Lab 2 AssignmentNatasiaJamerson

A cough syrup has a density of 1.20 g/mL. A doctor orders 48.0 g of the syrup for a sick child. How many teaspoons (tsp) will you administer to the child? (1 tsp = 5.0 mL). 1) 6.4 tsp 2) 8 tsp 3) 4 tsp 4) 5 tsp

1. What are fibers and where are they found? How could forensic scientists use fibers to solve a crime?   2. Define the word probative. What is the probative value of a fiber in a forensic investigation?     3. Describe steps you would take from collecting a fiber(s) at a crime scene to performing an analysis to determine its identity.     4.  Which of the 6 fiber types you observed are natural? Which are man-made?     5.  Are fibers classified or individualized? Why?

er x internet hotspot > login x A Conciergo - Hollywood S x G delano youtube - Google X G ma /StudentFunctions/Interface/acellus_engine.html?classID=623972166 What Is Weight? If two astronauts have the same mass and one is on Earth and the other is on Jupiter (a larger planet), what can be said about their weight?

Q25:  There are so many microbes in a single mL of culture, it is very difficult to perform one dilution to produce countable cells. Microbiologists need to perform a dilution series, where multiple dilutions are performed in sequence to arrive at the correct dilution. Dilutions are cumulative.  Multiple the series of dilutions together to find the final dilution value. If 2 serial dilutions are performed, each with a value of 1, what is the cumulative dilution? Express your answer as standard notation with zero decimal places.

Question #6

If you were told the average weight of a chickadee is 1.5gm, does that mean all chickadees are 1.5gm in weight? Explain. How would you find out the range of weights?

The study of detecting small quantities of substances in samples would most likely be performed by a chemist in the branch of chemistry known as ___ . organic chemistry biochemistry inorganic chemistry analytical chemistry physical chemistry

You have a 11.5 mg sample of blood that contains various proteins. Hemoglobin is the only protein in the sample containing Fe. Hemoglobin contains 3.83% by mass of a compound called heme (C₃₄H₃₂FeN₄O₄, MW = 616.49 g/mol). You find that your 11.5 mg blood sample contains 27.1 micrograms of Fe. What is the mass percent of hemoglobin in your protein sample?

You have a 11.5 mg sample of blood that contains various proteins. Hemoglobin is the only protein in the sample containing Fe. Hemoglobin contains 3.83% by mass of a compound called heme (C₃₄H₃₂FeN₄O₄, MW = 616.49 g/mol). You find that your 11.5 mg blood sample contains 34.9 micrograms of Fe. What is the mass percent of hemoglobin in your protein sample?   -don't prematureley round

In my on-campus Organic Chemistry II Lab, my students make aspirin. The melting point in the literature for aspirin is 134-136°C.   Suppose the sample of aspirin one of my students made has a melting point range of 129-133 °C.  Using this information, answer the following: 1.  Do you think the student made aspirin?  Why or why not? 2.  How could you test your hypothesis?  Explain what you would do and what the results would look like if they made aspirin versus if they didn't.

This is a question on a prelab: Poly(amide) is a polymeric substance more commonly known as nylon. As a solid it has a density of 1.22 g/mL. What volume of water (density = 0.997 g/mL) would need to be added to 15.0 mL of glycerol (density = 1.26 g/mL) to just suspend a piece of solid nylon with dimensions of 1.0 cm x 2.0 cm by 2.2 cm? How would I go about starting this?

If you are using a polymer with a density of 1.33 g/mL and you place a 42.865 g cylinder of that polymer in a 100-mL graduated cylinder that contains 69.8 mL of water, will the meniscus of the displaced water exceed the 100-mL mark of the cylinder?

The plot below from your book does NOT have data for ammonia. 1.0 T2.00 T1.50 0.8 T-1.20 0.6 T1.10 0.4 • Nitrogen * Methane a Ethane o Ethylene - Propane an-Butane - Isopentane n-Heptane . Carbon dioxide *Water 0.2 T=1.00 0.0 4. PR However, you can use this plot (an example of the law of corresponding states) to calculate the molar volume (V) of ammonia at a temperature and pressure of interest. What information do you need in order to do this? O The critical temperature and pressure for ammonia. The standard molar Gibbs energy for ammonia. O The normal boiling point for ammonia. O The vibrational spacing in ammonia.