Lauryl alcohol is a nonelectrolyte obtained from coconut oil and is used to make detergents. A solution of 9.00 g of lauryl alcohol in 0.100 kg of benzene freezes at 2.9 ∘C.
What is the approximate molar mass of lauryl alcohol?
Lauryl alcohol is a nonelectrolyte obtained from coconut oil and is used to make detergents. A...
1) list the following aqueous solution in order of decreasing freezing point: 0.040 m glycerin ( C3H8O3), 0.020 m KBr, 0.030 m phenol (C6H5OH).2) Lauryl alcohol is obtained from coconut oil and is used to make detergents. A solution of 5.00 g of lauryl alcohol in 0.100 kg of benzene freezes at 4.1°C. What isthe approximate molar mass of lauryl alcohol?
mistry Course Home <Assignment 13 Chap 13: Determining Molar Mass Problem 13.80 - Enhanced - with Feedback Lauryl alcohol is a nonelectrolyte obtained from coconut oil and is used to make detergents. A solution of 6.00 of Lauryl alcohol in 0.100 kg of benzene freezes at 3.8 °C Part A You may want to reference (Pages 542-552) Section 13.5 while completing this problem What is the approximate molar mass of lauryl alcohol? Express your answer using two significant figures. AEO...
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27. Lauric alcohol is obtained from coconut oil and used to make detergents. A 5,00g solution of that alcohol in 0.100kg of benzene is frozen at 4.1C. What is the molar mass of that substance? Tf 5.5C, KF 5.12C/m. 28. Adrenaline is the hormone responsible for releasing glucose in times of stress or emergency. A 0.64g adrenaline solution in 36.0g of CCl4 causes a 0.49C increase at the boiling point. What is the molar...
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A room-temperature solution is saturated in both KCI and CO_2. When the solution is heated to near boiling, which of the following is most likely to occur? Some KCI precipitates out of solution. Some CO_2 bubbles out of solution. Nothing is likely to happen. Some CO_2 bubbles out of solution and some KCI precipitates What is the molality a 4.0 M NaOH solution? The density of the solution is 1.04 R/mL. (Molecular weight of NaOH is 40 g/mol) 0.15...
A substance used to make detergents. A solution of 5.00 g of that substance in 100. g of benzene freezes at 4.100°C. What is the molar mass of this substance? (freezing point of benzene is 5.444°C, molal freezing point depression constant of benzene is 5.12 oC/m) (Consider the # of significant figures.)
A solution of 8.20 g of a nonvolatile nonelectrolyte in 144 g of the ethyl alcohol boils at 80.8oC. What is the molar mass of the solute?
8. 4.64 g of a nonelectrolyte is dissolved in 185.0 g naphthalene. The resulting solution freezes at 78.7°C. Calculate the molar mass. FP naphthalene = 80.2°C; K = 6.90 °C kg/mol Answer A solution is prepared by dissolving 30.7 g ethylene glycol (.M 62.0) in 500.0 mL HO. What is the vapor pressure at 100.0°C? deo = 1.00 g/mL Answer
A solution contains 0.180 g of an unknown nonelectrolyte solute in 50.0 g of water. The solution freezes at –0.040 0C (notice the negative sign). A) What is the molar mass of the unknown solute? B) What is the boiling temperature of the solution? Kf(water) = 1.86 K kg mol-1 ; Kb(water) = 0.51 K kg mol-1 . Assume that the solute only exists as a monomer in aqueous solution.
When 4.57 g of a nonelectrolyte solute is dissolved in water to make 835 mL of solution at 23 °C, the solution exerts an osmotic pressure of 869 torr. What is the molar concentration of the solution? concentration: How many moles of solute are in the solution? moles of solute: mol What is the molar mass of the solute? molar mass: g/mol
When 2.34 g of a nonelectrolyte solute is dissolved in water to make 405 mL of solution at 27 °C, the solution exerts an osmotic pressure of 905 torr. What is the molar concentration of the solution? concentration: How many moles of solute are in the solution? moles of solute: mol What is the molar mass of the solute? molar mass: g/mol