To avoid the possibility of “mouth alcohol,” the operator of a breath tester must not allow the subject to takeany foreign materials into the mouth for ___________minutes before the test.

Q: Handwritten please What are the factors that affect the gas chromatography analysis?

A: The analytical method used for the separation of two molecules from a mixture that includes lipids,…

Q: Among the tests in the Physical Examination of Urine, odor, color and clarity is there or are there…

A: Physical examination of urine is done for screening early symptoms of illness as part of a regular…

Q: A student is viewing the letter "e" on a slide. The studentcan clearly see the letter when using the…

A: The amount or degree of visual enlargement of a seen item on a microscope is referred to as…

Q: A patient has been given an MDI of albuterol and is instructed to take two puffs three times a day,…

A: Inhaler is used to deliver asthma medications. Appropriate use of inhaler is important to ensure the…

Q: True or False: Portable handheld roadside breath testersfor alcohol provide evidential test results.…

A: Evidential test results are important from the criminal point of view as they help the investigators…

Q: J A positive result for Fohl's test is the formation of a black precipitate in the form of lead. O A…

A: Fohl's Tests - This test is performed to detect the presence of amino acids containing sulfur. The…

Q: The most sensitive and reliable instrument for detectingand characterizing flammable residues is the…

A: Flammable liquids can be easily ignited in the air at ambient temperature. These are ethanol,…

Q: One of the following devices is very sensitive and very fast for measuring temperature change, it…

A: Thermocouple it's miles a thermoelectric temperature measuring tool made from wires of different…

Q: A pesticide with high vapor pressure has more ability to penetrate through a fine textured  , true…

A: Vapor pressure is a pesticide's tendency to evaporate or to change from a solid or liquid into a…

Q: When a thermometer is placed in a substance, what is it actually measuring? density heat pressure…

A: Different instruments are used to measure volume, density, heat, pressure, and temperature, etc.…

Q: Which of the following tests will determine if an oil is rancid, i.e. it has undergone oxidation?…

A: Oil is a type of lipid and is composed of triglycerides. Triglyceride is a lipid that stores energy…

Q: When drawing blood for alcohol testing, the suspect’s skin must first be wiped with a(n)…

A: Disinfectants are mostly the chemicals that are usually used for nonliving things.

Q: Why is it recommended to have a carbon monoxide detector on each floor of a home?

A: Similar to how a smoke detector will sound an alarm when smoke is discovered, these carbon monoxide…

Q: Why is the micropipette an important tool in the clinical chemistry section

A:

Q: True or False: A first step in the forensic examination offibers is to compare color and diameter.…

A: A forensic examination is usually done at the crime scene to identify the victim. The forensic…

Q: Explain the reason for the use of different medium blanks in adjusting thespectrophotometer prior to…

A: Different medium for the growth of bacteria have different components. Due to presence of different…

Q: QUESTION 1 What is 105 ng ml in: a. ug ml b. mg 1 C. pg1 d. g/ul (Please list each answer on a…

A: To answer this question, you should know the conversion metrics.

Q: For measuring an exact volume of 200 microliters you have to use all options are correct. plastic…

A: Transfer of solutions, medicines, microbial spore suspension etc, require volumes measured to be…

Q: You want to pipette 250uL of a sample in the lab. Which pipetter do you use? O p20 O p200 Op2 O…

A: Pipetter It is a laboratory tool commonly used in chemistry, biology and medicine to transport a…

Q: Chromatography is not used to separate mixtures. O True O False

A: Introduction There are various biochemical  techniques which is used to separate the components of…

Q: True or False: One of the major deficiencies of forensicscience is the inability of the examiner to…

A: Answer: Introduction: Forensic science, also called as criminalistics, which study the criminal…

Q: True or False: General testing for poisons is not a routine procedure carried out by the…

A: Forensic pathology is the specialized field of medicine that effectively deals with the underlying…

Q: Materials: Wash Bottle Stirring Rod Desiccator Burette/Buret Kindly describe EACH of the items…

