temperature will increase/ decrease. An easier way to interpret this is that at a constant pressure‚ volume and temperature are directly proportional. Materials Lab quest Vernier gas pressure sensor Temperature probe 20 mL gas syringe 125 mL Erlenmeyer flask 3 600mL beakers hot plate Dry ice rubber stopper with 2-way valve Procedure and observations (Part 1) The first thing we did in this experiment was measure pressure and volume. To do this we used the lab quest and syringe. You attach the syringe
Free Gas Pressure Temperature
adapter‚ 3-way adapter (distillation adapter)‚ triple neck round bottom flask‚ west condenser‚ vacuum adapter‚ Erlenmeyer flask‚ 500ml & 50 ml beaker‚ Bunsen burner‚ rubber tubing‚ clamp holder & extensions‚ and graduated cylinder. For both parts of lab 4‚ the heating source was the hot plate‚ the substances were heated in a 100ml Erlenmeyer flask‚ filtered using filter paper and a funnel with a neck‚ beakers‚ vacuum flask for additional filtration‚ and an electronic scale for weighing the
Premium Distillation Solvent Ethanol
1 DETERMINING THE CONCENTRATION OF CITRIC ACID IN A SOFT DRINK USING ACID/BASE TITRATION Copyright: Department of Chemistry‚ University of Idaho‚ Moscow‚ ID 83844-2343; 2007. INTRODUCTION The acid content of many foods and beverages contributes significantly to their taste. Soft drinks often contain varying quantities of several acids‚ which give sodas their tart flavor. In cola products‚ these acids are predominantly carbonic acid (from the carbonated water) and phosphoric acid. In sodas
Premium Acid Sodium hydroxide
! Isolation of the Components of BC Powder Introduction Aspirin‚ Caffeine and Salicylamide were extracted from an over-the-counter pain reliever (BC Powder). These components were separated by manipulating their solubilities by adjusting the acidity and basicity of the solution. By doing this‚ the three components were forced into conjugate acid (or base) forms‚ causing selective solubility in either an aqueous or organic solvent. These layers were then separated by use of a separation funnel
Premium Solvent Sodium chloride Acetic acid
to add water to our crystals so that the acetylsalicylic acid can be dissociated from impurities. Using a technique called vacuum filtration‚ crystals will be held on a filtration paper while the liquid portion of reagents will drained into an Erlenmeyer flask. To purify our crystals even more‚ we will have to perform a procedure called re-crystallization‚ using ethyl acetate as our solvent instead of water in order to prevent decomposition of our products‚ and then once again we will use vacuum
Premium Aspirin Acetic acid Acetic anhydride
precipitate out a solution. Using vacuum filtration the crude product is collected and with a sample from the crude solid we can determine a melting point. With the remaining solid we undergo recrystallization by adding deionized water into an Erlenmeyer flask and repeat the heating process. Once the crude solid dissolves the mixture is cooled again to room temperature and then in an ice-water bath. Again with vacuum filtration the solid can be extracted and another melting point can be determined
Free Melting point Chemistry Solid
of bleach solution into a clean 250-mL volumetric flask we also added distilled water to the mark of the volumetric flask.
Premium Chemistry Sodium hydroxide Base
handling. Remove contaminated clothing and wash before reuse. Use only in a well-ventilated area. Minimize dust generation and accumulation. Avoid contact with eyes‚ skin‚ and clothing. Avoid ingestion and inhalation. Procedure: 1. Use a 125mL Erlenmeyer Flask fitted with one hole cork. Through the cork insert a reflux condenser. Place on top of a heating mantle while being supported by a retort stand and ring clamp‚ clamped to the reflux condenser. 2. Place 10mL of methanol‚ and 3g of salicylic acid
Premium Ester Carboxylic acid Ethanol
Introduction When iron is mixed to Copper (Ⅱ) Chloride; the product will be copper and iron chloride. However‚ in this experiment‚ we do not have the information of the oxidation number for iron nails. There are 2 different oxidation numbers for iron; that are 2 or 3. We will need to check each of the equations to find out the moles of each element in the equation. Then we can compare the ratio between the mole and the mass of iron and copper; that will be measured during the experiment. Finally
Free Stoichiometry Iron Yield
RNH2 + HCl(aq) ( RNH3+Cl-(aq) Procedure: It was determined prior to carrying out the experiment that the unknown compound that was used contained a basic compound‚ not the acidic compound. One gram of the unknown was placed into an Erlenmeyer flask with approximately 30mL of MBTE. The solution was swirled and stirred until all of the unknown solid was dissolved‚ it was then decanted and placed into a separatory funnel. The unknown mixture contained a basic compound so 15mL of HCl was added
Free Chemistry Solvent Laboratory glassware