Relative density

the liquid was decanted into a plastic bottle. 2. List each test you performed to determine the identity of this unknown substance from your sludge and give actual data collected (boiling point, density values, relative density, etc) that you used as evidence. • The first test performed was the density test. The measured was of the sample was 14.51 grams, and the volume was 20 cm3.

CHM130 Lab 6 Exploring Density Name A. Data Tables Place your completed Data Tables here Part IIIa (3 points) Volume of water in graduated cylinder (mL)10 mlMass of rubber stopper (g)11.15Volume of water and rubber stopper (mL)16.5 Part IIIb (6 points) Volume of water in graduated cylinder (mL)20Mass of iron nail (g)3.66Volume of water and iron nail (mL)20.5 Part IV (20 points) Type of Aluminum FoilMass (g)Length (cm)Width (cm)Volume (cm3)Thickness (cm)Regular.63g15 cm 10.02 cm.21 cm3.0014

1 ABSTRACT In this lab exercise, different approaches, Hydrometer, Pycnometer and refractometer, were used to determine the total solids or concentration of two unknown samples. Standard curve of density vs concentration and standard curve of specific gravity vs concentration were drawn with a series of known concentrations of 10%, 20%, 30% sugar solution by weight. With the standard curve and the specific gravity and refractive index of samples we obtained from the determination, we can calculate

In order to study the kidney 's regulation of plasma volume, osmolality, and pH, the changes in urine flow rate, specific density, and urine pH of adult human subjects were measured. Subjects were assigned one of four beverage options: water, Gatorade, Coke, or nothing. Beverages of different compositions were used to study what effects does fluid intake have on urine volume and composition. Subjects fasted five hours prior to the experiment, in which the subjects were required to void and test their

The density of water is its mass divided by its volume. In this case, the mass of water was determined by subtracting the final mass of the glassware with water by the initial mass of the glassware without water. The volume was determined by observing closely which line (marked on the sides of each glassware) the water reached and reporting the most precise measurement. Based on the class data, the average densities of water and its standard deviations were: 50-mL beaker – avg: 0.90 g/mL, stand dev:

Density: Using Experimental Techniques to Solve an Inquiry based problem ABSTRACT The topic of this experiment is Density. The objective is to find two ways in which the density of a given object can be determined, and to find out which of the two ways is more accurate and hence better to use in such a case. The two methods used in this experiment are finding the dimensions of the object and water displacement. These are two ways of finding the volume of an object, and they were chosen since

CHM130 Lab 6 Exploring Density Name:        Paige Miller      A.  Data Tables Place your completed Data Tables here: Part IIIa  (3 points) Volume of water in graduated cylinder (mL)  10.00 mL Mass of rubber stopper (g)  11.37 g Volume of water and rubber stopper (mL)  16.50 mL Part IIIb  (6 points) Volume of water in graduated cylinder (mL)  20.00 mL Mass of iron nail (g)  3.45 g Volume of water and iron nail (mL)  20.50 mL Part IV  (20 points) Type of Aluminum Foil Mass (g) Length (cm) Width (cm)

imperative to acknowledge the accuracy, precision, and percent error of the measurements. Accuracy is how close the results are to the actual accepted measurement, also known as the “true” value. Precision is how close two or more measurements are relative to each other, only found by measuring a solution multiple times. Percent error is the difference between an an accepted value and a measured value, and is used to determine the accuracy of measurements.Understanding the importance of the aforementioned

relationship between density, mass, and volume. These three qualities are all related in that ρ = m/v, where p is density, m is mass, and v is volume. Through this experiment, however, it can be seen that by mixing certain substances, the density of the mixture can change, allowing certain goals to be met. In addition to this, finding density can be essential, as any substance has a density unique only to itself. For example, water (H2O) has a density of 1 g/mL, so any substance with that density has to be

Density is the measurement of an object that has a relative mass and is divided by a specific volume. Mass is the amount of matter an object possesses. Volume is the amount of space of an object occupies (solid, liquid or gas.) In chemistry the term density can be described as a physical and intensive property of matter. The term intensive property means, it is independent on the size and amount of a substance. Many chemist compare different types of densities of elements and substance with water