CHEM 162 Experiment Lab 4: Fractional Crystallization Part I: Fractional Crystallization of KNO3 with (NH4)2Fe(SO4)2.6H2O Impurity | 2023 Complete

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 #1 Step 7: mass of dry filter paper + watch glass 30.8 g Step 10: mass of KNO3 crystals + filter paper + watch glass 32.95 g mass of KNO3 crystallized 2.140 g % KNO3 recovered (% of KNO3 in Step A.3.) 47.660 % 1 Step 11: mass of KNO3 crystals to be analyzed for purity in Part I.C 2.049 g B. Fract. Crystallization # 2 (Re-crystallization) Step 5: mass of dry filter paper + watch glass 30.48 g Step 7: mass of KNO3 crystals + filter paper + watch glass 30.685 g mass of KNO3 crystallized 0.205 g % KNO3 recovered (% of KNO3 in Step A.3.) 4.556 % 1 Step 8: mass of KNO3 crystals to be analyzed for purity in Part I.C