Question

In: Other

Physical Chemistry Colligative Properties of Non–Electrolytes 1. A mixture which contains 0.550 g of camphor and...

Physical Chemistry
Colligative Properties of Non–Electrolytes

1. A mixture which contains 0.550 g of camphor and 0.045 g of an organic solute freezes at 157.0 °C. The
solute contains 93.46 % of C and 6.54% of H by weight. What is the molecular formula of the compound?

2.An aqueous solution contains 20 g of glucose per liter. Assuming the solution to be ideal, calculate the
osmotic pressure at 25°C.

Solutions

Expert Solution


Related Solutions

Colligative properties are those that depend on the number of solute particles. Because electrolytes dissociate into...
Colligative properties are those that depend on the number of solute particles. Because electrolytes dissociate into ions, the concentration of particles in the solution is greater than the formula-unit concentration of the solution. For example, if 1 mol of Na2SO4 totally dissociates, 3 mol of ions are produced (2 mol of Na+ ions and 1 mol of SO42−ions). Thus, a colligative property such as osmotic pressure will be three times greater for a 1 MNa2SO4 solution than for a 1...
Camphor has a melting point of 178.4℃ and a Kf of 37.7℃/m. If 0.550 g of an unknown nonelectrolyte lowered the freezing point of 35.0 g of camphor by 2.00℃
  A) Camphor has a melting point of 178.4℃ and a Kf of 37.7℃/m. If 0.550 g of an unknown nonelectrolyte lowered the freezing point of 35.0 g of camphor by 2.00℃, what was the molar mass of the unknown? B) When 1.00 g of hemoglobin is dissolved in enough water to form 100mL of solution, the osmotic pressure at 20℃ is 3.62x10-3 atm. What is the molar mass of the protein, hemoglobin?
Which of the physical properties you can be use to distinguish metals from non metals
Which of the physical properties you can be use to distinguish metals from non metals
1. Explain/Discuss what a colligative property is. Provide at least 2 examples of colligative properties. 2....
1. Explain/Discuss what a colligative property is. Provide at least 2 examples of colligative properties. 2. Provide at least one real-life application of freezing point depression. 3. Define the concentration term molality (m). Under what conditions are Molarity and molality approximately the same? 4. Discuss/Explain why the temperature of a substance remains relatively constant during the freezing of liquid to solid.
1. What is Organic Chemistry? 2. Name two properties, physical or chemical that distinquish organic compounds...
1. What is Organic Chemistry? 2. Name two properties, physical or chemical that distinquish organic compounds from inorganic compounds? 3. What is the principal chemical bonding in organic compounds?
A mixture contains only and . A 4.51-g sample of the mixture is dissolved in water...
A mixture contains only and . A 4.51-g sample of the mixture is dissolved in water and an excess of is added, producing a precipitate of . The precipitate is filtered, dried, and weighed. The mass of the precipitate is 1.06 g. What is the mass percent of in the sample? %
Physical Chemistry 118.0 g acetylene (ethyne) exists as a liquid T=-84C which is the liquids boiling...
Physical Chemistry 118.0 g acetylene (ethyne) exists as a liquid T=-84C which is the liquids boiling point. The liquid boils. The resulting gas (ideal) is heated to 10C and is isothermally compressed from 200.0 L to 125.0Lwgst is the total deltaS for this process Heat of vaporization =16.7 kJ/mole
2. A mixture weighing 42.500 g contains 7.500 g NH4Cl, 19.650 g SiO2. With the remainder...
2. A mixture weighing 42.500 g contains 7.500 g NH4Cl, 19.650 g SiO2. With the remainder being NaCl. Find the percent by weight of each component. Show your calculations.
Which aqueous solution will have the lowest freezing point? (Hint: Relate to colligative properties.) 0.140 molal...
Which aqueous solution will have the lowest freezing point? (Hint: Relate to colligative properties.) 0.140 molal MgCl2 0.75 molal LiCl 0.150 molal KBr(aq) 0.100 molal NaBr(aq)
If a reduction reaction uses 0.50 g of camphor and has a (2.72x10^1) % yield of...
If a reduction reaction uses 0.50 g of camphor and has a (2.72x10^1) % yield of borneol and isoborneol, how many g's isoborneol does it produce? Refer to the previous question(s) for MW data. Consider borneol and isoborneol are formed in a 3/1 ratio.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT