m Bb of benzene = 39.6 °C density of benzene = 1.33 g/mL at 25 °C Round your answer to the nearest whole number, no units required.