A: Chemical experiments require proper handling of different types of equipment and proper usage of…

Q: Materials: Pipette/pipet Volumetric Flask Reagent Bottle Reagent Classifications: (USP, CP, AR,…

A: Pipette, volumetric flask, reagent bottle and reagents are used in a laboratory for performing…

Q: For this statement, answer True or False and explain your answer briefly. A urine sample cannot be…

A: Introduction Forensic toxicology:- It is the application of toxicology to cases and issues where bad…

Q: .C The liquid-in-glass thermometers

A:

Q: What are the precautions that should be observed during the experiment for making soap

A: Soap is a fatty acid salt that is used in many cleaning and lubricating goods. Soaps are surfactants…

Q: A student performs a serial dilution but is not careful about the correct procedures for using the…

A: When a substantial drop in concentration is necessary, it is far more precise to do numerous smaller…

Q: An individual works in an atmosphere containing 1.8E-7 µCi/ml of 235UF6 for 8 hours under normal…

A: The committed dose by ALI is different for different time period, if the time duration is increasing…

Q: Why CF is the best-researched technique

A: Cystic fibrosis is also known as CF is a common disease that is an inherited disorder that causes…

Q: The clarity of a urine sample should be determined a. After warming up the sample to 45°C b.…

A: The normal color of urine is pale to dark yellow and it is usually clear with no visible particles.…

Q: The pharmacist weighed 475 mg of a substance on a balance of dubious accuracy. When checked on a…

A: Percent error or percentage error expresses as a percentage the difference between an approximate or…

Q: One of the following matches regarding grades of air supply is incorrect Select one: ISO Class 3…

A: Pollution is any undesirable change in physical, chemical or biological characteristics of air,…

Q: If there are bed sheets that are soaked in blood they should be placed in  a bio-hazardous linens…

A: Sterilization is a technique used to eliminate or dispose of unwanted particles or contaminators…

Q: How are we going to respond to this situation? The situation is, you open a cleaning pad and an…

A: A procedure in which the blood sample is collected by pricking the newborn baby's heel is known as…

Q: Please select the word from the list that best fits the definition An odorless radioactive gas

A: An odorless radioactive gas : RADON. Radon is a colorless, odorless, radioactive gas. It forms with…

Q: Give some measures while handling or working with any radioactive element.

A: Radioactive elements are unstable isotopes, which release subatomic particles or energy as they…

Q: . The body fluids ___________ and ___________ are both desirable for the toxicological examination…

A: The pH of the media in which the sample has been dissolved is carefully controlled to extract drugs…

Q: THE DEVICE FOR AIR SAMPLING FOR BACTERIAL CONTAMINATION 1. Krotov's apparatus 2. luximeter 3.…

A: Q. THE DEVICE FOR AIR SAMPLING FOR BACTERIAL CONTAMINATION  1. Krotov's apparatus 2. luximeter 3.…

Q: A bottle filled with previously moistened mustard seeds and water was screw-capped tightly and kept…

A: Step 1 Water is essential for all physiological activities of plants. It is a medium in which…

Q: Good blood film should not cover the entire surface of slide and have .waves and holes

A: Blood is the most essential body fluid in some animals and humans which is involved in delivering…

Q: Clinical thermometer can be sterilized by boiling. a) True b) False

A: A clinical thermometer is a device that is used to measure the human body temperature. It is made up…

Q: Give a vivid explanation of the definition, principles, types or forms, standard operating procedure…

A: Antigens are defined as the substances or the molecules that are present on the surface of the…

Q: Draw the letter "e" in a Low Power Objective (LPO), High Powe Objective (HPO), and Oil Immersion…

A: Microscope is the instrument used in the laboratory several objects that are usually not visible to…

Q: Can you help me identify the fractions pls. ASAP!!! Please and thank you!!

A: A dihybrid cross is a experiment between the two individuals that belongs to same hybrids for two…

Q: May I ask is there a way to identify the working environment with toxic gas concentrations exceeding…

A: The most common hazardous gases encountered in confined areas are Volatile Organic Compounds (ppm…