Chem 121 lab report - Study guides, Class notes & Summaries

CHEM 121 Lab Report 1- Equipment, Safety, and Mass Volume Measurement 2024

Experiment #: 5 Title: Bonding Type by Solubility, Distillation, and Spectroscopy Purpose: This lab is used to study the Infrared Spectra and physical properties of molecules to determine what kinds of intra-molecular bonds are present within the molecules and what kinds of inter-molecular bonds are present between the molecules. Procedure: Solubility Evaluation: Experiment 1: 1. Put a small amount of water in a test tube 2. Add two scoops of Potassium Chloride (solid) 3. Swirl in test...

Title: Equipment, Safety, and Mass/Volume Measurement Purpose: The purpose of this experiment is to learn how to be safe while working in the chemistry lab. Also, to learn about different equipment and how it is used properly in the chemistry lab setting. Lastly, to learn how to measure mass and volume using different equipment. Procedure: Analytical Balance Mass Measurement: 1) Five (5) analytical balances should be placed on a countertop and zeroed. 2) A cell phone is placed on analyti...

Experiment #: 9 Title: Inorganic Synthesis Purpose: In this lab, the synthesis of the inorganic compounds Alum, Calcium Carbonate, and Zinc Oxide will be carried out. Percent yields will be performed on all three of these experiments. Infrared Spectroscopy will be used to establish all structures. Procedure: Experiment 1: 1. Obtain 1-gram of scrap aluminum. 2. Place the aluminum in a beaker. 3. Add 50 ml of 20% Potassium Hydroxide to aluminum. 4. Heat the beaker in a hood (giving off H...

CHEM 121 Lab Report 7-Acid Base Titrations.

CHEM 121 Lab Report 7-Acid Base Titrations.

Title: Acid Base Titrations Purpose: In this lab, titration analyses will take place doing six different acid-base titrations. Titration is used to determine an unknown concentration of a substance. Procedure: Experiment 1: Weak acid, strong base Standardization titration was performed to determine the molarity of NaOH (Sodium Hydroxide) by titrating it against a weak acid, Potassium Hydrogen Phthalate. The acid is put in a beaker and phenolphthalein indicator and water is added. Titratio...

CHEM 121 Lab Report 10-Urinalysis.

Experiment #: 10 Title: Urinalysis Purpose: In this experiment we will conduct a chemical examination of a simulated urine sample. The test will include several chemicals that should be routinely present in the blood or urine, which include chloride, phosphate ions, calcium ions, ammonium ions, proteins, sugars, and ketones. Procedure: Test 1: Urinalysis - Test for Chloride (Cl-): This test measures the amount of chloride in urine and is used to evaluate and manage acid-base, fluid, an...

CHEM 121 Lab Report 10-Urinalysis.