Crystallization - Study guides, Class notes & Summaries

Preterm rupture of Membranes (PROM) - rupture of membranes after 37th wk gestation but before onset of labor Preterm Premature Rupture of Membranes (PPROM) - rupture of membranes before the 37th wk gestation (worse outcomes) possible causes of PPROM - infection (UTI) amniocentesis placental abruption hydramnios maternal smoking multiple gestation assessment of rupture of membranes - time (must delivery baby w/in 24hrs) amount odor color (cloudy=infection, green=fetal distress) sign...

1 MODULE 8 PORTAGE 219 ORGANIC CHEMISTRY EXAM | QUESTIONS & ANSWERS (VERIFIED) | LATEST UPDATE | GRADED A+ large molecule made by repetitive linking of smaller units (monomers) Correct Answer: Polymer very large molecule composed of thousands of covalently bonded atoms (ex: polymer) Correct Answer: Macromolecule two ways polymers are made Correct Answer: 1. natural (in nature) 2. synthetic (in lab) natural polymers Correct Answer: rubber, carbs: starch & cellulose, proteins, nu...

BIOCHEMISTRY LAB 2 REPORT 2023/2024| PORTAGE LEARNING|WITH PROCEDURES, EXPLANATION AND FINAL RESULTS.HIGHLY RECOMMENDED Lab 2 Report: Recrystallization Chem 212

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

Title: Organic Synthesis Purpose: In this lab, three carbon based organic compounds were synthesized to determine their true purity. The experiments were done to learn about how to use these compounds’ melting points and infrared spectroscopy to determine their percent yield. Procedure: Experiment 1: Making Acetylsalicylic Acid (aspirin) 1. Obtain a flask. 2. Weigh 2 grams of salicylic acid. 3. Put the 2 grams of salicylic acid into the flask. 4. Put 5 mL of acetic anhydride into a gr...

Protein Crystallization and NMR for Structure Determination Exam Questions and Correct Answers Latest Update 2024 Crystallization - Answers Process of forming coherent scattering protein crystals Protein flexibility - Answers Removal of flexible parts to induce crystallization Diffraction - Answers Scattering of regular protein crystal to high resolution Resolution of Structures - Answers Ability to resolve protein structures at different levels Hydrogens - Answers Small atoms typically not...

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...

isomass recrystalization correct answers change in surface area to volume accretive recrystalization correct answers adjacent crystals combine migratory recystalization correct answers Caused by a fluctuation in storage temperature migratory crystallization steps correct answers food warms causes food on surface to dehydrate Increases vapor pressure on the surface Moisture migrates to lower pressure when temp drops water vapor joins existing ice crystals when a product reaches ...

BIOCHEMISTRY LAB 2 REPORT 2023/2024| PORTAGE LEARNING|WITH PROCEDURES, EXPLANATION AND FINAL RESULTS.HIGHLY RECOMMENDED Lab 2 Report: Recrystallization Chem 212

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