Study guides, Class notes & Summaries

Experiment # 3 Quantitative and Qualitative Analysis Purpose: Using tools to measure and identify substances. Procedure: A. Measuring quantity of a substance to identify metal carbonate. 1) Tare test tube in a beaker and measure out approximately 1.1809 gram of unknown metal carbonate into test tube. 2) Add sulfuric acid to the beaker and mix. Watch reaction for CO2 gas evaporation. 3) Measure weight of mixture and record the difference. 4) Use formula to calculate %CO2 in the sample=we...

Title: Density Determination Purpose: Familiarize methods to obtain densities of different objects. Explore accuracy and precision within two different methods of measuring density. Procedure: Measurement of densities of water at room temperature (21.4 degrees C). In order to calculate the density, the volume and mass of the items in each experiment were recorded. Note: accepted value of water density at room temperature is 0.997904 g/ml. Equipment: balance, pipette, beaker. A beaker was...

Experiment #: 1 Title: Equipment, Safety, and Measurement of Mass and Volume Purpose: Introduction to lab equipment and devices, safety equipment and procedures, and relative accuracy in mass, volume, and density comparing calculated and measured volumes. Procedure: Equipment Introduction  Glass containers: Beakers, flasks, graduated cylinders, pipettes, burettes  Burners- Bunsen and Fisher  Scoopula, spatula  Wire gauze for even heating  Ring stands, clamps, and burett...

CHEM 121 FINAL EXAM QUESTIONS AND ANSWERS 100% PASS kinetic molecular theory - Correct Answer ️️ -all matter is made of tiny particles that are constantly moving fundamental particle - Correct Answer ️️ -take a macroscopic object and divide it repeatedly. Eventually you have a particle, which, if further divided is no longer the original substance. This smallest piece of the substance is called... h2o molecule - Correct Answer ️️ -the fundamental particle of water is what? at...

Chemistry 121 Exam #1 Questions and Answers 100% Pass Hydroxide - Correct Answer ️️ -OH- Acetate - Correct Answer ️️ -C₂H₃O₂⁻ Nitrate - Correct Answer ️️ -NO₃⁻ nitrite - Correct Answer ️️ -NO₂⁻ Oxide - Correct Answer ️️ -O²⁻ Sulfide - Correct Answer ️️ -S²⁻ Sulfite - Correct Answer ️️ -SO₃²⁻ Sulfate - Correct Answer ️️ -SO₄²⁻ Carbonate - Correct Answer ️️ -CO₃²⁻ Chromate - Correct Answer ️️ -CrO₄²⁻ Dich...

Chemistry 121 Exam 1 Questions and Answers 100% Correct What are the three states of matter? - Correct Answer ️️ -solid, liquid and gas ___ is the study of properties and behavior of matter. - Correct Answer ️️ -chemistry ___ is the physical material of the universe. It is also anything the has mass and occupies space. - Correct Answer ️️ -matter __ is matter that is made up of one "thing" - Correct Answer ️️ -pure substance __ is a mixture that doesn't have the same co...

CHEM 121 FINAL EXAM QUESTIONS AND ANSWERS 100% PASS kinetic molecular theory - Correct Answer ️️ -all matter is made of tiny particles that are constantly moving fundamental particle - Correct Answer ️️ -take a macroscopic object and divide it repeatedly. Eventually you have a particle, which, if further divided is no longer the original substance. This smallest piece of the substance is called... h2o molecule - Correct Answer ️️ -the fundamental particle of water is what? at...

Chemistry 121 Exam #1 Questions and Answers 100% Pass Hydroxide - Correct Answer ️️ -OH- Acetate - Correct Answer ️️ -C₂H₃O₂⁻ Nitrate - Correct Answer ️️ -NO₃⁻ nitrite - Correct Answer ️️ -NO₂⁻ Oxide - Correct Answer ️️ -O²⁻ Sulfide - Correct Answer ️️ -S²⁻ Sulfite - Correct Answer ️️ -SO₃²⁻ Sulfate - Correct Answer ️️ -SO₄²⁻ Carbonate - Correct Answer ️️ -CO₃²⁻ Chromate - Correct Answer ️️ -CrO₄²⁻ Dich...