Title: The Effect of the Amount of Salt (Mass) on The Density of Coloured Solutions Question: How does the Amount of Salt Solution (Mass) Affect the Density of Liquid Solutions? Background Research: Density is how light or how heavy something is, depending on its size. Density can determine an object’s mass or volume. If an object is more dense, it will sink and its atoms would be closely packed. When an object is not dense, it will float which will make the atoms loose. Scientists are able to measure density by dividing the mass of an object and dividing the object by its volume. Overall, density is the amount of mass in a given space. Variables: Independent Variable: Different Amount Of Salt (Mass in Grams) Dependent Variable: Density of Salt Solutions (Layering of Solutions) …show more content…
Using the pipette, put a few drops of coloured solution in the straw. Try to layer a second color on top of the first color. Use the given combinations to find out which of the colored solutions will show clearly the four colored solutions stack each other. Use colored pencils to keep track of your results in the straws. Circle the color combinations that produced the correct combination. Results: Colored Solutions (Mass) Mass (Grams) Volume (ML) Density Red 25 25
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The third peak consisted of all four colors and finally the large peak consists of green and blue. Orange dyes would probably have the more noticeable peaks at the shorter wavelengths because both red and yellow both have peaks at the shorter wavelengths. Purple dyes would most likely have one distinct peak for a short wavelength and then one distinct peak for the longer wavelength because red has peaks at short wavelengths and blue has peaks at long wavelengths. The data observed looks almost nothing like the D2L data.
In this week’s lab we had to determine the density of a quarter, penny, and dime. My question was “How does is each coin?” Density is the amount of mass in an object. To find the density of each coin in this lab, we used a triple beam balance to find each coin’s mass and a graduated cylinder to find their volumes. With all this information, I can now form a hypothesis.
In this lab we were trying to figure out if Salt Creek and Barker Lake had the correct chemical balances to sustain catfish for the years coming. In order to find this out, we tested the water using a Hach Water Testing Kit. Inside were dissolved oxygen reagent powder pillows 1, 2 and 3 which we added and mixed into our sample water to prepare it for testing. Then we added droplets of Sodium Thiosulphate Solution into the prepared water too see how much dissolved oxygen parts per million were in the water. Our independent variable in this experiment was the 5 different testing sites that we went to for water samples.
By reading the new volume of the liquid substance amount one will then subtract the initial milliliter amount from the final volume reading, thus giving you the volume of the rock sample. Using the mass of the sample rock obtained one will then divide the final volume reading unveiling the density of the
When the layers of the Earth move it causes the tectonic plates (aka: plate tectonics) to move which causes the Alaskan Way Viaduct to collapse. The layers of the Earth are the inner core, outer core, mesosphere, asthenosphere, upper rigid mantle, oceanic crust, and the continental crust. The Density Column lab showed how things can have different densities like the layers of the Earth. It also showed how things that are most dense stay more towards the bottom and least dense stuff stays more towards the top.
Fill the well with 90ml dh20 to reach 100ml. move 10 ml of the second well to the third well. FIll the third with another 90ml dh20 to reach 100ml. Move 10 ml of the third well to the fourth well. Fill the fourth well with 90ml dh20 to reach 100ml.
Paragraph 1 The objective of the experiment is to test; how will water temperature affect the rate of reaction of an alka-seltzer tablet? The dependent variable of the experiment is the dissolving time. When an alka-seltzer tablet starts to fizz it begins to dissolve, due to the citric acid and sodium bicarbonate the tablet contains (Clark, “Why does Alka-Seltzer fizz?).
If we were given a random sample of pennies, then we could measure the mass and the volume of the pennies. From these measured values we could calculate the density. Then we could compare our calculated density to the given density value of copper and we could find the the percentage of error between copper and the measured density. Conclusion: If the percentage of error between the copper and the measured density of the pennies was large and the values were not in comparison to the density of copper, then we would know that the density of a penny is not the same as the density of pure copper.
When concentration increased, absorbance increased, and when concentration decreased absorbance decreased as seen in the graph of Concentration vs Absorbance. Equation 1 〖rate〗_1/〖rate〗_2 =(k〖[Dye]〗^n 〖[NaOH]〗^m)/(k〖[Dye]〗^n 〖[NaOH]〗^m ) For all the solutions, the rate of decay of dye was linear on a ln[A] vs time graph with a slope of -k, thus indicating the rate order for the dye as first order4.
Ecology 1-Page Report Introduction Ecosystems, ones containing a producer, consumer, and sometimes a predator, can impact the stability of a system. Each organism in the ecosystem plays a key role in interacting with others and maintaining or changing the overall food web. The food web is designed to evolve in a chain reaction progression where the producer produces food for the consumer and the consumer is essentially consumed by the predator if one is present, creating ecosystem stability. Dunaliella is a primary producer in sodium chloride and water environments and is the backbone to the ecosystem created for experiment. Artemia, a small, transparent in color, shrimp, is a consumer of algae and preys on primary producers in the system while hiding from Aiptasia, a dark brown, shelled
7)Use toothpicks to transfer the dye from the skittles onto the coffee filter strip. 8)Measure about 1/4 inch from the top of the coffee filter strip and tape pencils to the top. 9)Place each coffee filter strip over a cup with the pencil holding and balancing it at the top. 10)Fill cup with water so the water is slightly touching the coffee filter strip. 11)
This information was found in the “Density Column lab” and “Sink or Float Lab”. In the labs, it was discovered that the less dense liquids would be on top and the more dense liquids would be on the bottom. The liquids posed as the layers of the Earth. Density is how much matter can go into an object. According to the “Density Cubes Lab”, the more atoms in one object, no matter the size, can be
Density is the calculation or equation of mass divided by volume and it can be used to identify different substances. Density is always the same in one object or substance because density is a constant ratio. Objects have “lighter” densities will float while objects that are “denser” will
How does the type of dissolvent in the water affect the number of drops that can fit on a penny? We will attempt to find the answer to this question using the hypothesis “If we use salt water solution, then there will be more drops on the penny. ” We will use the materials salt, sugar, lemonade mix, flour, a beaker, a pipette, paper towels, a stirring rod, a graduated cylinder, and some tap
When the concentration of the salt was increased, the amount of water decrease and it is the same the other way around. The mass of the egg will increase if the amount of water is more than the concentration of the salt water and all of this happens because of osmosis. This motion will cause the water to continue moving back and forth across the membrane to create and equilibrium, with equal concentrations on both