Separating A Mixture Of Compounds Lab Report
Separating a Mixture of Compounds
Exp. No. 2
April 8, 2014
I. Purpose
The purpose of this experiment is to separate three components; SiO₂, NaCl, and NH₄Cl through Sublimation, filtration and evaporation to determine the mass and mass percentage of each component.
II. Experimental Method
Equipment Chemicals
Evaporating Dish Powdered Mixture A
2 50ml beaker Water
Balance
Thermometer
Bunsen burner
III. Raw Data and Calculations
Mass of empty evaporating dish 76.00g Mass of evaporating dish + powder mixture sample 86.00g Mass of the sample 10.00g
Sublimation of Ammonium Chloride (NH Cl): Mass of evaporating dish and the remaining sample after sublimation 84.778g Mass of NH₄Cl in the sample 1.222g
Filtration of Sand (SiO): …show more content…
Mass of empty beaker 85.00g Mass of beaker with the SiO₂ after decanting 91.158g Mass of the SiO₂ 6.158g
Sodium Chloride (NaCl) Content and Evaporation: Mass of NaCl of other components 2.62g Measured mass of NaCl after boiling away water 87.62g
Mass of NH₄Cl = mass of evaporating dish and remaining contents after sublimation – mass of evaporating dish plus the powder mixture sample 1.222g = 84.778g – 86.00g
Mass of SiO₂ = mass of beaker with SiO₂ after decanting – mass of empty beaker 6.158g = 91.158g – 85.00g Mass of NaCl = NH Cl + SiO – initial sample mass 2.62g = 1.222g + 6.158g = 7.38g – 10g
% difference = [(measured mass) – (mass by subtraction)] / (mass by subtraction) * 100% 3.24% = 87.62g -2.62g = 85.00g/2.62g * 100%
Mass Percentage = mass component / 10g sample * 100 NH₄Cl 1.222g / 10g * 100 = 12.22% SiO₂ 6.158g / 10g * 100 =
61.58% NaCl 2.62g / 10g * 100 = 26.2%
IV. Results
Component Mass Percentage
% NH₄Cl 12.22%
% SiO₂ 61.58%
% NaCl 26.2%
V. Conclusion
Based on the experimental results, the preferred method of separation is Sublimation of Ammonium Chloride (NH Cl) which calculated as the lowest mass percentage. Also proves that not all of the components can be separated through sublimation.
Exp. No. 2
April 8, 2014
I. Purpose
The purpose of this experiment is to separate three components; SiO₂, NaCl, and NH₄Cl through Sublimation, filtration and evaporation to determine the mass and mass percentage of each component.
II. Experimental Method
Equipment Chemicals
Evaporating Dish Powdered Mixture A
2 50ml beaker Water
Balance
Thermometer
Bunsen burner
III. Raw Data and Calculations
Mass of empty evaporating dish 76.00g Mass of evaporating dish + powder mixture sample 86.00g Mass of the sample 10.00g
Sublimation of Ammonium Chloride (NH Cl): Mass of evaporating dish and the remaining sample after sublimation 84.778g Mass of NH₄Cl in the sample 1.222g
Filtration of Sand (SiO): …show more content…
Mass of empty beaker 85.00g Mass of beaker with the SiO₂ after decanting 91.158g Mass of the SiO₂ 6.158g
Sodium Chloride (NaCl) Content and Evaporation: Mass of NaCl of other components 2.62g Measured mass of NaCl after boiling away water 87.62g
Mass of NH₄Cl = mass of evaporating dish and remaining contents after sublimation – mass of evaporating dish plus the powder mixture sample 1.222g = 84.778g – 86.00g
Mass of SiO₂ = mass of beaker with SiO₂ after decanting – mass of empty beaker 6.158g = 91.158g – 85.00g Mass of NaCl = NH Cl + SiO – initial sample mass 2.62g = 1.222g + 6.158g = 7.38g – 10g
% difference = [(measured mass) – (mass by subtraction)] / (mass by subtraction) * 100% 3.24% = 87.62g -2.62g = 85.00g/2.62g * 100%
Mass Percentage = mass component / 10g sample * 100 NH₄Cl 1.222g / 10g * 100 = 12.22% SiO₂ 6.158g / 10g * 100 =
61.58% NaCl 2.62g / 10g * 100 = 26.2%
IV. Results
Component Mass Percentage
% NH₄Cl 12.22%
% SiO₂ 61.58%
% NaCl 26.2%
V. Conclusion
Based on the experimental results, the preferred method of separation is Sublimation of Ammonium Chloride (NH Cl) which calculated as the lowest mass percentage. Also proves that not all of the components can be separated through sublimation.