The reason behind the statement that the colligative properties of solutions of ionic compounds are usually more pronounced than those of solutions of molecular compounds of the same molalities is to be explained. Concept Introduction: There are certain properties of a solution that are based on the solute molecule concentration or ion concentration in the solution rather than on the chemical identities of the solutes. They are called colligative properties of the solution. Molality or molar concentration of a solution is defined as the solute concentration (number of moles) per kilogram of the solvent. When metals react with non-metals ionic compounds are formed. Ionic compound is a compound consisting of ions having electrostatic interaction between them which is termed as ionic bonding.
The reason behind the statement that the colligative properties of solutions of ionic compounds are usually more pronounced than those of solutions of molecular compounds of the same molalities is to be explained. Concept Introduction: There are certain properties of a solution that are based on the solute molecule concentration or ion concentration in the solution rather than on the chemical identities of the solutes. They are called colligative properties of the solution. Molality or molar concentration of a solution is defined as the solute concentration (number of moles) per kilogram of the solvent. When metals react with non-metals ionic compounds are formed. Ionic compound is a compound consisting of ions having electrostatic interaction between them which is termed as ionic bonding.
Solution Summary: The author explains that colligative properties of ionic compounds are more pronounced than those of molecular compounds of the same molalities.
The reason behind the statement that the colligative properties of solutions of ionic compounds are usually more pronounced than those of solutions of molecular compounds of the same molalities is to be explained.
Concept Introduction:
There are certain properties of a solution that are based on the solute molecule concentration or ion concentration in the solution rather than on the chemical identities of the solutes. They are called colligative properties of the solution.
Molality or molar concentration of a solution is defined as the solute concentration (number of moles) per kilogram of the solvent.
When metals react with non-metals ionic compounds are formed.
Ionic compound is a compound consisting of ions having electrostatic interaction between them which is termed as ionic bonding.
Lab Data
The distance entered is out of the expected range.
Check your calculations and conversion factors.
Verify your distance. Will the gas cloud be closer to the cotton ball with HCI or NH3?
Did you report your data to the correct number of significant figures?
- X
Experimental Set-up
HCI-NH3
NH3-HCI
Longer Tube
Time elapsed (min)
5 (exact)
5 (exact)
Distance between cotton balls (cm)
24.30
24.40
Distance to cloud (cm)
9.70
14.16
Distance traveled by HCI (cm)
9.70
9.80
Distance traveled by NH3 (cm)
14.60
14.50
Diffusion rate of HCI (cm/hr)
116
118
Diffusion rate of NH3 (cm/hr)
175.2
175.2
How to measure distance and calculate rate
For the titration of a divalent metal ion (M2+) with EDTA, the stoichiometry of the reaction is typically:
1:1 (one mole of EDTA per mole of metal ion)
2:1 (two moles of EDTA per mole of metal ion)
1:2 (one mole of EDTA per two moles of metal ion)
None of the above