Lab 4 - Part II - Env Investigation

3. What should be worn in a laboratory at all times to decrease the likelihood of eye injury? What should be done if a chemical gets in the eye?

Identify basic procedures for dealing with laboratory accidents.

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Please help

• Stock solution: 1000 mg/L Target sample concentrations: 50-400 mg/L • Create a 5-point standard dilution to cover the test • If each test only needs 10 mL, make plans to make the dilution so you have 20 mL of each concentration. ·

If you wear contact lenses in the school laboratory, * you do not have to wear protective goggles. it's totally fine. You have nothing to worry about. take them out before starting the lab. advise your science instructor that you wear contact lenses.

What should be worn in a laboratory at all times to decrease the likelihood of eye injury?What should be done if a chemical gets in the eye?

FINAL Experiment 1- January 2021_-789644623 - Saved Layout Review View Table A friend of yours went panning for gold last weekend and found a nugget that appears to be gold. With your newfound scientific prowess, you set out to determine if it is really gold. Your tests show that the nugget has a mass of 7.6 g. Immersing the nugget in water raised the volume from 7.22 mL to 8.06 mL. The density of gold is 19.32 g/cm3. What will you tell your friend? acer

Choose the correct option for each question below The following statements are true except 1) Always tidy up your lab bench and make sure the equipment is ready for the next class.   2) Dispose solid chemicals down the sink.  3) Never insert your personal pipette into community reagent bottles.  4) Each person working in the laboratory must wear a lab coat.

When purifying a sample of aspirin that was produced in the lab, the impure aspirin sample should be dissolved in a very cold solvent, so that solid impurities can be filtered and analyzed the next day or the next week. True or False?

Read through each scenario. Under the scenario, write which lab safety rule is being broken and indicate the proper protocol for each. 1. Jane is participating in a lab in which she blows carbon dioxide into a beaker of chemicals. Some of the chemical bubbles up and gets in her eye. Her lab partners tell her to use the eye wash fountains to rinse her eye out; however, she does not know where the eyewash fountains are located. 2. Mike and Colleen had a lot of a chemical left from their investigation. They dumped the chemical in the sink and left the water running in the sink as they left class

Which of the following is an example of good lab safety practices?     Handling chemicals without wearing your PPE.     Taking off your goggles if you're not using chemicals, even if the person next you is working with chemicals.     Wearing shorts in lab.     Placing a cap on all chemical containers when not in use.     Wearing sandals or flip-flops to lab.

Subparts 4-6

What safety rules did Andrew break?

Which activities are likely to cause contamination of stock chemicals in the laboratory?

What is primary-standard grade classification of chemicals and give three examples.

5 please help! *urgent* write as many accurate and relevant statements about the picture below. please write more than 5 correct descriptions/statements. please be as descriptive as possible.

5

How do you apply 5s (sort, set in order, shine, sustain and standardized) of chemical safety specifically at HOME and SCHOOL? Enumerate.

MRI machines primarily work using ____.a. The nuclei of carbons in fatty acid chainsb. The nuclei of oxygen atoms from water molecules in the bodyc. The nuclei of hydrogen atoms from water molecules in the bodyd. The nuclei of radioactive isotopes injected into the body

0 / 5,000                         What is your question?   photo 0 / 2 Images Ask an Expert Submit your question Answers in as fast as 30 minutes* Questions are typically answered in as fast as 30 minutes* Like you, we deeply value honesty and integrity. Learn about our honor code. *Response times may vary by subject and question complexity. Median response time is 34 minutes for paid subscribers and may be longer for promotional offers. Get 24/7Homework Help! Ask a homework question in 30 subjects...and growing! Subject matter experts are on standby 24/7. Get a detailed solution in as fast as 30 minutes.* Recently asked questions     About FAQ Honor Code Code of Conduct Sitemap Careers Become an Ambassador Refer a Friend Contact Bartleby Contact Research (Essays) High School Textbooks Literature Guides Concept Explainers by Subject Essay Help

+ terface/acellus_engine.htm?ClassID=1467683063 Use the data below to determine the mass ratio of iron to oxygen for compound 2. Compound 1 2 Et onal Academy of Science. All Rights Reserved. Mass Fe (grams) 15.55 20.98 [20:1 Enter the answer that belongs in the green box. Iron Ratio Cmpd 2 Mass O (grams) 4.45 9.02 Sh Enter

Create an og (1) highschool-level and (1)  college-level chemistry joke. (do not copy from internet) subj: chemistry

as a laboratory analyst how can you reduce your waiting time during filtration

How do we prevent contamination of chemicals? Answer in 10 sentences. Thank you

Dipping into health When blood pressure is measured over a 24-hour period, this is referred to as ambulatory blood pressure monitoring, three patterns arise. Here are samples of three different individual. Let's call them Dick (1), Tom (2) and Harry (3). 1 2 3 Patient's Paticnt's BP BP Palicet's Upper limit Upper limit 12 Upper lim 124 120 Lower limit Lower Lower limit Time (houn after wakening) Time (hours after awakening) Time (hours after awakenin SYSTOLIC BP (mm Hg)

please i really need your help with this

7. You can see an MSDS below. Please answer the following questions related to the MSDS. a) What is the name of this chemical? b) What should you do if someone drinks the chemical? c) Would this chemical catch on fire if it was exposed to flames? d) If this chemical gets in your eye what should you do? e) What color is this chemical? f) What should you do if someone spills a small amount of the chemical?

Which of the following statements is not correct concerning lab safety rules? Lab instructor must be notified if there is a mercury spill due to a broken mercury thermometer. The wearing of shorts, tank and sandals is permitted in the laboratory. Fire alarms, fire extinguishers, showers, and eye washing device, are examples of safety equipment's in your lab. Clean pipets and droppers cannot be inserted into the original reagent bottle.

Please answer in more than 6 sentences

Is this correct for the diaper dissection lab

Chemical Manufacturers Association (CMA) and four companies that manufacture chemicals challenged a test rule promulgated by the Environmental Protection Agency (EPA) under the Toxic Substances Control Act (TSCA). The plaintiffs asserted that the EPA must find that the existence of an unreasonable risk of injury to health is more probable than not before it may issue a test rule under the Act. In response, the EPA claimed that it may issue a test rule under the TSCA if the agency determines that there is a substantial probability of an unreasonable risk of injury to health. The test rule required toxicological testing to determine the health effects of the chemical, 2-ethylhexanoic acid, and imposed on exporters of this chemical a duty to file certain notices with the EPA. What standard should be applied? Why?