The freezing point and the boiling point of the given solutions are should be calculated. Concept introduction: Elevation of boiling point: The boiling point of the solution is increases when the solute is dissolved in the solvent are called Elevation of boiling point. It is one of the colligative Properties thus, ΔT = K b m solute ...... ( 1 ) ΔT is boiling-point elevation K b is molal boiling-point elevation constant m is molality of the solute Depression in freezing point: The freezing point the solution is decreases when the solute is dissolved in the solvent is called depression in freezing point. it is one of the colligative Properties thus, ΔT = K f m solute ...... ( 2 ) ΔT is boiling-point elevation K f is molal freezing-point depression constant m is molality of the solute
The freezing point and the boiling point of the given solutions are should be calculated. Concept introduction: Elevation of boiling point: The boiling point of the solution is increases when the solute is dissolved in the solvent are called Elevation of boiling point. It is one of the colligative Properties thus, ΔT = K b m solute ...... ( 1 ) ΔT is boiling-point elevation K b is molal boiling-point elevation constant m is molality of the solute Depression in freezing point: The freezing point the solution is decreases when the solute is dissolved in the solvent is called depression in freezing point. it is one of the colligative Properties thus, ΔT = K f m solute ...... ( 2 ) ΔT is boiling-point elevation K f is molal freezing-point depression constant m is molality of the solute
Solution Summary: The author explains that the freezing point and the boiling point of the given antifreeze solution should be calculated.
Interpretation: The freezing point and the boiling point of the given solutions are should be calculated.
Concept introduction:
Elevation of boiling point:
The boiling point of the solution is increases when the solute is dissolved in the solvent are called Elevation of boiling point. It is one of the colligative Properties thus,
ΔT=Kbmsolute......(1)ΔT is boiling-point elevationKbismolal boiling-point elevation constantmis molality of the solute
Depression in freezing point:
The freezing point the solution is decreases when the solute is dissolved in the solvent is called depression in freezing point. it is one of the colligative Properties thus,
ΔT=Kfmsolute......(2)ΔT is boiling-point elevationKfismolal freezing-point depression constantmis molality of the solute
Photochemical smog is formed in part by the action of light on nitrogen dioxide. The wavelength of radiation absorbed by NO2 in this reaction is 197 nm.(a) Draw the Lewis structure of NO2 and sketch its π molecular orbitals.(b) When 1.56 mJ of energy is absorbed by 3.0 L of air at 20 °C and 0.91 atm, all the NO2 molecules in this sample dissociate by the reaction shown. Assume that each absorbed photon leads to the dissociation (into NO and O) of one NO2 molecule. What is the proportion, in parts per million, of NO2 molecules in this sample? Assume that the sample behaves ideally.
An expression for the root mean square velocity, vrms, of a gas was derived. Using Maxwell’s velocity distribution, one can also calculate the mean velocity and the most probable velocity (mp) of a collection of molecules. The equations used for these two quantities are vmean=(8RT/πM)1/2 and vmp=(2RT/M)1/2 These values have a fixed relationship to each other.(a) Arrange these three quantities in order of increasing magnitude.(b) Show that the relative magnitudes are independent of the molar mass of the gas.(c) Use the smallest velocity as a reference for establishing the order of magnitude and determine the relationship between the larger and smaller values.