Hello I have a lab expierment about QUALITATIVE CHEMICAL ANALYSIS I've pasted a link to the video where you can find the data from.and the word document where it'll explain everything.thank youhttps://www.dropbox.com/s/ratvx2uyun3c13i/expt.%20...

even if you can only see a handful of celestial objects you can fulfill this assignment. The purpose of this is to introduce you to your local night sky, and to the difficulties faced by early astronomers. It is also to have you note , and comment on, the apparent motion of the sky. So observing in a light polluted area (even your own back yard) isn't a deal-breaker by any means.PROCEDURE: Pretend you are an early astronomer, like Tycho, Kepler or Newton, just getting started. You've had access to the textbook chapter so you should already have a pretty good idea of what to expect. Go outside after the sky is completely dark on a clear (few clouds, no fog, no rain etc.) night this week. Take paper and pencil and make notes about as much of what you see as possible. Draw a simple diagram noting the locations, colors (if any) etc. of the brightest objects, even if you don't know their names. Draw a horizon line noting items like trees or buildings that you can use to orient yourself when you do this again. Go back outside at least two hours later on the same night and write down how the sky has changed - especially with regard to the positions of the objects in the sky. Create a second drawing. Make careful note of the date and time of each observation and the direction you are facing. (See below for a sample).

Describe the handling and storage considerations for the following substances (important issues to address are underlined) (20 points)Radio-labeled benzoylecgonineMethanolic solution of cocaineBlood sample suspected of containing benzoylecgonine/cocaineConsider in your answer what you learned in this module in regards to controlled substances and hazardous materials as well as under the aspect of contamination and access to samples. You will need to do additional research to determine the specifics for each respective material.Many accreditation standards now require that the uncertainty of measurement for an analytical method be addressed.What is uncertainty of measurement? Provide a definition and briefly describe how it can be measured. (5 points)How would you determine the uncertainty of measurement for a procedure that quantifies a single analyte in a blood sample? In responding to this question, you first need to identify a specific quantitative analytical procedure, for example, a procedure used for the quantitation of methamphetamine in blood. Be sure to include all of the components that contribute to the uncertainty of measurement for this analytical procedure. Also, include an explanation of the final results from a statistical standpoint. Please note, in describing the final results, you do not have to perform any calculations, you just need to describe what the final results would consist of. If you are unfamiliar with analytical procedures routinely used to quantitate drugs in a blood sample, you will need to conduct some research to assist you in completing this assignment. (15 points).A good guideline and explanation of uncertainty of measurement can be found on the National Institute of Standards and Technology (NIST) webpage: http://physics.nist.gov/cuu/Uncertainty/index.html (Links to an external site.)