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Observation for a lab report on density
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Recommended: Observation for a lab report on density
Out of the many experiments being conducted, I have the pleasure of introducing a layered density column to the class. Density is defined as mass divided by volume or the amount of stuff in a certain amount of space. Composed of many different household products (vegetable oil, rubbing alcohol, and even water), density columns present different layers through the masses of each liquid. These columns can contain as many products the experimenter desires. The liquids chosen that have a higher density tend to weigh more, unlike those that weigh less and float to the top if poured into the column. Along with the liquids chosen objects can be placed into the column, and then we would be able to see how each layer has an effect on the objects.
For my lab experiment, I will be using 7 products throughout my demonstration. I could use as many products that I want, however 7 is a common amount to start with. Every product will be measured according to the amount that the cup can hold. To conduct my experiment, I will be pouring the products into 2 ounce cups and will construct the column th...
2. A test tube was then filled with 35ml of yeast and placed in the
Random errors reflect a low precision through high scatter. Increasing the sample size of the number of tablets used will produce more data that can be graphed, and from which a more reliable and representative line of best fit could be produced, ultimately minimising random errors. Additionally, increasing the number of trials for each number of reacting Alka Seltzer tablets would minimise random errors by helping to produce a more precise average change in mass. Modifying the method can also help minimise the effect of random errors, by obtaining more reliable results. For example, instead of cutting the Alka Seltzer tablets in half, whole Alka Seltzer tablets could have been used, and the amount of reacting HCl could have been increased to account for the increase in the number of tablets used for each ample. In doing this, the mass of the reacting Alka Seltzer tablets will be more consistent for each trial, and the state of subdivision of the tablets could be truly kept
I am doing this experiment to find the density of aluminum foil to see if it floats or sinks when placed in water. I hope to find how the density of aluminum foil changes when weight is added to the foil. I hypothesize that the boat will hold 20 pennies before sinking.
Each subsequent trial will use one gram more. 2.Put baking soda into reaction vessel. 3.Measure 40 mL vinegar. 4.Completely fill 1000 mL graduated cylinder with water.
3.) Divide your 30g of white substance into the 4 test tubes evenly. You should put 7.5g into each test tube along with the water.
Put a label on each test tube. With a pencil, number each test tube from one to twelve.
how much base was needed in (ml). Once we titrated all the bottles we then
The primary goal of this experiment was to determine which types of glassware are the most accurate and precise in measuring substances. Another goal of this experiment was to help familiarize ourselves with the different types of glassware, and how we should handle the laboratory equipment. The accuracy and precision of a particular type of glassware is important because it allows for accurate measurements when performing different experiments. It also allows us to differentiate between glassware that is better for containing substances versus glassware that can deliver substances more accurately. In order to measure the accuracy and precision of the different types of glassware, we first chose seven different types of glassware. The general
to be done. This was to find out what amount of each liquid would be
At the end of my display, we have watched different molecules and properties of densities in action. The raining blood experiment, although sounding a bit intimidating, is very simple and entertaining to witness, if the steps are done correctly. My suggestion is for you to try everything that may seem intimidating or maybe even ridiculous; you may learn something new and
To make it a fair test I will test each concentration three times and use the average. My tests will be accurate as I will be using a very accurate scale and precise syringes. To make my experiment accurate I will be using distilled water to make my sucrose solutions so there are no impurities that may affect my experiment and I will also measure my results to two decimal places. To make my experiment safe I will use goggles.
I am going to use a range of concentrations to enable me to get a good
Weigh out two 0.100 g. samples of the product and put each into a test
In my experiment, I will use an overall volume of 50 cm³ of 2moles of