What are fibers and where are they found? How could forensic scientists use fibers to solve a crime? Define the word probative. What is the probative value of your unknown fiber identities, for a forensic investigation? Starting from the crime scene, explain the steps you would follow to collect, preserve, and identify fiber evidence.

Q: What are replicates in Analytical Chemistry? O The component of a sample that repeats over different…

A: Analytical chemistry is the repeated analysis of a single sample and is a measures of the greatest…

Q: In 1993 the Minnesota Department of Health set a health risk limit for boron in groundwater of 600.…

A: Given that: mass per liter = 600 μg/L Volume = 94.0 mL To find the mass in micrograms of boron?

Q: K Maya Paniagua - RC Ch 10 HW.p X E The State of Nature & the Social The School District of Palm…

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Q: 3. From the following data, compute the percent recovery of copper. If the masses given are correct…

A: It is defined as the percentage of the amount of substance that has been obtained after a certain…

Q: Which of the following are chemical changes?         mold Distillation of Salt Water Cutting Fabric…

A: In chemical changes two or more substances combine to obtain a new substance which is totally…

Q: While creating a piece of art work, a student becomes curious about the ink he is using to create…

A: The ink is a homogenous mixture, as it appears to be uniform throughout.

Q: In a dry test tube, put enough cane sugar to make a layer about 1⁄4 inch deep. heat the tube in the…

A: During the hearing process of cane sugar in test tube, sugar first melts, then turns brown, and…

Q: After creating her standard curve for absorption versus the concentration (M) of FD&C Red 40 and…

A: The objective of this question is to find the percent by mass of FD&C Red 40 in the Kool-Aid…

Q: 5. Given your experience in mass determinations and with volumetric glassware, which factor used -…

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Q: In the course of a conversation, you observe that three of your friends like horror movies. Horror…

A: The hypothesis can be tested as explained in the following step.

Q: Scenario In an investigation, lab groups combine two compounds, as shown below. Based on the data…

A: Given mass of magnesium is 5 gram and given mass of HCl is 15 gram . first we are going to calculate…

Q: Describe the difference between accuracy and precision. How do we determine accuracy and precision?

A: Accuracy is the measure of closer agreement between true value or accepted value and  specific…

Q: A sample was placed on a chromatography column. Methylene chloride was used as the eluting solvent.…

A: Chromatography is a laboratory method for the isolation of mixtures. The substance is immersed in a…

Q: fossilized bones have a large concentration of apatite rock (Calcium phosphate) design or talk about…

A: Fossils are basically remnants or remains of ancient living forms (  plants, animals, bacteria,…

Q: After creating her standard curve for absorption versus the concentration (M) of FD&C Red 40 and…

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Q: The role of science is to supply accurate and subjective information related to a crime, which would…

A: Please find your solution below : Forensic science is one of the important application of science…

Q: The U.S. Government has about 1.23 * 107 pounds of gold in Fort Knox. How much is it worth at…

A: 1.23 X 107 pounds of gold = 12 X 1.23 X 107 Toz = 14.76 X 107 Toz

Q: A molecular biologist measures the mass of cofactor A in an average yeast cell. The mass is 64.22…

A: Metric conversion factors are used to convert the units of numbers.  Some of the factors that can be…

Q: A solid white substance A is heated strongly in the absence of air. It decomposes to form a new…

A: Given: Solid white substances is heated in the absence of ar to produce a new white substance B and…

Q: A student plots the graph of absorbance vs. concentration for their sample. They end up with a line…

A: Question is based on the concept of absorbance and concentration. we have been given the line with…

Q: A student performed the fractional distillation of a cyclohexane/toluene mixture. The refractive…

A: Mole fraction is the ratio of moles of solute to that of total moles of solution. Mole percentage of…

Q: Imagine a world in which all the elements existed, but they couldn't form any chemical bonds with…

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Q: Suppose you need 6.0 m of Grade 70 tow chain, which has a diameter of 3/8" and weighs 2.16 kg/m, to…

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Q: A meter of polyaramide fiber has a diameter of 450.μm , a mass of 0.198g , and takes 0.25s to…

A: One unit of polyaramide fiber = 1 meter long, diameter is 450 μm mass of 1 unit fiber = m = 0.198…

Q: We commonly encounter chemical reactions in daily life such as fire and biological metabolism. Cite…

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Q: A standard curve for absorbance vs. concentration has an equation of y = 2.0x.  If an unknown…

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Q: WOOJSSPIO an u ainspauL DUP aidups upn no Why is this principle about the relationship between mass…

A: Mass and volume are interconnected with each other and they are always true for the substances but…

Q: The speed of light is 2.998x10^8 m/s. How long does it take light to travel 40.cm? Set the math up.…

A: Given that,    Speed of light, s = 2.998×108 m/s   Distance travel by light, l = 40.0 cm  Time taken…

Q: Calculate the number of atoms in 264. ug of cadmium. Be sure your answer has the correct number of…

A: Given:Mass of cadmium (Cd) = 264 g = 264 x 10-6 g = 2.64 x 10-4 gWe have to determine the number of…

Q: The different colors of light have different wavelengths. The human eye is most sensitive to light…

A: Since you have asked multiple question we will solve the first one for you. If you want answer to a…

Q: An analyst conducted suction filtration for a certain 3.0 gram of solid. After filtration, the…

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Q: 4- Give any branch of chemistry that is widely studied?

A: Given: Branch of chemistry To find: Any branch of Chemistry that is widely studied.  Solution:…

Q: Suppose you prepared a plot for this experiment and the equation of the trendline was y =…

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Q: Suppose some measurements are made on two different homogeneous stones to find out if they are made…

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Q: The Calcium content of a banana sample was homogenized and measured. Are the results comparable? Do…

A: Analytical chemistry is the branch of chemistry which deals with determination of constituents of a…

Q: What is the percent abundance (in units of percent) of zinc in a sample whose density is 7.27 g/mL…

A: Given,density of sample =7.27 g/mLcopper fractional abundance=0.152density of pure copper =8.96…

Q: gasoline and diesel are complicated mixtures. These formulas are something like weighted averages of…

A: 4) Given data is  The density of Gasoline (C9H20) = 0.718 g/mL  The density of Diesel(C14H30) =…