Laboratory glassware

Materials and Procedure The materials that were used were the following: 4.268 grams of zinc sulfate heptahydrate, 2.586 grams of calcium acetate monohydrate, Analytical balance, 220 milliliters of deionized water, stir stick, two 100 milliliter glass beakers, one 250 milliliter glass beaker, filter paper, ring stand, glass funnel, and an Erlenmeyer flask. All of the materials listed above were obtained or taken into consideration before experimentation began. A piece of weight paper was…

In the volume lab, we found that the large graduated cylinder was the most accurate because it had less percent error when measuring the density of water over all of the other measuring tools.In this lab, we measured water from pipettes including volumetric and graduated pipettes, graduated cylinders, erlenmeyer flasks, and beakers to figure out the mass and density. These measurements were then used to calculate the percent error. We completed these measurements by measuring the volume of the…

Introduction: Leaf Disk float in water alone. When a solution consisting of a small amount of sodium bicarbonate is added to the water it causes the leaf disk to sink. As photosynthesis continues in the leaf disk it releases oxygen and causes the leaf disk to rise. While cellular respiration is occurring also the rate that the disk raise is an in implicit measurement of the net rate of photosynthesis. The independent variable in this lab is the solution and the light because it can be…

Methods There are many important factors to any experiment, including the materials. To continue, the quantity of materials for this experiment varies from a refrigerator to tweezers, but they all need to be included for the best results. First, the larger materials needed to complete the experiment are refrigerator, freezer, stove, one ice box, one scale which could be large or small, one blender, one cooking pot, one large jar or cup, and at least 400 milliliters of distilled water. Next, the…

Methods: Materials needed: Bottled water, control (tasteless) strips, PTC testing paper with ~ 0.003mg per strip, 1-inch strips of black licorice. 1. Provide each student with one large medicine cup filled of water. 2. Each student rinse his or her mouth of any residue prior to tasting the PTC paper with water to avoid misreading for data collection. 3. Give each student blindly a tasteless paper strip as a control. 4. Have each student again rinse his or her mouth of any residue then proceed…

A strip of magnesium (Mg) ribbon was cut with a scissor. Said piece had a length of 6 cm, and a weight of 0.071 g. The magnesium piece was rolled into a compact ribbon. After that, with copper turnings the mg piece was covered. Next, 700-mL of water was placed into a 1000-mL beaker. Then, the copper-wrapped magnesium was placed in the beaker. A 100-mL graduated cylinder was filled completely with water. After, said cylinder was covered with a small piece of paper towel over the entire rim, and…

The aim of this experiment is to determine through calculations the concentration of acetic acid content within a common white vinegar. Apparatus / Materials Plastic Tray Electronic scales Sodium hydroxide Volumetric flask and lid Glass funnel Distilled water Pipette Volumetric pipette/s (5mL, 20mL) Bulb Conical flask Retort Stand Burette Burette clamp White Tile Method Place the plastic tray on the electronic scales and press tare to set the wither to zero; Weigh out 0.7993g of Sodium…

Methods Column chromatography was set up using a 60 ml syringe clamped to a ring stand. The syringe was plugged using a small amount of cotton. An Erlenmeyer flask was placed underneath the column to collect any excess material. Eleven 20 ml vials were labeled numbers 1 through 11. Silica gel was measured to 42 ml using a graduated cylinder and then moved into a 150 ml beaker. A slurry was created by adding 50 ml of hexane to the beaker containing the silica gel. The slurry was stirred for…

To begin, we put 200mL of water with one drop of green food coloring into a pie tin. We then mounted the short candle into the clay in the center of the pie tin. After, we lit the candle, waited approximately five seconds and bottled the candle. Lastly, we waited for the flame to go out and measured how high the water rose in the bottle. This process was repeated for the medium and tall candle as well. Data Table: Height of Candle Height Water Rose in Bottle Short 4cm Medium 4cm Tall 4cm…

Umama abid Lab Partners: Olivia, Emily Ms. Olenick SBI4U 9/23/2017 Analysis The solution in the dialysis tube turned bluish black in color due to the transfer of iodine from the beaker to the bag which contains starch and glucose . The solution in the beaker turned brown after Benedict’s test ( table 1) . This indicates that the dialysis tubing was permeable to both glucose and iodine but not starch ( work helper, 2017) . Starch didn't pass because the solution in the beaker which…