Chem 162 experiment 4 - Study guides, Class notes & Summaries

CHEM 162 EXPERIMENT 4: I. Fractional Crystallization Of KNO3 With 2Fe2.6H2O Impurity II. The Solubility Curve Of KNO3

CHEM 162 EXPERIMENT 4: I. Fractional Crystallization Of KNO3 With 2Fe2.6H2O Impurity II. The Solubility Curve Of KNO3. Goals of this lab: • Demonstrate the purification of a solid sample using the process of fractional crystallization • Construct a solubility curve for potassium nitrate • Apply the mechanics of dimensional analysis and an understanding of solubility of solids to calculatecomposition by mass, % impurity, % recovery, solubility product constant, enthalpy of solution forma...

CHEM 162 EXPERIMENT 4: I. Fractional Crystallization Of KNO3 With 2Fe2.6H2O Impurity II. The Solubility Curve Of KNO3. Demonstrate the purification of a solid sample using the process of fractional crystallization • Construct a solubility curve for potassium nitrate • Apply the mechanics of dimensional analysis and an understanding of solubility of solids to calculatecomposition by mass, % impurity, % recovery, solubility product constant, enthalpy of solution formand entropy of solution f...

CHEM 162 EXPERIMENT 4: I. Fractional Crystallization Of KNO3 With 2Fe2.6H2O Impurity II. The Solubility Curve Of KNO3. Starting Components (Fract. Crystallization #0) data entry 3 Step 3: Mixture before first crystallization 3 mass KNO3 4.501 g mass (NH4 )2Fe(SO4 )2 . 6H2O 0.501 g Total mass of the sample mixture 5.002 g % Impurity (i.e., % Fe compound in the mixture)* 10.02 % *(This is your % impurity for Fract. Crystallization # 0) Fract. Crystallization #1 Step 7: mass of dry filt...

CHEM 162 Experiment #4 Part I. Fractional Crystallization of KNO3 with (NH4)2Fe(SO4)2·6H2O Impurity Part II. Determining the Solubilty Curve of KNO3

CHEM 162 Experiment Lab 4: Fractional Crystallization Part I: Fractional Crystallization of KNO3 with (NH4)2Fe(SO4)2.6H2O Impurity | 2023 Complete. Starting Components (Fract. Crystallization #0) data entry 3 Step 3: Mixture before first crystallization 3 mass KNO3 4.501 g mass (NH4 )2Fe(SO4 )2 . 6H2O 0.501 g Total mass of the sample mixture 5.002 g % Impurity (i.e., % Fe compound in the mixture)* 10.02 % *(This is your % impurity for Fract. Crystallization # 0) Fract. Crystallization...

Chem 162 Experiment #3: Intermolecular Forces Part II: Vapor Pressure and Enthalpy of Vaporization PURPOSE (4 pts) The purpose is to measure the enthalpies of vaporazation of pentane, diethyl ether, butanone, and 2-butanol. For each of these molecules, a portion of the enthalpy of vaporization is due to dispersion forces (all molecules have dispersion forces) and the other to a polar component. In the boxes provided below, draw the structural formula for each molecule (should be drawn by h...

CHEM 162 Experiment Lab 4: Fractional Crystallization Part I: Fractional Crystallization of KNO3 with (NH4)2Fe(SO4)2.6H2O Impurity | 2023 Complete. Starting Components (Fract. Crystallization #0) data entry 3 Step 3: Mixture before first crystallization 3 mass KNO3 4.501 g mass (NH4 )2Fe(SO4 )2 . 6H2O 0.501 g Total mass of the sample mixture 5.002 g % Impurity (i.e., % Fe compound in the mixture)* 10.02 % *(This is your % impurity for Fract. Crystallization # 0) Fract. Crystallization...