Density

water into the beaker, and then reweighing the beaker. Next, the weight of water was calculated by subtracting the weight of the empty beaker from the weight of the beaker containing water. These values were then converted to water volume using the density of water at a temperature of 19.5 °C; 0.998 g/ml. The weight of water measurements, 9.82 g, 9.90 g, and 9.94 g, were converted to water volume by dividing by 0.998 g/ml as shown below. Volume = (9.82 g) / (0.998 g/mL) = 9.84 mL Volume =…

of the eggs is greater than the density of water. Then salt water 1-2 a spoon and stir in the eggs slowly, still also sank because of the eggs is still greater than the density of water. Drift An object that is dipped into the liquid will float if heavy objects are similar in style to the top or the object in equilibrium By the time the water was given a 2 ½ spoon of salt and stir gradually then egg will be on a State of drift. This happens because the density of water is equal to the mass…

Lab 4 in Chem 115 has three parts all calculating density. In part one, a 100 mL beaker, a volumetric pipet, and an analytical scale were obtained. To begin, the mass of the beaker was taken using an analytical scale. Then, 10.0 mL of an unknown liquid was transfered to the beaker using the volumetric pipet. Next, the mass of the beaker and liqiud was recorded along with the letter identifying the unknown liquid. By subtracting the mass of the 100 mL beaker from the mass of the beaker and liquid…

this experiment was to illustrate how to determine the density of a liquid and regulate volumetric glassware properly. To determine the mass of liquids using a scale, the density of water and (unknown) liquid D were weighed, inside of a volumetric flask. Once the mass was determined in grams, the density was easy to determine, by using the density equation. The second portion of this experiment was to calibrate a 10mL pipette. Once the density was determined for this section, the pipette…

Lab two explored varies ways to find the density of objects. This lab used displacement , measurement, and the density formula to make observation and collect data about the balloon filled with sublimed dry ice, various water samples, and a golf ball. The ultimate goals of this experiment were to collect the most precise measurements of displacement of the balloon in the tap water, the weight of the three water samples versus the original cylinder, and diameter of the golf ball in order to use…

Injection Machine 4.6.1 Calculation of the Injection Volume Figure 4-8 shows the volume of plastic parts by Solidworks modeling. Figure 4-8 Volume of the Stress Cone Plastic parts volume: Vplastic = 4.198 × 10-5 m3 = 41.98 cm3 Plastic parts density: ρ = 1.2 g/cm3 Plastic parts quality: mplastic = ρVplastic = 1.2 × 41.98 = 50.376 g 4.6.2 Preliminary Estimation of the Gating System Although the gating system of condensate cannot determine the exact value prior to design, it can be…

ratio of M-S-H binder In development of M-S-H binder with magnesium oxide and silica fume, it is noted that silica fume has rather low specific gravity (S.G) and bulk density compared to Portland cement (PC). Thus, use of high silica fume content in the binder consequently results in a binder system of low specific gravity and bulk density, compared to PC. The light weight binder leads to a difference in water to binder ratio (by mass), compared to PC. To compare water content by mass of M-S-H…

Simple distillation was used for a liquid whose boiling points is 25 degrees Celsius over the other liquid, whereas fractional distillation is used for liquids with boiling points that are closer than 25 degrees Celsius apart. To obtain the highest percent ethanol, fraction distillation is proven to be the most effective. Because the 2 liquids have a boiling point difference of about 25 degrees Celsius, we used both simple and fractional distillation to remove the ethanol from the water.…

Introduction: Water quality is the scientific measurement describing the cleanliness of water and/or the condition of the water being studied. Factors that used to describe water quality are pH, Dissolved Oxygen, Temperature, Turbidity, Nitrogen, Biological Oxygen Demand (BOD), Fecal Coliform, Phosphate, and Total Solids. Water quality is important to know because water is a necessary part of life, and people need to know how clean the water they’re using is. Water quality is important for…

One of the topics covered deals with salinity and temperature. As part of the lesson, students will essentially understand how (1) temperature and salinity affect water density and (2) how those previously mentions characteristics affect how heat moves globally. This lesson comes toward the end of the oceanography unit in the class. In days prior, students have learned about waves, tides and currents. For the lesson students…