9/21 properties of matter ppt
... been collected from the world’s oceans for thousands of years using this technique. ...
... been collected from the world’s oceans for thousands of years using this technique. ...
Solution FRQs Practice
... (i) a solution made from a ___________ (volatile/non-volatile) solute has a higher boiling point than the pure solvent because the solution has a ___________ (higher/lower) vapor pressure than the water (Raoult’s Law) . The temperature of the solution has be ________ (higher/lower) to produce enough ...
... (i) a solution made from a ___________ (volatile/non-volatile) solute has a higher boiling point than the pure solvent because the solution has a ___________ (higher/lower) vapor pressure than the water (Raoult’s Law) . The temperature of the solution has be ________ (higher/lower) to produce enough ...
review/theory of separation (mass transfer) unit-ops
... Purpose: Separate components based on volatility Method: Selective evaporation and condensation Types: Batch & continuous ...
... Purpose: Separate components based on volatility Method: Selective evaporation and condensation Types: Batch & continuous ...
Unit 2: Mixture and Matter Study Guide Ch 2 Vocab to know: Matter
... Chemical property Physical change Chemical change Intensive Homogenous Filtration ...
... Chemical property Physical change Chemical change Intensive Homogenous Filtration ...
Name ………………………………………………… Unit 7: States of
... (1) Propanone has a higher vapor pressure and stronger intermolecular forces than water. (2) Propanone has a higher vapor pressure and weaker intermolecular forces than water. (3) Propanone has a lower vapor pressure and stronger intermolecular forces than water. (4) Propanone has a lower vapor pres ...
... (1) Propanone has a higher vapor pressure and stronger intermolecular forces than water. (2) Propanone has a higher vapor pressure and weaker intermolecular forces than water. (3) Propanone has a lower vapor pressure and stronger intermolecular forces than water. (4) Propanone has a lower vapor pres ...
Summary of Gas Laws
... kinetic energy to break away into a gas phase This process is called evaporation Therefore, some part of a liquid substance is always present in form of vapor (gas phase) over the surface of the liquid Gas phase molecules can strike the liquid surface and be captured there This process is the revers ...
... kinetic energy to break away into a gas phase This process is called evaporation Therefore, some part of a liquid substance is always present in form of vapor (gas phase) over the surface of the liquid Gas phase molecules can strike the liquid surface and be captured there This process is the revers ...
Ch.1 Section 1.9 Notes - Effingham County Schools
... The separation occurs because the components of a mixture have different affinities for the two phases and thus move at different rates. A component with a high affinity for the mobile phase moves quickly. A component with a high affinity for the solid phase moves more slowly. • Paper Chromatography ...
... The separation occurs because the components of a mixture have different affinities for the two phases and thus move at different rates. A component with a high affinity for the mobile phase moves quickly. A component with a high affinity for the solid phase moves more slowly. • Paper Chromatography ...
Book chapter review solutions
... b. silicon, aluminum, and iron c. Oxygen makes up approximately 89% of the mass of water. The human body is approximately 80% water, and the oceans are mostly water. In addition, oxygen occurs in many of the minerals of the earth’s crust and is approximately 20% of the earth's atmosphere. d. Yes ...
... b. silicon, aluminum, and iron c. Oxygen makes up approximately 89% of the mass of water. The human body is approximately 80% water, and the oceans are mostly water. In addition, oxygen occurs in many of the minerals of the earth’s crust and is approximately 20% of the earth's atmosphere. d. Yes ...
CH225h - Oregon State chemistry
... (a) What is the ratio of rms speeds of Ar and He atoms in a gas sample at 290 K and 0.8 atm? The rms speeds are inversely proportional to the square root of mass, so the ratio of Ar speed / He speed is ≈ sqrt (4/40) ≈ 0.3 (b) If Ar, He, and Xe are mixed with equal partial pressures in a gas sample, ...
... (a) What is the ratio of rms speeds of Ar and He atoms in a gas sample at 290 K and 0.8 atm? The rms speeds are inversely proportional to the square root of mass, so the ratio of Ar speed / He speed is ≈ sqrt (4/40) ≈ 0.3 (b) If Ar, He, and Xe are mixed with equal partial pressures in a gas sample, ...
Mid Term Exam Topics 1-5 solution - OCW
... For water, the density of the solid is smaller than for the liquid so the slope is negative. But this is not the case for carbon dioxide which has a positive slope. c) From 218 to 1 atm, water exists as a liquid. At 1 atm, it transforms in solid and remains as a solid until pressure reaches a value ...
... For water, the density of the solid is smaller than for the liquid so the slope is negative. But this is not the case for carbon dioxide which has a positive slope. c) From 218 to 1 atm, water exists as a liquid. At 1 atm, it transforms in solid and remains as a solid until pressure reaches a value ...
Azeotrope
An azeotrope or a constant boiling mixture is a mixture of two or more liquids whose proportions cannot be altered by simple distillation. This happens because, when an azeotrope is boiled, the vapour has the same proportions of constituents as the unboiled mixture.Because their composition is unchanged by distillation, azeotropes are also called (especially in older texts) constant boiling mixtures. The word azeotrope is derived from the Greek words ζέειν (boil) and τρόπος (turning) combined with the prefix α- (no) to give the overall meaning, ""no change on boiling"". The term ""azeotrope"" was coined in 1911 by John Wade and Richard William Merriman.Many azeotropic mixtures of pairs of compounds are known, and many azeotropes of three or more compounds are also known. In such a case it is not possible to separate the components by fractional distillation. There are two types of azeotropes: minimum boiling azeotrope and maximum boiling azeotrope. A solution that shows greater positive deviation from Raoult's law forms a minimum boiling azeotrope at a specific composition. For example, an ethanol-water mixture (obtained by fermentation of sugars) on fractional distillation yields a solution containing approximately 95% by volume of ethanol. Once this composition has been achieved, the liquid and vapour have the same composition, and no further separation occurs. A solution that shows large negative deviation from Raoult's law forms a maximum boiling azeotrope at a specific composition. Nitric acid and water is an example of this class of azeotrope. This azeotrope has an approximate composition of 68% nitric acid and 32% water by mass, with a boiling point of 393.5 K.