(a) Interpretation: The empirical formula for the compound needs to be determined when the mass of the compound is 0.270 g and it is dissolved in 50.0 g of camphor. The freezing point of the resultant solution is 177.9 °C. The freezing point camphor is 179.8°C and K f = 37.7 °C.kg/mol. Also, in the excess of oxygen gas, the combustion of the compound gives CO 2 that completely reacted with 20.0 mL of 2.00 M NaOH. Concept introduction: Colligative properties are the properties that depend on the number of particles present in the solution. Elevation in boiling point, depression in freezing point, lowering in vapor pressure and osmotic pressure are some common examples of colligative properties. Vapor pressure is the pressure at which is exerted by vapor on the liquid surface in a closed system when the system is in thermodynamic equilibrium.
(a) Interpretation: The empirical formula for the compound needs to be determined when the mass of the compound is 0.270 g and it is dissolved in 50.0 g of camphor. The freezing point of the resultant solution is 177.9 °C. The freezing point camphor is 179.8°C and K f = 37.7 °C.kg/mol. Also, in the excess of oxygen gas, the combustion of the compound gives CO 2 that completely reacted with 20.0 mL of 2.00 M NaOH. Concept introduction: Colligative properties are the properties that depend on the number of particles present in the solution. Elevation in boiling point, depression in freezing point, lowering in vapor pressure and osmotic pressure are some common examples of colligative properties. Vapor pressure is the pressure at which is exerted by vapor on the liquid surface in a closed system when the system is in thermodynamic equilibrium.
Solution Summary: The author explains how the empirical formula for the compound needs to be determined when the mass is 0.270 g and the freezing point is 177.9 °C.
Definition Definition Transformation of a chemical species into another chemical species. A chemical reaction consists of breaking existing bonds and forming new ones by changing the position of electrons. These reactions are best explained using a chemical equation.
Chapter 13, Problem 13.150MP
Interpretation Introduction
(a)
Interpretation:
The empirical formula for the compound needs to be determined when the mass of the compound is 0.270 g and it is dissolved in 50.0 g of camphor. The freezing point of the resultant solution is 177.9 °C. The freezing point camphor is 179.8°C and Kf = 37.7 °C.kg/mol. Also, in the excess of oxygen gas, the combustion of the compound gives CO2 that completely reacted with 20.0 mL of 2.00 M NaOH.
Concept introduction:
Colligative properties are the properties that depend on the number of particles present in the solution. Elevation in boiling point, depression in freezing point, lowering in vapor pressure and osmotic pressure are some common examples of colligative properties. Vapor pressure is the pressure at which is exerted by vapor on the liquid surface in a closed system when the system is in thermodynamic equilibrium.
Interpretation Introduction
(b)
Interpretation:
The molar mass of the compound needs to be determined.
Concept introduction:
Colligative properties are the properties which depend on the number of particles present in the solution. Elevation in boiling point, depression in freezing point, lowering in vapor pressure and osmotic pressure are some common examples of colligative properties. Vapor pressure is the pressure at which is exerted by vapor on the liquid surface in a closed system when the system is in thermodynamic equilibrium.
Interpretation Introduction
(c)
Interpretation:
The molecular formula for the compound needs to be determined.
Concept introduction:
From the mass of the empirical formula and molar mass, the molecular formula can be calculated as follows:
6. Draw the molecular orbital diagram shown to determine which of the following is paramagnetic.
B22+
B22+, B2, C22, B22 and N22+
Molecular Orbital Diagram
B2
C22-
B22-
N22+
Which molecule is paramagnetic?
3. Put the following species in order of increasing bond length by using molecular orbital diagrams and
calculating their bond orders: F2, F2, F2+
Molecular Orbital Diagram
F2
F2
F2+
Bond Order
Shortest bond:
Longest bond
3. Put the following species in order of increasing bond length by using molecular orbital diagrams and
calculating their bond orders: F2, F2, F2+
Molecular Orbital Diagram
F2
F2
F2+
Bond Order
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell