Many plastics have a density that is less than 1.0. Could the water displacement method used to determine the densities of the solids in el laboratory be used to measure plastics in the density range of 0.8- 0.9 g/mL?

Q: Lavoisier developed a new theory of combustion that overturned the phlogiston theory. What…

A: Antoine Lavoisier was a French based scientist whose research was consisted of quantitative…

Q: if a substance has a density of 19.1 g/cm3 , what is the density?

A: The density of a substance is defined as a mass of a unit volume of the substance. The density of a…

Q: What is the density of aluminum if you have a piece of aluminum that is 10.5 cm x 10.5 cm x 0.1 cm…

A:

Q: I know in order to find the volume you take the density divided by the mass. Although, I do not know…

A: Given: Mass of the foil = 0.557 g Length of the foil= 9.85 cm Width of the foil=10.10 cm

Q: Mass Length Diameter Calculated Volume Small Cylinder 6.501 g 2.30 cm 1.55 cm Medium Cylinder 10.749…

A: Use the formula provided to find out the calculated volume of each cylinder.

Q: A 1.00m long beam of stainless steel with a square 2.00cm×2.00cm cross section has a mass of 3.02…

A: Given:Length of stainless steel=1.00 mCross-sectional area=2.00 cm x 2.00 cmMass=3.02…

Q: Is it possible for measured data to be precise but inaccurate?

A: Here we have to explainIs it possible for measured data to be precise but inaccurate-

Q: Convert 18.50 ft to the SI unit for length. A) 563.9 cm B) 0.005639 km C) 5.639 m An experimental…

A: SI unit of length is metremSI unit of mass is kg kilogram

Q: the diameter of a 16-gauge wire has a diameter of 0.05082 in. what length of wire in meter is found…

A: Diameter = 0.05082 inch. 1 inch = 2.5cm. 0.05082 inch = .05082 × 2.5 = 0.12705 cm.  Mass = 1.60lb =…

Q: Distinguish between accuracy and precision and between systematic and random error (§1.5) (EPs…

A: Accuracy – How close a measurement is to the actual or expected value. Precision – How close a set…

Q: What is the standard practice for significant digits when recording test data? Why are significant…

A: 1. Most standards for science and technology, led by ASTM E29, use the “five-even” rule. Under this…

Q: A block of wood which weighs 64.02 g and has the following dimensions: length of 15.0 cm, width of…

A: Consider the given information is as follows; Length = 15.0 cm Width = 11.0 cm Thickness or height =…

Q: A liquid sample was determined to have a density of 0.915 g/mL.  What is the mass of 85.5 mL of the…

A: The mass of 85.5 mL of the given liquid is calculated as shown below.

Q: föllówing data was collected from a solution that was prepared to allow a sample of plastic to…

A: The mass v/s density data curve given is,

Q: Land in an undeveloped area is being sold for $ 1.28 per square foot (ft2).  How much would 8.52…

A: Given that -  An undeveloped area cost = $ 1.28 /ft2    And given area of land = 8.52 m2    We know…

Q: A student obtained a density versus percent by mass sodium chloride standard curve for the Salt in…

A: The best fit curve on the density v/s percent by mass of NaCl solution is given as, => y =…

Q: Each pair of mass and volume values (for each cylinder) will be plotted on a scatter plot, with mass…

A:

Q: Using the correct number of significant figures, calculate the perimeter of a small, rectangular…

A: In addition or subtraction involving significant figures, the final answer should be reported as…

Q: Refer to this given: A block of wood which weighs 64.02 g and has the following dimensions: length…

A:

Q: An experiment called for 20.0 grams of concentrated sulfuric acid whose density is 1.84 g/mL. What…

A: Given the density and mass of a compound, its volume can be calculated as:

Q: I have to set up my chemistry homework this way as I need to know how to convert 27.6 mm to um and…

A: Applying given map for given data, mm→cm→m→Gm  and mm→cm→m→?m

Q: The density of human urine is normally between 1.003 and 1.030 g/mL, and is often used as a…

A: Given: Density range of normal human urine = 1.003 to 1.030 g/mL. Mass of urine sample = 26.875 g.…

Q: A rectangle has a length pf 12.5 cm a width of 2.75 mm. Calculate the area in ft^2.

A: Area of a rectangle is given by,         area = length x width

Q: 2. Direct measurement of solid density Glass Сopper Wire Solid Beads Form 0.597cm Diameter:…

A: Copper wire is looks like cylindrical shape. Therefore, Volume of copper wire = 3.14×(D/2)2(L) Where…

Q: A sample of gold weighs 1.2 oz. The sample is pounded into a thin rectangular sheet with an area of…

A: Mass of a substance has many units like gram, kilogram, oz etc. These units can be converted from…

Q: an unknown irregular solid weighing 136.092 g is dropped into a graduated cylinder containing 50.o…

A:

Q: What is meàn Tt mses fo measire fle dersity A rectangular solid measures 2.55 cm by 1.20 cm by 4.15…

A: We’ll  answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: How many cm3 are in 12mm3?

A: In the given question we have to do a unit conversion of (millimetre)3 to (centimetre)3 . we know…

Q: 4. Convert 0.0102 lb/in³ (pounds per cubic inch) to mg/mL using dimensional analysis.

A: The conversion of quantity from one unit to another unit is known as unit conversion. During the…

Q: A student estimated that the volume of a crucible was 28.6 mL. When the volume was accurately…

A: percentage error is given by  % error = (experimental value - actual value ) X 100 / actual value.

Q: 85.  Solve these problems about lumber dimensions. (a) To describe to a European how houses are…

A:

Q: A technician used a section of glass tubing to measure the density of   a liquid. The inside…

A:

Q: What is the density in g/cm3 ? mass= 0.9811g volume= 376.8mm

A: 1. In quantitative chemistry,  density is defined as, ratio between mass of substance in grams and…

Q: Length:3.55 cm Width:2.55 cm Mass:0.338 g   Volume of aluminum foil (cm3)

A: For given aluminum foil we have,  Length:3.55 cm Width:2.55 cm Mass:0.338 g  We know the formula…

Q: Solve these problems about lumber dimensions.(a) To describe to a European how houses are…

A: The dimensions given is, thickness X width X length = 1.50 in X 3.50 in X 8.00 ft Hence thickness =…

Q: Copper can be drawn into thin wires. How many meters of 34–gauge wire (diameter=6.304 × 10 in) can…

A: Given : Mass of ore of copper = 5.00 lb Mass percent of copper in ore = 66.0 % Diameter of wire =…

Q: suppose the density of 65 mL of some liquid was found to be 0.748 g/mL. What would be the specific…

A:

Q: 27) An artist plans to apply gold leaf to a painting with an area of 2.32 f? and a thickness of 1.50…

A: Volume of the painting can be calculated as:(1ft =30.8 cm and  1micrometer = 10-4 cm)

Q: Calculate the volume in mL

A:

Q: An Empty Graduated Cylinder weights 82.450 g. When filled to 50.0ml with an unkown liquid it weighs…

A: The values are given as follows:

Q: 10. ( IL Y How many millimeters are in 176.0 inches? How many picograms (pg) are in 1.46 x 10³…

A: Given, 10) how many millimetres are in 176.0 inches = ? 11) how many picograms (pg) are in 1.46 ×…

Q: 1) convert 0.66 ibs to grams. 2)convert 0.00534 in cubed to cubic decimeter. 3) convert 2.7 g/cm^3…

A: 1.Conversion of 0.66lb to grams.

Q: Convert the density of aluminum (2.7 g / ml) to kg / m3. Write the whole procedure.

A: Given : Density of aluminium= 2.7 g/mL The density of aluminium has to be converted into kg/ m3.…

Q: 0.0018cgh 10mrm -1.018mm) | 10. Copper has a density of 8.96 g/cm'. A piece of copper with into a…

A:

Q: Density of lead 75.63g (4 rods), start 21.0 ml, end 16.80ml

A: Calculate the density of lead in the given condition---

Q: A 150 mL beaker weighing 125.326 g had a 50.0 mL sample of an unknown liquid put inside of it. The…

A: Given: Mass of beaker = 125.326 g Mass of beaker and liquid = 164.776 g volume of liquid = 50.0 mL

Q: Convert the following into SI base units (meters, grams, liters). For example: given 1.45 mm (=…

A:

UV Visible Spectroscopy

Spectroscopy refers to the absorption or emission of light or other radiations by matter. When a substance or chemical absorbs light or radiation, they reach an excited state followed by de-excitation or emission of the light or radiation forming distinct spectra. UV-visible spectroscopy or  ultraviolet-visible refers to the absorption and emission in the ultraviolet and visible regions of the electromagnetic spectrum.