6-1 Activity- Science in the Real World

The Covid-19 pandemic has many experts commenting on the science associated with the virus - origins, vaccines, monoclonal antibodies, masks, social distancing.  It is important to consider what the experts say, but to also evaluate their statements.  We will start with the scientific method.  I want you to outline the scientific method from what you have been taught in previous classes.  You can list steps, parts, process, short descriptions, whatever.  If not taught in previous classes, then you will make your best guess about it.

The phrase "Benign by design" is often associated with green chemistry. In your own words, what does this phrase mean in relation to green chemistry?

Which of the following is not one of the 12 principles associated with green chemistry? O real-time analysis for pollution prevention O design of safer chemicals use of renewable feedstocks O prevention of waste O promotion of flammable reagent use

Histology stains that are used to create microscopic images originally came from the industry. clothing cosmetics healthcare automotive food

You work in a research organization that is looking for markers of various diseases that can be used as a diagnostic for the disease. It has been reported in the past that high levels of Cu are found in the sweat of people with cystic fibrosis. One of the research projects is focused on looking for high levels of Cu in samples that can be obtained non-invasively such as saliva, sweat, hair, nails, etc. The lab will analyze large samples for Cu. What instrument would you recommend purchasing to support this work, Atomic absorption spectrophotometer or an inductively coupled plasma atomic spectrophotometer? Explain the basis for your decision.

Concentrated sulphuric acid is used in this experiment to O help the crystal growth of acetylsalicylic acid speed up the reaction of aspirin synthesis increase the activation energy O avoid impurities getting trapped into the aspirin crystals P Type here to search

A chemist working as a safety inspector finds an unmarked bottle in a lab cabinet. A note on the door of the cabinet says the cabinet is used to store bottles of carbon tetrachloride, diethylamine, methyl acetate, tetrahydrofuran, and acetone.   The chemist plans to try to identify the unknown liquid by measuring the density and comparing to known densities. First, from his collection of Material Safety Data Sheets (MSDS), the chemist finds the following information:

Environmental science is an interdisciplinary field of study. This means that.. * Multiple branches of science only (biology, chemistry, etc) are covered. Many science and non-science fields of study, such as economics and politics, are included. It is limited to only one branch of science; ecology. Each environmental issue is specific to only one type of science.

Safari File Edit View History Bookmarks Develop Window Help Not Secure - a5.chem.binghamton.edu o E LON-CAPA t30p04a O [엘소드/KR Elswrod] 범… MC Kimetsu no Yaiba - Di. As you work on the questions, have your lab manual and text book handy. If you have questions go to one of the office hours and remember, do not leave it for the last minute! In the titration of 25.00 mL of a water sample, it took 19.090 mL of 3.165x 10-3 M EDTA solution to reach the endpoint. Calculate the number of moles of EDTA required to titrate the water sample. (enter your answer with 3 significant figures) 6.04x10-5 You are correct. Your receipt no. is 151-9969 ? Previous Tries The total hardness is due to one or a combination of Ca2+, Mg2+, and Fe2+ in your sample. It is convenient to express this hardness as though it was entirely due to Ca2+. Making this assumption, determine the number of moles of Ca2+ present in the bottled water sample titrated. (enter your answer with 3 significant figures) 6.04x10-5 You are…

A chemist working as a safety inspector finds an unmarked bottle in a lab cabinet. A note on the door of the cabinet says the cabinet is used to store bottles of glycerol, pentane, acetone, tetrahydrofuran, and dimethyl sulfoxide. The chemist plans to try to identify the unknown liquid by measuring the density and comparing to known densities. First, from his collection of Material Safety Data Sheets (MSDS), the chemist finds the following information: liquid density glycerol 1.3 g•cm pentane - 3 0.63 g·cm 3 0.79 g·cm аcetone tetrahydrofuran 3 0.89 g·cm dimethyl sulfoxide 1.1 g·cm Next, the chemist measures the volume of the unknown liquid as 0.683 L and the mass of the unknown liquid as 752. g. Calculate the density of the liquid. Be sure -3 Ox10 your answer has the correct number of significant digits. 1101 g·cm Given the data above, is it possible to identify the liquid? yes no

Using any chemical concept in a lab using TLC, make a connection to an event in the news. Your writing should find at least one way, if not more, in which the chemical concept you have chosen is demonstrated.

3-4 sentences   1. Briefly state what separates science from opinion?   2. Water is the most important molecule to life on this planet. Briefly explain why water has the unique properties it does (high boiling point, high freezing point, high capacity of heat, etc.), especially for a small molecule.   3. How does the depth of water affect light availability? How deep does light penetrate ocean water? How might this affect ocean life?   4. The world oceans are dynamic. One reason is because the oceans are in constant motion. One means of water motion are waves. What are waves? What are three factors that affect wave height?

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. Which of the 6 fiber types are natural? Which are man-made? Are fibers classified or individualized?  Why? What is the identity of your assigned unknown?

A chemist working as a safety inspector finds an unmarked bottle in a lab cabinet. A note on the door of the cabinet says the cabinet is used to store bottles of methyl acetate, chloroform, ethanolamine, diethylamine, and tetrahydrofuran. The chemist plans to try to identify the unknown liquid by measuring the density and comparing to known densities. First, from his collection of Material Safety Data Sheets (MSDS), the chemist finds the following information: liquid methyl acetate chloroform ethanolamine diethylamine tetrahydrofuran density 0.93 g ml 1.5 g ml 1 -1 1.0 g ml 1 0.71 g ml 0.89 g ml. Next, the chemist measures the volume of the unknown liquid as 1005. cm' and the mass of the unknown liquid as 1.49 kg. Calculate the density of the liquid. Be sure your answer has the correct number of significant digits. Given the data above, is it possible to Identify the liquid? If it is possible to identify the liquid, do so. 0 gml. yes no methyl acetate chloroform ethanolamine…