Morever, for measuring the density using hydrometer large sample volume is required. Conclusion In conclusion, almost our group reached main target. We used two different methods which were hydrometer and density bottle method in order to measure the density of water at different temperatures. We calculated the densities of water which were 995, 992.5, 991, 990 kg/m3 for the first part and 967 kg/m3 for the second part. Finally we compared these two methods in order to decide which method is more suitable.
The principle states that upward buoyant force, which is exerted on a body immersed in a liquid will be equal to the weight of the liquid that the body will displace. (Density of object)/(Density of fluid)=(Weight of fluid)/(Weight of displaced
The experiment tells us that the higher the amount of percent salt solution that’s in the volumetric flask, the higher the density will be. Acknowledgements: Acknowledgements to our professor Ms. Monika Nimavat, California State University, Fresno, the tutors in the learning center for their patience and their help. +++
In order to calculate for the molar mass the temperature, volume, mass, and pressure was measured. The ideal gas law equation was derived in order to express the relationship between the molar mass, mass of the condensate, temperature, pressure, and volume. A 125-mL Erlenmeyer flask was added with an unknown liquid, was capped with an aluminum foil with a tiny hole and was heated in boiling water in a beaker until the liquid in the flask is vaporized. The flask was cooled until condensate is observed. After cooling, the flask was weighed in an analytical balance.
Buoyancy is what keeps objects afloat. If an object is less dense than the water or air surrounding it, the object floats; if the object is denser, it sinks. When an object does float on water, the water will not remain flat, but will instead form a bump or dimple, depending on the object’s weight. When two identical objects float close together, the change is more noticeable—two cheerios, for example, will cause slight dents in the milk and close together, will appear to “fall into” each other or form clumps. Surface tension is a property that makes the surface of a liquid act like a flexible membrane.
GRAVIMETRIC DETERMINATION OF MOISTURE AND PHOSPHORUS IN FERTILIZER SAMPLES Magdato, K. C. , Balbuena, J. S. Institute of Chemistry, University of the Philippines, Diliman Quezon City Date Performed: August 27, 29 and September 3, 2014 Date Submitted: September 10, 2014 Abstract The experiment aims to use gravimetric method of analysis in determining the moisture and phosphorus content in a fertilizer sample which is important in plant growth. The procedure included constant weighing of the crucible and sample. The addition of ammonia and magnesium sulfate heptahydrate caused the formation of the precipitate identified as magnesium ammonium phosphate hexahydrate(MgNH4PO46H2O). The weight of the precipitate was used to determine the mass of
Abstract: This lab is envisioned to experimentally authenticate the theoretic formulations leading hydrostatic force and pressure middle on flooded flat superficial. The impartial of this laboratory is to regulate the hydrostatic insertion interim on plane superficial engrossed in water when the surface is partially submerged or fully submerged. Also to determine the untried center of pressure and the theoretic center of pressure for every of the trials executed. Introduction: When the quadrant is engrossed in water, it is conceivable to examine the forces substitute on the exteriors of the quadrant as: 1) the hydrostatic potency at a few facts on the bowed outsides is normal to the superficial and consequently fortitudes over and done with the hinge point for the reason that the pivot point is situated at the derivation of the radii. Hydrostatic forces on the higher and inferior curled exteriors consequently have no net rotation consequence; 2) the forces on the edges of the quadrant are equivalent and conflicting parallel forces; 3) the hydrostatic force on the perpendicular
Biology Design Practical Joshua Edwards What are effects of the volume of a potato and the amount of weight it loses when placed in salt solution? Introduction This design practical uses a potato’s surface area to volume ratio to see what affects it has on osmosis in different concentrations. Osmosis is the movement of water molecules through a cell membrane into an area of a higher solute concentration. The movement goes the way of the solvent with more solute because the lower solute concentration is drifting through balancing the ratio of solute per solvent (En.wikipedia.org, 2018). Surface Area to Volume Ratio shows the amount of area the entity has versus the amount of space inside the entity.
The term ‘tides’ describes the fluctuations in the rise and fall of the sea’s water height with respect to the land surface, this oscillation is produced by the gravitational attraction of the moon and the sun. In 1687, Sir Isaac Newton explained that ocean tides result from the gravitational attraction of the sun and moon on the oceans of the earth (Sumich, J.L., 1996). Tides can also be classified as very long period waves that have the capability to travel through the ocean due to the mutual gravitational attraction. Tides are generated in the oceans and progress towards the coastline where they appear as the regular rise and fall of the sea surface. Gravity is one of the major contributors in creating tides.
2.4 Theoretical decompression wave speed Theoretical decompression wave speed was calculated on the basis of Moens-Korteweg’s hydraulic transient equation which is used for finding the speed of pressure wave in the Joukowsky water hammer equation , , . Originally the equation was used for describing hydraulic transient of flowing liquid inside a pipe restricted by sudden blockage or closure of valve. In S4 test, the conditions are contrariwise, the pressurized fluid is suddenly released due to the propagating crack. This makes the fluid ahead of the crack to back-flow axially triggering a set of expansion wave/decompression wave .Due to the similarity, the equation for compression wave speed measurement in water hammer can be used for determining the speed of decompression wave. As in the experimental set-up, the water is confined in a pipe, the decompression speed (Cw) has the following relationship .