Laboratory Techniques & Measurements: Cherry Limeade Essay Example

method produces about the same result. The Archimedes’ principle method uses buoyancy and states that a body immersed in water will be buoyed up by a force equal to the weight of the fluid that it displaces. Water displacement is similar by dropping the item to the bottom and calculating the amount of water displaced.

What would happen if you dropped the object into the beaker while using the Archimedes’ Principle method? Essentially, it would become the water displacement method.  How did the magnet’s density measurement using the Archimedes’ Principle compare to the density measurement using the calculated volume? Which method might be more accurate? Why? The density measurement using the Archimedes’ Principle and the density using calculated volume differed more than 1 g/mL. I consider the calculated volume to be more accurate than the Archimedes’ Principle. This is new to me and I could easily have made a mistake in reading the cylinder.

There also could be trapped air bubbles on the magnet which would make the results suspect. H. You are given a small piece of gold to analyze. Using the Archimedes Principle you find that the volume is 0. 40 cm3 and the mass is 6. 0 g.

What conclusions can you reach from your simple density analysis? According to the information provided using the Archimedes Principle, the density of this piece of gold is 15 cm3.

How would you prepare 10 mL of a 0. 25 M HCl solution if 1 M HCl was available? How much 1 M HCl is needed? How much distilled water is used? First, the 1 M HCI would need to be diluted. Use 3 (. 75) parts water and

1 part (. 25) 1 M HCI. J. What is the final concentration of the colored drink in the volumetric flask? You would need 2. 5 mL M HCI and 7. 5 mL distilled water to prepare 10 mL of a 0. 25 M HCI solution. K. How does the color in the volumetric flask compare to the original color before diluting? The color in the volumetric flask is very pale and diluted in comparison to the original color. To help you get a feel for metric measurements, you need to know the relative magnitude of a few basic measurements.

For example: 1 mm = thickness of a dime; 2. 5 grams = weight of a penny; 20°C = normal room temperature. L. Determine the following: a. Determine your mass or the mass of a friend, pet, or another large object in kilograms (kg)? Don’t forget to identify the mass you are measuring. Me= 79. 4 kg b. What weighs approximately 1 g? Large Paper clip c. What is approximately 1 cm long, wide or thick? The head of the bolt used in this experiment is 1 cm wide d. What weighs about 100 g? A pair of kitchen shears e. What weighs about 1000 g? 1 36oz. Bottle of ketchup.