All experiments that produce noxious and toxic fumes and gases must be performed under the sink. A sink is a well-ventilated enclosure in the laboratory,

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A: A question based on environmental pollution that is to be accomplished.

Q: List some industrial plants in kenya and indicate the gaseous pollutants they emit

A: Industrial plants in kenya Gaseous pollutants emit Amu coal power plant  lead , Arsenic and carbon…

Q: While assembling the equipment and raegents for this investigation, suppose you spilled 500 mL of 1M…

A: IF you spill 500mL of 1 M HCl. on your jeans you should do the following things.

Q: On a lab quiz, a student listed the steps to properly use a pipet. Which step is incorrect? O Pull…

A: Answer - The  correct option is (b) Use the rubber bulb to blow any remaining liquid from the pipet…

Q: Evaluate the following conversion. Will the answer be correct? Explain.rate = (75 m/1 s) × (60 s/1…

A: The given conversion is: rate = 75 m1 s× 60 s1 min× 1 h60 min

Q: O a. Students cannot put a chemical directly on the balance pan. O b. Solid waste can be disposed in…

A: Solid waste can not be disposed in the sink because this could be a reason of water pollution. Some…

Q: If it takes 4.82 minutes to fill a 50.0 gal gas tank, calculate the gasoline flow rate in mL/s.

A:

Q: Why laboratory safety important

A: Safety in the laboratory should be first priority It is because accident and injury can happen…

Q: True or False: One way oxygen can get into the water is oxygen from the atmosphere dissolves and…

A:

Q: 5- You need to pipette a 50μl from a 500ml stock bottle what should you do? Use small volume from…

A: Our target is to remove a 50 μL solution from a 500 mL stock bottle.

Q: List five (5) information that you should read on a chemical container and briefly describe their…

A: Labels as defined in the HCS, are an appropriate group of written, printed or graphic informational…

Q: During the desorption study, you used 10, 15, and 20 μL of 10% hydrogen chloride.  Determine the…

A: Given: Volume of solutions used are 10 μL, 15 μL and 20 μL. And the %(m/v) of the HCl in solution =…

Q: Which of the following is NOT a part of filtration systems? Filter paper Funnel O Condenser

A: To find: Which of the given is not a part of filtration system

Q: GENERAL CHEMISTRY 2 (STEM GRADE 12) Name: Section: Score: Code # I. Modified True or False…

A: Solution is made up of solute and solvent. Solute is present in small amount and solvent is present…

Q: PRE-LAB QUESTIONS ERIME GasLa 1. Differentiate among solids, liquids, and gases on a molecular…

A: Gases , solids and liquids are made up of atoms/molecules/ions .Solid has definite shape and volume…

Q: The environmental, biological, and toxicological outcomes of substances are strongly affected by…

A: Dioxin and DDT both are cl containing compounds.According to their physical and chemical properties…

Q: What methods are used to detect the release or presence of hazardous chemicals? a)  Odor, visual…

A: Correct option is  (c.) That is Air monitoring, housekeeping, odor    Incorrect options are : a)…

Q: Which of the following is a best practice in case a fire breaks out in a laboratory? A Shut it off…

A: When fire breaks out our first priority is to shut it off.

Q: C5H12O 래 3.5 3.0 쇄 2.5 1.7 PPM H 모 1.5 H 0.5 PPM 19

A:

Q: Read the scenario below. Identify what is inappropriate lab behavior in each instance. Then write…

A: The inappropriate lab behaviour of Kendra is that, she is not wearing safety goggles. Another…

Q: 10:24 Worksheet-No.-1-Com...Laboratory-Apparatus-1 Done 'C

A: It is an alcohol burner. it is used to to produce flame or heat

Q: List five (5) examples of gases that are used in everyday life and provide its Chemical composition…

A: There are several gases are used in everyday life .

Q: Which of the following is NOT included in Section 9: Physical and Chemical Properties   Melting…

A:

Q: Select the correct statement associated with laboratory safety. There is more than one correct…

A: Among all the statements first statement is wrong because food ingestion and chemically contaminated…

Q: 12. Pure chlorine enters a process. By measurement it is found that 2.4 kg of chlorine pass into the…

A: Molar Flow Rate  : It can be defined as the no of moles (n) of a substance passed through a line per…

Q: I need help with question number two listed on the file attached.

A: Hydrated salt is a compound with one or more chemically combined water molecule.Anhydrous salt is a…

Q: What are the primary criteria for environmental hazard? Select the correct response: Acute and…

A: Environmental hazards are those which causes hazard to the earth and ecological system which in turn…

Q: What are the assumptions in the Ruth equation for filtration?

A: Ruth's equation is used to predict the filtration and performance.It is very much useful to predict…

Q: Explain the importance of knowing laboratory safety rules, guidelines, and waste

A: Given : Laboratory safety rules, guidelines and waste  To find : Importance of Laboratory safety…

Q: How should goggles be worn in a chemistry lab? A. Over your eyes during the entire lab work is going…

A: Question : When googles should be worn in a chemistry lab.

Q: both chemical and flame tests are used to positively identify carbon dioxide gas. true false

A: Yes both chemical and flame test are used to positively identify carbon dioxide gas so it is true .…

Q: 1A. You are finished with the lab activity when: a. you have collected your data b. you have…

A: 1A) You are finished with the lab activity when:

Q: Water purification is essentially not * a. filtration of solids b. removal of chemical c.…

A: In this question, we have to answer which option is not included in water purification.

Q: A pipet delivers 10.9 mLmL , 10.1 mLmL , and  10.9 mLmL  in consecutive trials. Find the mean volume…

A:

Q: Pure oxygen diffuses through an aperture in 224 seconds, whereas a mixture containing 80% oxygen gas…

A:

Q: In your own words describe the operation of a clinical Laboratory

A:

Q: in

A: Dear student this question is related to diffusion concept.

Q: Calcium hydroxide reacts with sulphuric acid and gives calcium sulphate precipitate For rapid…

A: For the rapid separation of the precipitate, several techniques can be used like centrifugation,…

Q: True or false?  (No need explanation) different types of gloves protect against different types of…

A: Here three statement is given and question asked about the statement is true or false.

Q: what are the differences and similarities of "The Chemical Professional's Code of Conduct" with Good…

A: The Chemical professional code of conduct is established to maintain the scientific integrity and…

Q: 1. Several students performed this experiment without paying adequate attention to the details of…

A: According to charles law volume is directly proportional to temperature

Q: Which of the following is not recommended if a student's clothing catches on fire in the lab? Wrap…

A: Necessary precaution should be taken when a student's clothes catches fire in the lab.

Q: a. Safety glasses should be worn in a laboratory at all times to decrease the likelihood of eye…

A: Here given all statement We  conclude that

Q: Before investigating the scene, the technician must dilute the luminol solution to a concentration…

A: Given : molar concentration of dilute solution of luminol = 4.00 × 10-2 M  Volume of solution = 2.00…

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

A: Filtration  is done so as to avoid The unwanted  side products .

Q: What are each of the following observations an example of? Drag the appropriate items to their…

A: Diffusion is defined as the capability of gases to mix with each other without needing bulk motion.…

Q: Write a descriptive introduction about Decantation is a scientific process using gravity and…

A: Decantation is a process used to separate a precipitate from a solution.