Utilizing the information from the table above the mean, median and standard deviation will be calculated. The mean equals the average of the sample by adding all the values of the samples and then dividing by the total number of items. The mean for the samples collected is 14.87 ounces which rounded up 14.9 ounces.…
Then the mass of a weighing dish was recorded along with 0.35 g of KHP. The mass of an Erlenmeyer flask was then weighed as well. After both flask and substance were weighed, the combined mass of the flask and substance was recorded…
Experiment Question: Oreo Cookie Challenge Do Double-Stuff Oreos actually have double the stuffing or regular oreos? Hypothesis (including reasoning): If we find the mass of 3 regular oreos and 3 double stuffed oreos and average them out, then the double stuffed oreos will have double the stuffing. The company has advertised the double stuffed oreo to be double the stuffed, therefore it must be true.…
The first shell lost 0.37g of mass, the second shell lost 0.84g of mass, and last the third shell lost a total of 0.96g of mass. I got this measurement by subtracting the first weight to the last weight and you get the final loss of…
Caffeine Impact on Goldfish Metabolism Introduction Metabolism is a process that enable organisms to maintain their life. Metabolism can be measured in numerous parameters. Within this experiment in order to measure the metabolism rate by determined the level of dissolved oxygen. Goldfish is an example of poikilotherm that are organisms that are influenced by the environment surrounding them. Thus, the manipulation of surrounding can influence the metabolism rate due them being ectotherms.…
Place the filter paper in the oven and allow to dry until the solid crumbles to the touch, and weigh the precipitated compound. With the mass of the precipitated compound and the formula, we can calculate the moles and the mass of the compound present. We can then…
Ashley-Ann Burnett October 4, 2015 Lab #3: Acids, Bases & pH SLS43-14/7-8 Pre-Lab Questions: 1) An isotope is an atom with a different atomic weight due to changes in the number of neutrons in the nucleus. Some examples of isotopes are Protium, Deuterium, and Tritium, which are all Hydrogen atoms. Instead of the zero neutrons Hydrogen has in its Protium form, Deuterium and Tritium have two and three neutrons respectively. This change in neutron number and therefore atomic weight classify these atoms as isotopes of the element Hydrogen.…
It is clear that isotopes are atoms that belong to the same element with the same number of protons but differ in numbers of neutrons. As a result from our experiment it is evident that each group of isotopes have different masses… for example; Bn a (white) have a group mass of 21.97g, Bn b (white eyed) have a group mass of 20.12g and Bn c (white with brown spots) have a group mass of 3.10g. However it is clear our experiment was not completely accurate due to sources of error. One source of error includes that each beanium isotope of the same group did not weigh the same, this error could be minimized by insuring each biennium weighs the same by weighing each beanium individually beforehand. Another source of error includes that the scale only weighed up to two decimal places, this error can simply be minimized by the use of a more advanced scale that is set for smaller masses.…
_________ Its atomic mass? ________ 4. Consider this entry in the periodic table for carbon. What is the atomic mass?…
A Hydrate’s Empirical Formula Aaron Meehan Ethan 11/06/17 Kotiba 09J I have read and agree to the terms of the Academic Honesty Statement. _ Aaron Meehan____________11/06/2017 _____________________ Student Signature…
D) Nothing, the burned wood simply has a mass of 1.2 grams. E) none of the above 25) A fictional element has two naturally occurring isotopes with the natural abundances shown here: 25) ISOTOPE ABUNDANCE 18…
Introduction Density measures the volume that a given amount of mass takes up. Usually, density has grams per unit volume as a unit. To find the density of an object, the object has to be measured and its mass has to be divided by its volume. Often times, density is used to identify substances, since different elements have specific densities. This experiment is made up of two sections; the first section measures the density of water and the density of an unknown substance.…
Cecilia Wong Nature of the task and the research question: Two centimetre piece of potato is bathes into different salt solutions (0%, 5%, 10%, 15%, 25%, 35%) over a period of time, to determine the effect of different salt solutions on osmosis. To investigate the effect of increasing the concentration of sodium chloride (0%, 5%, 10%, 15%, 25%, 35%) on the process of osmosis, by calculating the mass change of the potato core (g, ±0.01g) at room temperate of lab (25.0˚C) Table 1: Raw data Table of Random uncertainties Equipment Limit of reading Random uncertainties Electronic balance 0.01g ± 0.01g Ruler 0.5cm ±0.5cm Table 2: Quantitative raw data The mass of the potato core (g, ±0.01g) at different sodium chloride concentrations (0%, 5%,…
Experiment Summary The purpose of this experiment was to determine the copper content of brass using iodometry. This was accomplished by creating a thiosulfate solution and standardizing it by titrating using a known amount of KIO3. The second part of the experiment involved preparing a brass sample and allowing copper to react with excess iodide to form I2. The resulting I2 was then titrated with the thiosulfate standard.…
The results illustrated that the percent composition by mass of magnesium oxide was variable. As shown in Figure 1, the expected percentage composition of magnesium was 60.32% and that of oxygen was 39.68%. However, based on the results obtained through this experiment, the compositions were very different as compared to the expected results. The percentage composition…