lab-safety-worksheet

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.

Identify basic procedures for dealing with laboratory accidents.

What is the practical importance of extraction in relation to chemistry especially when it comes to drugs?

Scientists study the impact of changing only one component of a cancer treatment in a laboratory. Which of the following describes the study? controlled experiment observational study conceptual model computational study

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

Which analytical separation method is best for recovering river bodies that are polluted by heavy metals and particulate matter. Explain your analytical process of choice.

Anna is excited about conducting her lab today. She takes out her lab sheet and reads over the lab. She gathers all of the lab materials. She follows each lab procedure step-by-step until she has completed the procedure and recorded all of the data she collected. Afterward, Anna takes two of the substances and mixes them together to see what will happen. Which lab safety rule did Anna break? a. Follow all written and verbal instructions. If you do not understand something, ask the teacher first. b. Monitor experiments at all times. c. Wear goggles any time chemicals, heat, or glassware are used. d. Only perform experiments that your teacher tells you to perform. Never do anything that is not in the procedures.   PLEASE ANSWER THE QUESTION.

How can you establish and promote a strong, enthusiastic, vibrant safety culture in the laboratory?

Explain your rationale for using the summative assessment (below) from the lesson plan on mixing substances in a 5th-grade classroom based on the below standard and learning objective, including how it aligns with the learning objective.  Summative Assessment  Summative: Components of the Lab Report Purpose: The student should clearly state the purpose of the experiment, which is to determine whether the mixing of two or more substances results in new substances. Procedure: The student should describe the steps they took to conduct the experiment. This includes the substances they chose to mix and the safety equipment they used. Observations: The student should record any observable changes that occurred when the substances were mixed. This could include a color change, the formation of a precipitate, or a change in temperature. Conclusion: The student should state whether a new substance was formed based on their observations. They should also reflect on their accuracy in…

Historically, toxicology testing has been focused on one chemical at a time, yet we are rarely expose to chemicals in isolation. Why do you think this approach to testing has been taken? What challenges may be involved in studying mixtures of chemicals?

Supply the missing information in the table. (Given in Blue). Answers in scientific notation should be in this sample format >>> 1.0 x 10-14

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

What is Donnan's theory? What is its importance in biophysical chemistry?

In your own words describe the operation of a clinical Laboratory

What are replicates in Analytical Chemistry? O The component of a sample that repeats over different assays. Similar assays done to different samples A sample that contains exactly the same amount of analytes than the original sample similar samples that are analyzed at the same time and in the same way

List and discuss five key differences between an academic research laboratory and a commercial laboratory which provides analytical services.

I don’t know how to do chemistry at all and I need help.

please highlight the correct answer

2 In your one semester being enrolled in the subject Analytical Chemistry II, write your major take aways that you will never forget and explain why? For the purposes of improvement in terms of course delivery and curriculum, what changes do you wish to suggest? Finally, as a reflection, in a scale of 1-10 (1 being the lowest and 10 being the highest) how do you rate your performance in this subject.

what are the roles of following in crime scene investigation and how do they interact with each other? scene of crime officer(SOCO) forensic scientist police pathologist fire department gas/electricity adviser specialist dog units

The spectroscopic data in the table is generated with five solutions of known concentration. Concentration (M) 0.0133 m= 0.0266 0.0532 0.106 0.213 Absorbance 0.1271 What is the intercept of the linear regression line? 0.08531 0.5388 1.069 Use a spreadsheet program, such as Microsoft Excel, to graph the data points and determine the equation of the best-fit line. 1.954 What is the slope of the linear regression line formed by these points? M-1

Subparts 4-6

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STANDARD SAMPLE PREPARATIONS FOR ABSORBANCE & CONCENTRATION DATA Concentration of stock nickel sulfate hexahydrate solution = .400 Molarity Sample Volume Absorbance Concentration (In Molarity) a 5 mL .179 10 mL .329 15 mL .588 20 mL .760 25 mL .939 Reference Blank = 0 Please show how to find Molarity, please show steps. Thank you and stay safe.

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

The protein concentration of a protein isolate was determined using the Bradford assay. Five dilution of bovine serum albumin (BSA) were prepared from a 5.00 mg/mL BSA stock solution. To these dilutions, 100 µl of Bradford reagent were added. After 5 minutes, the absorbance was taken at 595 nm. Standard # BSA, in mg/mL Volume of Bradford reagent, A595 in mL 1 5.0 0.000 1.00 5.0 0.134 3 2.00 5.0 0.265 4 3.00 5.0 0.388 4.00 5.0 0.497 The supernatant dilution was prepared by mixing 49 µL of the protein isolate with 16 µL water. The absorbance was taken 5 minutes after addition of 100 mL Bradford reagent. Calculate the protein concentration (in mg/mL) of the original isolate if the absorbance at 595 nm was 0.413. Note: Final answer format must be x.xxx (three decimal places). Round off only in the final answer. Do not round off in the middle of calculation.

Normality of a solution was determined by five different titrations. The results were 9.5 mL, 8.5 mL, 9.1 mL, 9.3 mL, and 9.1 mL. Calculate the mean, median and standard deviation of this data

Please don't provide handwriting solution

Create an illustration showing the preparation of two-fold serial dilution follows the ratio of the final dilutions as shown in the table above.

What safety rules did Andrew break?

8 - 14 please

Please answer in more than 6 sentences

I'm resending this question because the image on the last one was blurry. I wrote the prompt and steps and helpful conversions to figuring out the real world problem on my scratch paper, how do I solve for this problem?

The following volumes of 0.000300 M SCN are diluted to 15.00 mL. Determine the concentration of SCN in each sample after dilution. These values will be used during the experiment. To enter exponential values, use the format 1.0e-5. Sample 0.000300 M SCN (mL) [SCN'] (M) 1 1.50 3.50 7.00 4 10.00 3.

use ion exchange method in analytical separation to separate mercury and nickel from polluted water using analytical steps and protocols.